SAMPLE Answer:
Yes because years and years later there are now descendants of the original animals that have evolved and changed to best suit the environment they're living in.
Explanation:
(keep in mind I have no clue if this is right or not, but i used this for my answer on the assignment)
Hawaiian honeycreepers provide STRONG EVIDENCE to support Darwin's theory of evolution by natural selection because different species are adapted to fit different environments.
Hawaiian honeycreepers are endemic species that inhabit the Hawaiian archipelago. In a similar manner to Darwin's finches from the Galapagos archipelago, Hawaiian honeycreeper' species evolved the shape of their beaks to more efficiently eat the nectar of different types of flowers found on each island.The shape of the beak of the Hawaiian honeycreepers fit to the flowers so different bird species can draw nectar more efficiently according to the flowers found on each island.Hawaiian honeycreepers represent an excellent example of evolution by natural selection, where different species inhabiting different islands changed (evolved) to adapt to particular environmental conditions.In conclusion, Hawaiian honeycreepers provide STRONG EVIDENCE to support Darwin's theory of evolution by natural selection because different species are adapted to fit different environments.
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An 11-year-old male is newly diagnosed with type 1 dm. which classic symptoms should the nurse assess the patient for? recurrent infections, visual changes, fatigue, and paresthesias vomiting; abdominal pain; sweet, fruity breath; dehydration; and kussmaul breathing weakness, vomiting, hypotension, and mental confusion polydipsia, polyuria, polyphagia, and weight loss
The correct answer is polydipsia, polyuria, weight loss, and polyphagia.
The classic signs of type I diabetes mellitus comprise polyuria, polydipsia, weight loss, and polyphagia. The recurrent infections and visual changes are the signs of diabetes. Weakness, hypotension, and mental confusion are the signs of hypoglycemia. Abdominal pain, vomiting, and sweet breath are the sign of diabetic ketoacidosis.
What are the two functional groups founWhat are the two functional groups found in every amino acid? A. carbonyl and hydroxyl B. carboxyl and amino C. amino and hydroxyl D. sulfhydryl and carboxyl in every amino acid?
The two functional groups found on every amino acid carboxyl acid and an amine. So the option is B.
Ans.
The amino acids are organic molecules, having two functional groups, a carboxyl group (-COOH) and an amino group (-NH2) along with a side chain (R group) and a hydrogen atom. The amino acids are known as building blocks of protein molecules as join together to make protein.
Two amino acids join together with the help of a peptide bond, formed between carboxyl group of one amino acid and amino group of another amino acid.
Thus, the correct answer is option B). 'carboxyl and amino group.'
what is the general term for any carbohydrate monomers
The general term for any carbohydrate monomer is a monosaccharide.
Ex: glucose and fructose
Answer:
The correct answer is monosaccharide.
Explanation:
The carbohydrates, which are generally known as polysaccharides are formed of monomers known as monosaccharides. The monosaccharides are the basic sugar as it comprises one sugar unit, which cannot be dissociated further into simpler forms. Monosaccharides are the fundamental unit of carbohydrates. They are sweet in taste and are formed of oxygen, carbon, and hydrogen atoms.
To introduce a particular piece of DNA into an animal cell, such as that of a mouse, you would find more probable success with which of the following methods?
A) the shotgun approach
B) electroporation followed by recombination
C) introducing a plasmid into the cell
D) infecting the mouse cell with a Ti plasmid
E) transcription and translation
The correct answer is option B, that is, electroporation succeeded by recombination.
A usual method of presenting exogenous nucleic acids into cells is known as electroporation. In this, an electric voltage potential is used through a biological membrane, ultimately resulting in the formation of conducting hydrophilic pores. The process of electroporation is utilized for transporting or transfecting nucleic acids generally DNA within the cells, to make them articulate genes that would modify the genetic mechanism.
The transfected DNA can get recombined or incorporated into the host genome or can remain in its own composition. Thus, the process of electroporation straightforwardly permits more recombination to take place.
Final answer:
To introduce DNA into an animal cell, electroporation followed by recombination is the most probable successful method, as it creates temporary pores to allow DNA entry and subsequent genomic integration.
Explanation:
To introduce a particular piece of DNA into an animal cell, such as that of a mouse, you would find more probable success with electroporation followed by recombination. This method is suitable for eukaryotic cells like those of mice, which require more invasive techniques for the insertion of foreign DNA compared to prokaryotic cells. Electroporation creates temporary pores in the cell membrane via a brief electric pulse, allowing DNA to be introduced into the cell. Subsequently, recombination allows the foreign DNA to be integrated into the host cell's genome.
Other methods, such as microinjection, may also be used to directly inject DNA into the nucleus of eukaryotic cells. However, techniques like introducing a plasmid are more commonly used for bacterial transformation, and Ti plasmids are typically involved in transforming plant cells, not animal cells. Transcription and translation are processes related to gene expression after the DNA has been successfully inserted into a cell.
A short mRNA sequence is shown in the box below. Determine the DNA sequence from which this mRNA sequence was transcribed.
