What is the shortest period in which a population of darwin's finches can evolve?

Answers

Answer 1
Darwin's finches are a gathering of around fifteen types of passerine winged animals. They are outstanding for their exceptional decent variety in nose frame and capacity. They are regularly named the subfamily Geospizinae or tribe Geospizini. 
After an immense dry spell, the greater hooked finches lived and the littler ones passed on. So two years after the fact finches har mouths that were somewhat greater.
Answer 2
Final answer:

The evolution of Darwin's finches, observable in changes in beak size, can occur within a single generation, as demonstrated by a study conducted by Peter and Rosemary Grant. This was particularly evident during periods of abnormal rainfall due to El Nino. This is a significant example of natural selection and evolution.

Explanation:

The evolution of Darwin's finches, especially in relation to their beak sizes, offers a fascinating insight into the principle of natural selection. The study by Peter and Rosemary Grant indicates that these changes can occur within a single generation. This study involved analyses of the Galápagos finches, with particular attention to the medium ground finch on the Galápagos island of Daphne Major.

They found that during periods of abnormal rainfall due to El Nino, the availability of large, hard seeds reduced, which were, typically, food for large-billed birds. Conversely, there was an abundance of small, soft seeds which were favored by small-billed birds. This resulted in the small-billed birds being more successful in survival and reproduction.

In subsequent years, when the Grants measured the beak sizes within the population, they found the average beak size to be smaller. Hence, the shortest period within which a population of Darwin's finches can evolve is one generation, influenced by environmental changes and survival necessities. This is a significant example of natural selection and evolution.

Learn more about Evolution of Darwin's Finches here:

https://brainly.com/question/35490832

#SPJ3


Related Questions

When pressing and releasing the swollen ankle indentations remained in the soft tissue?

Answers

This condition is called Edema. It is when something swells up, which happens when too much fluid is trapped in the soft tissues. Blood vessels emit the fluid which fills up in the soft tissue. It can happen because of burns, allergic reactions, and even pregnancy. (Sometimes women's feet swell.)

The correct medical term for the described condition is "pitting edema."

Pitting edema is characterized by the formation of indentations or pits in the skin that remain for some time after pressure is applied to the swollen area. This condition typically occurs in the lower extremities, such as the ankles, due to the effects of gravity on the accumulation of fluid in the tissues. It can be a sign of underlying health issues, such as heart failure, kidney disease, liver cirrhosis, or venous insufficiency. It is important for individuals experiencing pitting edema to seek medical evaluation to determine the cause and appropriate treatment.

The mechanism behind pitting edema involves the accumulation of fluid in the interstitial spaces of the soft tissue. When pressure is applied to the skin, the fluid is pushed away from the area, creating a visible indentation. The persistence of the indentation indicates that the fluid does not quickly return to the affected area, which is a hallmark of pitting edema. The severity of the condition can be graded based on the depth and duration of the pitting after the pressure is released.

Treating bacteria, like
e. coli, with a cold solution of calcium chloride can make the cells more receptive to take up dna from a solution. bacterial cells prepared by this process are referred to as:

Answers

This process is known as transformation. In this process, the cells are exposed to calcium ions so that they may become competent to take up the DNA. Calcium chloride creates pores in the cell which enables the cell to take up DNA. Apart from calcium chloride, small electric current is also used for the same. 

Which property below is shared by both carbohydrates and lipids?

A. Both have the same number of oxygen atoms

B. Both are sources of cellular energy

C. Both are dissolvable in water

D. Both have the same proportion of carbon-hydrogen bonds

Answers

We are asked to determined which of the following choices above will be the correct shared property of a lipid and carbohydrate. To know the answer we must evaluate each of the choices.
a. Both have the same number of oxygen atoms 
- This is incorrect. Oxygen atoms of carbohydrate and lipids are different since 
lipid are usually unsaturated.
b. Both are sources of cellular energy.
- Carbohydrates is the main energy source of human body while lipids are the standby energy source when all the carbohydrates are consumed in the body.
c.Both are dissolvable in water.
-This is incorrect. Lipids are non-polar while water is polar. Like dissolves Like.
d. Both have the same proportion of carbon-hydrogen atoms
-This is incorrect since Lipids are usually double bonded atoms. thus it contain lesser amount of carbon compared to carbohydrate.

