Answer:
natural selection
Explanation:
There are many processes through which evolution can occur like migration, mutation, genetic drift and natural selection. However, one of the most important triggering factor for evolution is natural selection .
What is natural selection:
In very simple words it can be considered as the process through which organisms that are better able to adapt to their surrounding environmental conditions survive and thrive, thereby they reproduce and transfer their characteristics in offspring, but those that have less ability to adapt to environmental conditions, tend to become less in number and ultimately eliminate.
How natural selection leads to evolution:
Now to understand how natural selection leads to evolution, we will take example of a population of beetles, some are brown and some are green in color. Now environment has limited capacity and it cannot support the survival of each and every population.
Here what happens is the green beetles are vulnerable to attack by birds because their color is visible to birds but brown beetles are less visible. What will happen that green beetles will be all eaten by birds and brown will keep surviving.
Now years later, beetles will have only brown color because evolution occurred and only fittest ones survive.
This is how natural selection leads to evolution.
Hope it helps!
______ is a nonliving part of an ecosystem that gives plants the energy they need to make food. A) sunlight B) a germ C) wind D) oxygen gas
The answer is: A) sunlight.
Which of the following is not an option for solving the world water crisis?
a.
desalination
b.
finding new sources of freshwater
c.
reducing overconsumption
d.
wastewater treatment plants
Please select the best answer from the choices provided
A
B
C
D
Mark this and return Save and Exit Next
Would the answer be A?
Which of the following is the role of rough ER
The rough ER is involved with protein synthesis. It helps to produce proteins and help them fold properly.
What is the junction between a nerve cell and another cell called: axon,synapse, dendrite,none of the above
its called a synapse
Explain how the processes of aerobic cellular respiration and photosynthesis are related to one another.
During photosynthesis, the plant needs carbon dioxide and water-- both of which are released into the air during respiration, during respiration, the plant needs oxygen and glucose, which are both produced through photosynthesis
OLD COWS GO
OXYGEN/CARBON/GLUCOSE
Which matter exists in the plasma state?
A. Sun
B. flour
C. water vapor
D. carbon dioxide
The sun exists in the plasma state.
You are welcome. Happy to help. :)
Which is a difference between bacteria and viruses that show that bacteria are living organisms and viruses are not
Answer:
viruses have a life cycle. They are formed in a host cell, then they infect another host cell which produces more of the virus. Viruses are not living because they are not made of cells and require another organism to reproduce. Bacteria are living organisms. They reproduce on their own without a partner. They use energy and they respond to their environment.
Explanation:
The benthic zone can be a challenging place for photosynthetic species to live because
My answer will be because, being located in such deep waters, it is difficult for them to receive sunlight and therefore start the development process. Only those species located in shallow benthic areas, such as seaweed and filamentous, can perform this process.
Play new sunlight to produce ATP during photosynthesis. how do plants produce ATP when the sun is not out?
A.plants are secondary consumers
B. Plants also use cellular respiration
C.plants extract ATP from the stars
D.plants are weak in the dark
The answer is; B
Cellular respiration occurs throughout the day in plants. It is during cellular respiration (breakdown of sugars made from photosynthesis) that ATPs are formed. The process of photosynthesis (that make the carbohydrates used in cellular respiration) process is what is government by the presence of sunlight.
Answer:i would also pick B ,cellular respiration
Explanation:
This abnormality is most likely the result of
1. circulation
2. competition
3. mutation
4. respiration
3 mutation. Mutation is when a gene is changed with no apparent cause mutation is your answer :}
An genetic abnormality without passing on from ancestor can occur only by one process called mutation.
Reputake means that:
Reputake refers to the process in the brain of neurons to retrieve chemicals that were not received by the next neuron.
What are the dark areas on the surface of the sun
They are called the Coronal Holes.
Close up, you'll see that a sunspot has a central dark area—called the umbra, which appears dark because it's cooler than the rest of the Sun's surface
The gene for black fur (B) is dominant over the gene for white fur (b) in mice. A homozygous dominant female and a heterozygous male produce 200 offspring during their lifetime. Approximately how many offspring would be expected to be homozygous dominant?
A
25
B
50
C
100
D
200
Homozygous would be BB and heterozygous would be Bb.
Knowing this we can put the info into a punnet square (pic is attached of mine)
As a result we see only half of them would be homozygous dominant, and half of 200 is 100.
So, the answer is C. 100
I hope that helps u!!
Only 10 percent of the energy stored in an organism can be passed on to the next trophic level. of the remaining energy, some is used for the organisms life processes and the rest is...
The rest is eliminated as heat.
Answer:
the rest is eliminated as heat.
Explanation:
We can see that energy is passed to each organism in the food chain in a unidirectional way, always following the producer → decomposer direction. It is important to note that less energy is spent at each trophic level. Normally, only 5% to 10% of energy is passed to the next trophic level, and this phenomenon is called ecological efficiency. Given this low amount of transferable energy, a food chain hardly has more than five trophic levels. Most of the energy stored by the body at a trophic level is used in the body's metabolic processes, in addition, a part of the energy is eliminated in the form of heat.
I'm usually really good in bio but I can't get this question.. I'm so confused.. Help plsss
Answer:Brainly Ginny character avatar
Hi again!
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17. The graph below shows the effect of
temperature on the relative rate of
action of enzyme X on a protein.
10 20 30 40 50 60 70 80
Temperature (°C)
Which change we not affect the
relative rate of a Qenzyme X?
(1) the addition of cold water when
the reaction is at 50°C
(2) an increase in temperature from
70°C to 80°C
(3) the removal of the protein when
the reaction is at 30°C
(4) a decrease in temperature from
40°C to 10°C
17
Brainly Ginny character avatar
AI-generated answer
The graph shows the effect of temperature on the relative rate of action of enzyme X on a protein. To determine which change would not affect the relative rate of enzyme X, let's analyze each option:
(1) The addition of cold water when the reaction is at 50°C:
Adding cold water would lower the temperature, which could potentially decrease the rate of enzyme activity. Therefore, this change would affect the relative rate of enzyme X.
(2) An increase in temperature from 70°C to 80°C:
Increasing the temperature typically increases the rate of enzyme activity. So, this change would likely affect the relative rate of enzyme X.
(3) The removal of the protein when the reaction is at 30°C:
Removing the protein would eliminate the substrate for enzyme X to act upon. Without the substrate, the enzyme cannot catalyze the reaction, resulting in no rate of enzyme activity. Therefore, this change would affect the relative rate of enzyme X.
(4) A decrease in temperature from 40°C to 10°C:
Lowering the temperature usually decreases the rate of enzyme activity. So, this change would likely affect the relative rate of enzyme X.
Based on the analysis, option (3) - the removal of the protein when the reaction is at 30°C - would not affect the relative rate of enzyme X. Removing the protein would stop the reaction entirely, regardless of the temperature.
Explanation: In summary, option (3) would not affect the relative rate of enzyme X.
-thankyou-
--hope it helped you--
Based on the image given, which shows a graph of the effect of temperature on the relative rate of action of enzyme X on a protein, the change that would not affect the relative rate of action of enzyme X is:
(2) An increase in temperature from 70°C to 80°C.
Here's why:
The graph shows that the relative rate of action of enzyme X increases as the temperature increases up to a certain point, which is around 70°C in this case. This is because higher temperatures provide more kinetic energy to the enzyme molecules, making them more likely to collide with substrate molecules and form enzyme-substrate complexes.
However, once the temperature reaches a certain optimal point, further increases in temperature can start to denature the enzyme. Denaturation is the process by which the enzyme's three-dimensional structure unfolds and loses its function. This is because high temperatures can break the bonds that hold the enzyme's structure together.
In the graph, we can see that the relative rate of action of enzyme X starts to decrease after 70°C. This suggests that enzyme X is starting to denature at this temperature.
Therefore, an increase in temperature from 70°C to 80°C would likely cause further denaturation of enzyme X, leading to a decrease in its relative rate of action.
Here's a summary of the changes and their effects on the relative rate of action of enzyme X:
Shown in the diagram.
Complete Question:
what is the effect of social facilitation on those performing a difficult task?
Audience effect is for people to perform differently when in the presence of others than when alone compared to their performance when alone when in the presence of others they perform better on simple or well-rehearsed tasks and worse on complex or new ones
Answer:
Social facilitation help people especially those who perform a difficult task by enhancing their skill and efficiency when they work in a group rather when they work individually.
Explanation:
Social facilitation is the continuous process of improvement in an individual when he/she works in a group or team. Working with others help an individual to learn and improve himself/herself which is otherwise not possible if he/she works alone.
Continuous improvement in skill sets help an individual to take up difficult task more rigorously and efficiently.
Hence, Social facilitation help people especially those who perform a difficult task by enhancing their skill and efficiency when they work in a group rather when they work individually.
what is the function of the optic chiasm?
It helps with the optic nerve, if you give me options i can help answer. Sorry if I didnt help :)
Final answer:
The optic chiasm is where the optic nerves from each eye meet and cross, allowing for the correct sorting of visual information to the opposite hemispheres of the brain, which is crucial for coordinated binocular vision and peripheral field perception.