Therefore, the correct answer to this is letter B. Both are sources of cellular energy.

You have a large, healthy philodendron that you carelessly leave in total darkness while you are away on vacation. you are surprised to find that it is still alive when you return. what has the plant been using for an energy source while in the dark?

Answers

The plant holds reserves of starches and sugars in its system during the times in which it has access to light. During periods of darkness, it will access these reserves if there are no other forms of light available or accessible.
Final answer:

The philodendron plant would switch to an anaerobic metabolism, using its stored sugars to produce energy in the absence of light. Additionally, the lack of light may cause changes in the plant's phytochrome system, adjusting its physiological activities according to the perceived day/night cycle.

Explanation:

A philodendron plant placed in complete darkness for an extended period while still alive would have switched its metabolism to an anaerobic state. Under normal light conditions, plants utilize photosynthesis to produce sugars and oxygen from carbon dioxide and water. However, in the absence of light, photosynthesis cannot occur, and the plant subsequently switches to anaerobic metabolism, also known as respiration. This process doesn't require light, but instead makes use of the stored sugars in the plant and oxygen to produce energy. It's important to note that while the plant can survive for a while in a darkness-induced dormant state by burning these sugars for energy, prolonged darkness will put the plant at risk as it runs out of sugar supplies without the ability to photosynthesize and generate more.

Furthermore, the decreased availability of light may trigger a shift in the plant's internal processes such as its phytochrome system. Many plants use this system to discern the day/night cycle and adjust their physiology accordingly. It works based on the ratio of two forms of phytochrome: the active Pfr form and the inactive Pr form. In darkness, the active Pfr form slowly reverts back to the inactive Pr form, and if the darkness prolongs, all of the Pfr form may revert. If the plant is in a dormant state, this could possibly indicate winter and the plant will remain dormant until light conditions improve once again. Understanding these processes reflects the sophisticated use of light plants have in order to adapt to their environmental conditions.

Learn more about Photosynthesis and Plant Adaptation in Darkness here:

https://brainly.com/question/31787611

#SPJ12

How do enzymes catalyze chemical reactions (don't just say "they lower the activation energy", give me specific mechanisms)?

Answers

they do lower the activation energy but they provide an alternate pathway for the reaction to happen quicker and they do not get used up in the reaction
Final answer:

Enzymes hasten chemical reactions by lowering their activation energy. They do this by forming a unique complex with the substrate in a 'lock and key' manner. This complex helps to break the bonds of the substrate more quickly, effectively catalyzing the reaction.

Explanation:

Enzymes catalyze chemical reactions by reducing the activation energy needed for the reaction to occur. They achieve this through a mechanism called 'enzyme-substrate complex.' An enzyme has an active site which is a unique and specific shape, where the reactant, known as the substrate, fits like a lock and key. When the substrate binds to the enzyme's active site, it forms an enzyme-substrate complex. This complex helps to break the reactants’ bonds, therefore transforming the substrate into a product at a faster rate than it would have without the enzyme. Some enzymes might also go through a process called induced fit, where the enzyme changes shape slightly to better accommodate the substrate.

Learn more about Enzyme Catalysis here:

https://brainly.com/question/30088124

#SPJ3

Which statement best contrasts food chains and food webs?

Answers

I would say that your correct answer is B 

Question 2 the nurse is caring for a patient who is receiving diphenhydramine. the nurse notes that the patient has not voided for 12 hours. what action will the nurse take? encourage the patient to drink more fluids. evaluate the bladder to check for distension. request an order for an intravenous fluid bolus. request an order for urinary catheterization.

Answers

Diphenhydramine (Benadryl) is an H1-antagonist, with unfortunate anti-cholinergic side effects: dry mouth (xerostomia), dry eyes (xerophthalmia), and also including urinary hesitancy and inability to void.
I would presume to think that the next best action would be to evaluate the bladder for bladder distension.
If overly distended, then a urinary (foley) catheterization may be warranted to void the patient. However, ordering a Foley first may be an unnecessary, uncomfortable, and likely painful procedure.
After examining the bladder externally (suprapubically), then fluids may be warranted.

If you ate a hamburger, you would probably only get about _____ of the original energy from the Sun. 10% 1% 0.1% 0.01%

Answers

Hey Abuz, thanks for asking a question here on Brainly. 

If you ate a hamburger, you would probably only get about 0.1% of the original energy from the sun since hamburgers are typically prepared on stovetops and grills. 

Answer: Letter C 

Hope that helps! ★ If you have further questions about this question or need more help, feel free to comment below or post another question and send the link to me. -UnicornFudge aka Qamar

Answer:

0.1%

Explanation:

The original energy of the sun is only absorbed by us humans when we feed on the organisms that are in the food chain and are called producers. Basically, the producers are the plants, which make photosynthesis and directly absorb the sun's energy.

In short, we can say that we only absorb energy from the sun when we eat plants. In the case of the hamburger, the sun's energy is passed to us through lettuce, tomato and onion (if your hamburger has these ingredients) which will give us about 0.1% of the sun's original energy.

Two-year-old asha is listless, small for her age, has an extended abdomen, and brittle hair. she is most likely suffering from _____.

Answers

The child must have been experiencing malnutrion as this corresponds to the given symptoms that the child shows. Which is having to have an extended abdomen which a child who is malnutritioned usually has, listless- in which the child has no energy because he or she lacks nutrients in the body, small for her age is one of the signs of malnutrition because in order for her to be in the right height for age—she must have an adequate nutrition to attain this.

c) _______________________ are tiny blood vessels that transport absorbed nutrients.

Answers

Capillaries are your answer. Without these, your body will not have the essential nutrients needed for specific places in the body.
Capillaries are the tiny blood vessels

Monte was born with cataracts. he had surgery when he was 30 years old, which restored his sight. after his surgery:

Answers

He could not recognize things by sight that were familiar to touch
Final answer:

Monte was born with cataracts. he had surgery when he was 30 years old, which restored his sight. After his surgery it's important to protect eyes from UV exposure, and each individual might respond differently after the operation.

Explanation:

Monte, who was born with cataracts, underwent surgery to restore his sight at age 30. Cataracts, or clouding in the eye's lens, are a cause of diminished vision. A surgery is performed to replace the cloudy lens with a plastic one, and the success rate is generally high. Nearsightedness, farsightedness, and astigmatism can usually be corrected to produce normal distant vision in more than 90% of the patients.

There could be a few implications after undergoing such a surgery. There might be changes to the cornea and the lens' ability to focus properly, and the eyeball might enhance with age, causing images to focus in front of the retina. At times, repeated exposure to UV-B might lead to cataract formation, which is why it is important to protect the eyes against UV exposure.

Learn more about Post-Cataract Surgery Experience here:

https://brainly.com/question/38608836

#SPJ2

explain why biologists say that a cell is alive, but none of the individual molecules inside the cell are alive.

Answers

Because the cell is considered an organelle which is a biological mechanism which consists of different parts, whereas a molecules is a single part and not a mechanism.
Because the cell is considered an organelle which is a biological mechanism which consists of different parts, whereas a molecules is a single part and not a mechanism.hope this helps:D

plz give brainiest

What is the difference between glycerol and glycogen?

Answers

Glycogen is a polysaccharide that is often referred to as animal starch (however this is not correct). It is the storage form of glucose in animal cells.

Glycerol is a compound consisting of a simple molecule. Used during the preparation of prescription drugs. 

(hope this helps somewhat, let me know if you need me to explain)
Final answer:

Glycerol and glycogen differ structurally and functionally; glycerol is involved in lipid metabolism as a component of fats, while glycogen, a highly branched polysaccharide of glucose, serves as the main energy storage form in animals.