Explanation:
The optic chiasm is a crucial neurological structure responsible for the proper processing of visual information. The optic nerves from both eyes enter the brain and intersect at the optic chiasm, an X-shaped structure located just beneath the cerebral cortex. This arrangement is pivotal for the sorting of visual information. At the optic chiasm, the nerve fibers carrying information from the right half of the visual field of both eyes project to the left side of the brain, while fibers carrying information from the left visual field project to the right side. This crossing of fibers allows for the coordination of visual information and is essential for binocular vision. Moreover, this decussation of nerve fibers is imperative for processing peripheral vision, as the medial retinae—which provide the peripheral visual input—cross over at this point.
Any damage to the optic chiasm can lead to deficits in visual field perception, such as loss of peripheral vision, which could be caused by a pituitary tumor pressing on the chiasm. Understanding the function and the potential implications of damage to the optic chiasm can thus be critical for diagnosing visual pathologies.
HELP!! I'M SOBBING!
Water is important to living creatures. They need water to move nutrients into cells and to help them move wastes and toxins out of the body.
How do living animals obtain their water?
A) bathing
B) drinking
C) rain
D) swimming
It is B. Living animals obtain their water from drinking.
What branch of science would a scientist be interested in if he or she studied animals that live in the water?
Answer:life science
Explanation:
Why is the sky orange and red at sunrise and sunset?
A. Gases absorb orange and red light.
B. Blue wavelengths are absorbed by the atmosphere.
C. The thick atmosphere scatters all but longer wavelengths.
D. Only short wavelengths are radiated from the Sun in the morning and evening.
Answer:
The correct answer is option C) The thick atmosphere scatters all but longer wavelengths
Explanation:
The sky is orange and red at sunrise at sunset because The thick atmosphere scatters all but longer wavelengths.
The visible range of light, red light waves are scattered the least by atmospheric gas molecules. Therefore at sunrise and sunset, the rays of longer wavelength give the effect of red light texture in the sky while other smaller wavelengths scatter away.
C is right i got a 100 on my quiz <3
how does the lens of a light microscope work
Light from a mirror is reflected up through the specimen, or object to be viewed, into the powerful objective lens, which produces the first magnification. The image produced by the objective lens is then magnified again by the eyepiece lens, which acts as a simple magnifying glass.
Answer:
Reflection and magnification
Explanation:
A light microscope reflects and enlarges an image from a specimen. The specimen can be anything. It can be a plant cell, animal cell or in most advanced cases, small organisms such as viruses.
The light microscope depends on light. The light can be artificial or electric light. The light is shot through the specimen. It is reflected on the primary lenses. This light is reflected and magnified on the secondary lenses. This produces a magnified image.
Two species of shorebirds are both adapted to live in coastal marshes. One species outcompetes the other for the small fish that live within one niche in the marsh. What is likely to happen to the other species of birds?
Answer:
The population of other specie of birds will decline or other specie of birds will find some alternate source of food to survive.
Explanation:
According to the Competitive exclusion principle, which is also known as Gause's Law, two specie living in the same niche and feeding on the same resource cannot co-exist stably.
As we have well studied the theory of natural selection which states that only those organisms survive which have better tendency to compete for food and adapt to the environmental conditions.
Coming towards the question, what wi ll happen when One species outcompetes the other for the small fish , the other specie will not get enough food and will start to die or decline in population. Eventually either other specie needs to find another alternative food source for itself or migrate at some other location where there is less competition otherwise it will just not exist anymore at that niche.
Hope it help!
what is the difference between variation and adaptation?
An adaptation is an inherited trait that increases an organism's chance of surviving and reproducing in its environment.
An adaptation is an inherited trait that increases an organism's chance of surviving and reproducing in its environment.
Thus, A heritable behavioral, morphological, or physiological characteristic that has developed through natural selection that preserves or improves an organism's fitness under a certain set of environmental conditions is referred to as adaptation.
Biological fitness, which controls the rate of evolution as indicated by changes in gene frequencies, is related to adaptation. When two or more species develop adaptations that interact with those of the other species, like with flowering plants and pollinating insects, they frequently co-adapt and co-evolve.
Features that have developed for one use may be coopted for another, as was the case with dinosaurs' insulating feathers and adaptation.
Thus, An adaptation is an inherited trait that increases an organism's chance of surviving and reproducing in its environment.
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Which statement describes potassium-argon dating?
Potassium-argon dating is a method used by geologists to date rocks and minerals. It is based on the decay of isotope potassium-40 to argon-40. It is accurate due to the slow decay rate of K-40 which allows dating of very old materials.