Explanation:

The key difference between glycerol and glycogen lies in their structure and function within biological systems. Glycerol is a simple polyol compound involved primarily as a backbone in the formation of triglycerides and phospholipids in lipid metabolism. Conversely, glycogen, a highly branched polysaccharide made up of glucose units, serves as the main form of stored energy in animals, including humans. Glycogen's structure allows for rapid mobilization into glucose to meet the body's energy needs, especially during physical activity or when glucose levels in the blood are low. Glycerol, on the other hand, plays a crucial role in storing energy but in a different context, as part of fat molecules. Glycogen is synthesized and stored mainly in the liver and muscle tissues and is crucial for maintaining blood sugar levels and providing energy during exercise. Its structure, which includes branches occurring about every 8-10 residues, makes it denser and more readily accessible as an energy source than its plant counterpart, starch, which is less branched.

I NEED QUICK BIOLOGY HELP!

Which box depicts the simplest level of organization?
A) P
B) Q
C) R
D) S

Answers

the answer to this is p or s, I'm not sure.

I agree its R                  kjfvjdnjfvnvfgkjvfgjlfs                                                                                                                  

Which are examples of habitat destruction? Check all that apply.

Answers

A,C,D are the answers. I took Biology.

The most common form of reproduction among prokaryotes is

Answers

Binary Fission is the most common form of reproduction among prokaryotes. 

Secondary succession occurs in ecosystems without soil. Please select the best answer from the choices provided T F

Answers

The correct answer would be B) FALSE because secondary succession DOES NOT occur in ecosystems without soil.

The given statement is false.

The secondary succession occurs at the place where the primary ecosystem has be destructed due to natural disaster or man made activities.The secondary succession needs soil to grow.

The area which was having an ecosystem prior, and it was destructed due to natural disaster, there are chances that new ecosystem may form there in due coarse of time.

This is known as secondary succession that takes place on the soil.

3 similarities and 3 differences between photosynthesis and cellular respiration

Answers

In plants, photosynthesis, occurring in chloroplasts, is an anabolic (bond-building) process whereby CO2 and H2O combine with the use of light (photon) energy. This yields O2 and sugar (i.e. glucose). This occurs in 2 phases: light-dependent and dark (Calvin cycle) reactions, which both continually recycle ADP/ATP and NADP/NADPH.
The catabolic (bond-breaking) process in plants is cellular respiration, in which glucose is broken down with O2 by glycolysis (cytoplasm only) and mitochondrial reactions (Krebs cycle and E.T.C.) to yield CO2 and H2O. These reactions recycle ADP/ATP and NAD/NADH. The CO2 and water produced by cellular respiration feed into the photosynthetic processes, and in turn, the O2 and glucose resulting from photosynthesis supply the respiratory reactions.

What is the responsibility a person has for enhancing one’s health?

Answers

Integrity and Acceptance

Each individual bears the responsibility of enhancing their own health. It is incumbent upon them to take proactive steps toward improving their well-being.

This entails making conscious choices that prioritize healthy habits and behaviors. It involves maintaining a balanced diet, engaging in regular exercise, managing stress levels, getting sufficient sleep, and avoiding harmful substances. Furthermore, individuals are responsible for seeking preventive care, such as routine check-ups and screenings, to detect potential health issues early on.

They should also invest in self-care practices that promote mental and emotional well-being.

Therefore, by being proactive in their approach to health, individuals can empower themselves to lead healthier lives and contribute to their overall well-being.

For more details regarding healthy habits, visit:

https://brainly.com/question/2536045

#SPJ2

What is required in order to melt a network solid

Answers

Answer: High Bond Dissociation Energy

Explanation: A network solid refers to a solid compound (chemical compound) in which the atoms within the compound are bonded to each other by the covalent bond, maintaining a network of strong bonding. Covalent bonding is the strongest of all the bonding types.

In order to break a compound made up of covalent bond, a huge amount of energy is required which is known as the bond dissociation energy. This energy required to break the bond depends upon the strength of the covalent bond between the atoms.

Final answer:

Melting a network solid requires supplying enough energy to overcome the strong bonds within the solid.

Explanation:

In order to melt a network solid, such as a metal or covalent network solid, a sufficient amount of thermal energy is required to overcome the strong bonds within the solid. The melting point of a network solid is typically high due to the strength of these bonds. For example, in metals, the metallic bonds between the positively charged metal ions and the delocalized electrons require a lot of energy to break.

Another example is diamond, a covalent network solid made up of carbon atoms. Each carbon atom forms strong covalent bonds with four other carbon atoms, resulting in a rigid lattice structure. Melting diamond requires breaking these strong covalent bonds. This is why diamond has a high melting point.

Overall, the key requirement for melting a network solid is supplying enough energy to overcome the strong bonds within the solid.

Learn more about Melting network solids here:

https://brainly.com/question/11549004

#SPJ6

What is another factor that might affect us besides genes that can define our traits?

Answers

Actually there are a lot of external factors which can affect our personal traits. Some examples would be the type of environment we are living in, the kind of upbringing that we have, the social economic status of the community, or the type of friends.

Beside genes, two other factors that can have influence on our traits are NUTRITION AND ENVIRONMENT. 
Traits refers to different forms of characters that is found in a living organisms 
The quality of food that a man eats and the kind of environment in which he lives have significant impact on his traits.

What is the role of the prefrontal cortex?

Answers

This brain region has been implicated in planning complex cognitive behavior, personality expression, decision making, and moderating social behavior.

A client is receiving warfarin for a pulmonary embolism. which drug is often contraindicated when taking warfarin?

Answers

Absolute contraindications to warfarin include: large esophageal varices within 72 hours of major surgery a platelet count less than 50 x 109/cu.mm which constitutes significant thrombocytopenia hypersensitivity to the drug, such as skin ischemic necrosis or priapism clinically significant bleeding condition – reassess risks after three months pregnancy and within 48 hours of delivery because of its known teratogenicity, as well as its capacity to induce spontaneous abortion and fetal/perinatal bleeding coagulation defects at baseline such that the INR is over 1.5 decompensated liver disease

What was Ventor's contribution to science?

Answers

the invention of a synthetic cell

Answer:

He was able to create the synthetic cell.

Explanation:

Craig Venter was the scientist capable of synthesizing the complete genome of a bacterium and using that genome to create a synthetic cell. This creation is an innovative step for science, as it allows other studies to be established to test the possibility of artificially creating life.

In addition, the synthetic cell opened the way for the execution of research that can create microorganisms useful and beneficial to our environment and life in general.

The interaction between bees and sunflowers is an example of

Answers

is an example of Mutualism 

What does hydrophilic mean?
a) water-hating
b) dehydrated
c) nonpolar
d) water-loving

Answers

i think it is water-loving

It would be D. water loving, hydrophilic things have a tendency to mix well with water. Anything that is hydrophilic is the complete opposite of anything hydrophobic.

Is it true that bedrock can eventually become soil sediment?

Answers

yes it is true because after many years of water or wind eroding away at the rock will cause it to break up into tiny pieces

The ________ plexuses are located deep on each side of the neck.

Answers

The brachial plexuses are located deep on each side of the neck. The brachial plexuses are a grid of nerve fibers extend from the spinal cord and they pass through the basal region of the neck on to the armpits. They supply nerves to the upper limbs of the body.

Your city announces plans to decrease the use of fossil fuels and increase the use of clean energy sources. It plans to build a wind farm to provide electricity to homes. It will also offer financial assistance to install solar panels on houses. There is a town meeting to answer questions about the plan. If you went to this town meeting, what questions would you ask? Come up with at least five questions. Consider both the advantages and challenges of each energy source as you develop your questions

Answers

The questions should involve mostly concerns related to the new energy type (clean energy source) and the abandoning of the old energy type (fossil fuels).
5 example questions:

1. Where will the funds for the development of the renewable energy stations come from? How will it impact the families' budget? (Clean energy sources have a high development cost)

2. What will be the backup plans for when there isn't enough energy produced because of weather variability? (Clean energy sources are dependant of the weather and other climate fluctuations.)

3. Where would the wind farm be built? Will we have enough space for all the city's energy demands? (Clean energy sources occupy very large areas when energy is needed in large scales.)

4. Will this clean energy sources be efficient for the city's energy demands as fossil fuels might've been until now? (Fossil fuels can be used in low quantities to originate large amounts of energy. Efficiency.)

5. How will the energy from the clean energy sources get to the houses and other places? (Fossil fuels are very easy to take anywhere and easy to transport.)

Answer:By how much can CO2 emissions be reduced?

How much is it going to cost the city to install the wind farms?