Explanation:Potassium-argon dating is a method used by geologists and archaeologists to date rocks and minerals. It is based on the decay of the isotope potassium-40 (K-40) to argon-40 (Ar-40). The time of decay is set to be the ‘age’ of the rock or mineral. The accuracy of this method is high due to the slow decay rate of K-40, which makes it suitable for dating materials that are millions or even billions of years old.
In this method, the sample is first liquified in a vacuum to drive out any argon gas. It is then reheated in a vacuum and the gas that is given off is measured to determine the amount of Ar-40. The remaining solid sample is also analyzed to determine the amount of K-40. The date of the sample is then calculated based on the ratio of these two isotopes.
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On steep slopes of mountains___ helps reduce erosion by creating level areas for crops?
Q: On steep slopes and mountains,____ helps reduce erosion by creating level areas for crops.
A: terracing
Answer: A
Explanation:
Describe how the red crab spider is adapted for its unique method of hunting.
Answer:The red crab spider hunt and feed on insects that are found on the nectar of flowers. The red crab spider is adapted to its unique hunting style in the following ways It can change its color to blend with the environment
The red crab spider is adapted for its unique method of hunting because it hold its prey and inject venom in its body by biting.
How the red crab spider is adapted for its unique method of hunting?Crab spiders capture their prey with their front four legs and bite it in order to inject venom to paralyze their meal. The use of venom allows crab spiders to capture and eat large insects.
So we can conclude that the red crab spider is adapted for its unique method of hunting because it hold its prey and inject venom in its body by biting.
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Help please, thank you, I'm crying for help. :(
It would be A because the ice in the cup is a solid, the melted ice is water which is a liquid, and the boiling water vapor is gas.
The answer is A)
Hope it helps;Pls mark as brainliest answer
What type of cell could have a plasma membrane, mitochondria, ribosomes, a nucleus, a golgi body, and an endoplasmic reticulum, but will not have a cell wall or chloroplasts
ANIMAL CELLS have a plasma membrane, mitochondria, ribosomes, cell nucleus, Golgi apparatus, and endoplasmic reticulum, but they lack cell walls or chloroplasts.
All cells have a plasma membrane that separates the internal cell medium from the surrounding environment.All eukaryotic cells have:
Mitochondria: the energy centres of eukaryotic cellsRibosomes: are organelles where protein synthesis takes place Cell nucleus: contains the genetic material (DNA).Golgi apparatus and endoplasmic reticulum: responsible for synthesizing and processing proteins and lipids.However, only plant cells have cell walls and chloroplasts.In conclusion, ANIMAL CELLS have a plasma membrane, mitochondria, ribosomes, cell nucleus, Golgi apparatus, and endoplasmic reticulum, but they lack cell walls or chloroplasts.
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What are the 2 types of cellular respiration and what makes them different
The two types of cellular respiration are: Aerobic Respiration and Anaerobic Respiration.
The Difference is during aerobic respiration, carbon dioxide, water, and ATP are produced meanwhile, during anaerobic respiration, lactic acid, ethanol, and ATP are produced.
Hoped I helped you out :)
why do plants go through photosynthesis? HELP ASAP!!!!
Final answer:
Plants need to go through photosynthesis to create their own food in the form of glucose using sunlight, carbon dioxide, and water, and to release oxygen as a by-product, essential for the survival of most life forms on Earth.
Explanation:
Plants undergo photosynthesis to produce their own food and supply oxygen to the environment. Photosynthesis is a critical biochemical process that allows plants to harness energy from the sun and convert carbon dioxide and water into glucose (a form of sugar) and oxygen. This process not only provides energy for the plant's own growth and development but also supports life on Earth by producing oxygen for other organisms to breathe and organic compounds that serve as food for many forms of life.
Carbon dioxide, water, and sunlight are the primary ingredients for photosynthesis. During this process, glucose is synthesized, which is vital for the plant's survival and growth. Furthermore, the oxygen released as a by-product of photosynthesis contributes to the oxygen supply in our atmosphere, which is essential for the respiration of almost all living creatures, including humans.
Through photosynthesis, plants are able to fix carbon and play a pivotal role in the carbon cycle. They are autotrophs, meaning they produce organic compounds necessary for their metabolic processes without the need to consume other organisms. This sets the foundation for food chains, as other organisms depend on plants for sustenance.
Without photosynthesis, there would be little oxygen in the air, and the energy flow within ecosystems would cease, leading to dire consequences for all life forms. Hence, the importance of photosynthesis extends far beyond the life of plants and supports the complex web of life on our planet.