Will families have to pay for part of the wind farms?

What is the out-of-pocket cost of installing solar panels on a house after the assistance has been granted?

Are there any yearly operating costs to use solar panels?

How reliable is solar energy in this area? In an average year, how many months can solar energy be used?

Do we have a backup source of energy if the wind farm or solar panels don’t generate enough electricity?

Explanation:

The higher coal reserves in Asia and Oceania are most likely the result of

Answers

The higher coal reserves in Asia and Oceania are most likely the result of unevenly distributed, geological processes.

The higher coal reserves in Asia and Oceania are most likely the result of Geological processes.

We know the like other material resources and reserves, the world's coal reserves are unevenly distributed in the world and the higher coal reserves are in Asia and Oceania. This is because of geological processes.

Other Questions
Which of the following statements must be true about a rectangle? Choose all answers that apply: Choose all answers that apply: A It has four sides of equal length. B It has four right angles. C It has two pairs of parallel opposite sides. What is the 250th term of this sequence. Please explain. 4, 9,14,19,24 Adenosine triphosphate (ATP) molecules are used for the synthesis of a large number of biomolecules. Which two actions happen when bonds in ATP molecules are broken The _____ cartilage of the larynx forms the laryngeal prominence The mail classification used to send most medical office mail is: Is 35 ,000.00 in the 30,000.00 to 40,000.00 range? 7/8(3248x)+36=2/3(33x18)10x What is the volume of a sugar cube that measure 1cm on each side? what is the cross-sectional area of the cube? the total surface area? Which of the original states were landed states What is the function of dna polymerase iii? select one:a. to unwind the dna helix during replicationb. to seal together the broken ends of dna strandsc. to add nucleotides to the 3' end of a growing dna strandd. to degrade damaged dna molecules? What is the justification for each step in solving the inequality?2(x+1)3x+82(x+1)3x+8Select from the drop-down menus to correctly justify each step.2(x+1)3x+82(x+1)3x+8:Given2x23x+82x23x+8:2x3x+102x3x+10 :5x105x10 :x2x2: What are the properties of ionic compounds? Which best describes when our scientific body of knowledge was developed? A.It was developed in ancient times. B.It was developed in the 20th century. C.It was developed by scientists throughout history. D.It was developed in the last 300 years. What strategy did Carrie chapman Catt employ to promote women's suffrage?A) a letter-writing campaign to every member of congress from every stateB) a national demonstration of strength in the 4th of JulyC) an emphasis on achieving suffrage in her home state Iowa firstD) a flexible state-by-state strategy Read this excerpt from The Importance of Being Earnest by Oscar Wilde and complete the sentences that follow.ALGERNON: Good heavens! Is marriage so demoralising as that?LANE: I believe it is a very pleasant state, sir. I have had very little experience of it myself up to the present. I have only been married once. That was in consequence of a misunderstanding between myself and a young person.ALGERNON (Languidly.): I dont know that I am much interested in your family life, Lane.LANE: No, sir; it is not a very interesting subject. I never think of it myself.ALGERNON: Very natural, I am sure. That will do, Lane, thank you.LANE: Thank you, sir. (Lane goes out.)ALGERNON: Lanes views on marriage seem somewhat lax. Really, if the lower orders dont set us a good example, what on earth is the use of them? They seem, as a class, to have absolutely no sense of moral responsibility.Algernon believes that the lower classes should 1.__________the upper classes, yet he labels them as lacking 2.____________.For number 1 choicesa. learn fromb. educated likec. set an example ford. respectFor number 2 choicesa. moral responsibilityb. basic lifestyle rulesc. understanding of moralityd. concern for their employers We can become biased by our experiences to prefer certain operators when solving a problem. this is referred to as a(n) _____ effect. describe some of the main issues that involve our environment, and provide example of how these issues affect our environment Is it easy or difficult for jem and scout to change their apparent misconceptions about boo? what is meant by the phrase "the graying of america" 2.Which words in the sentence are the adverb phrase? Mechanical movable type printing was invented by Johannes Gutenberg.A.movable typeB.type printingC.was inventedD.by Johannes Gutenberg Steam Workshop Downloader