TAC-AGA-CTA-ACC-ATG
When transcribing DNA sequence from mRNA A is T, U is A, Cis G and G is C
TAC-AGA-CTA-ACC-ATG THIS SHOUD BE THE RIGHT ANSWER I AM 99.99% SURE
please help for brainliest!
Answer:
Commensalism
Explanation:
Commensalism is when one organism benefits and the other doesn't benefit and is also not harmed. The tree is helping the orchid and the orchid isn't benefiting or harming the tree.
This type of membrane transport moves substances against the concentration gradient from an area of low concentration to an area of high concentration using membrane protiens as carriers and requires the input of atp
Its called active transport. We call it active since it requires energy for the transport of molecules against the concentration gradient. ATP must break down to release energy for the process.
Can someone help me answer these? Thanks!
1- Answer : B (AUG AAA CGU CCU)
2- Answer : B (TAC AAA AGA GGG)
3- Answer : C (GGCGATACG)
help i will give you the brainliest!
Which of the following statements are correct about the carbon cycle?
a)Matter and energy are recycled within the carbon cycle.
b)Matter is recycled within the carbon cycle, whereas energy flows through.
c)The carbon cycle includes the processes of mitosis and meiosis.
d)Matter and energy flow through the carbon cycle. Both will eventually be used up.
After glycolysis occuers,the products may enter the krebs cycle.Which major products result from these reactions?
The major products that result from the Krebs cycle are NADH, FADH and ATP in that order.
Where do clouds form? Check all that apply. at the ground in the upper atmosphere near the Earth’s surface where the air has very low humidity where the atmosphere contains few particles
Clouds form when air reaches the dew point and condenses around particles in the atmosphere; they can form near the Earth's surface or in the upper atmosphere but not in areas with low humidity or few particles.
When the air in the atmosphere reaches the dew point and contains enough particles like dust or smoke to provide condensation nuclei, condensation occurs and clouds are formed. Clouds that form at the ground level are known as fog. It is incorrect that clouds form where the air has very low humidity because clouds require a certain level of humidity to maintain the water droplets or ice crystals that make up the cloud. Furthermore, without particles in the air, there would be nothing for the water vapor to condense around, so clouds typically do not form in areas with very few particles.
During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. Most of the trees on the island are now short trees and produce seeds that grow into short trees. What concept is shown in this example?
Question 5 options:
Natural Selection
Artificial Selection
Genetic Engineering
Gene Splicing
The correct answer is option A, Natural Selection
In all the three options namely Artificial Selection , Genetic Engineering and Gene Splicing there is involvement of human beings in gene modification. While in the case of natural selection genetic modification occurs through the evolutionary process through several hierarchical orders.
What would the result be when identifying a fish with a single dorsal fin, no fin on its back near the tail, and a tail that is asymmetrical?
The characteristics show that the given fish is a sturgeon.
Sturgeon is a general name for the twenty-seven fish species belonging to the family Acipenseridae. Their origination dates back to the Triassic, that is, about 245 to 208 mya.
The sturgeons are late developing, and long-lived fishes with different features like a heterocercal caudal fin identical to that of sharks, and an elongated spindle-like body, which is scaleless, smooth-skinned, and armored with five lateral rows of bony plates known as scutes.
Answer:
It has a single fin on its back near its tail.
It is covered in spots.
It has a forked tail fin.
Explanation:
edge 2020-2021
Please help!!!! Will mark brainliest! I am being timed!!!
Which tools do meteorologists use to help create weather forecasts? Check all that apply.
-guesses
-computer models
-weather service maps
-data from instruments
-personal observations
Answer:
computer models, weather service maps, data from instruments, and personal observations
Explanation:
Meteorology is the interdisciplinary science of the physics of the atmosphere, which studies the state of time, the atmospheric environment, the phenomena produced and the laws that govern it.
In general, each science has its own laboratory equipment and instruments. However, meteorology is a short discipline in laboratory equipment and wide in observation equipment in the field. In some ways this may sound good, but in reality it can cause simple observations to drift towards a wrong assertion. In the atmosphere, there are many objects or qualities that can be measured. The rain, for example, has been observed anywhere and always, being one of the first phenomena to be measured historically.
What is the mutation caused by the addition of a nucleotide to an already existing gene sequence called?
A.
deletion
B.
duplication
C.
insertion
D.
inversion
Answer:
C.
insertion
Explanation:
What is humus?
A) A term to describe soil that is not fertile.
B) The broken down remains of plants and animals.
C) A type of soil that cannot retain water for long.
D) A mixture of man-made articles such as plastic and glass.
Answer:
b) The broken down remains of plants and animals.
Explanation:
Humus is the broken down remains of plants & animals and it is rich in nutrients. Thus, option (b) is the correct answer.
If all disease is eradicated and food supply exceeds demand indefinitely, the human population on the planet Earth will NOT continue to grow at an exponential rate indefinitely because space will become a limiting factor. all of these the few humans left will war and kill each other. a new disease organism will evolve. density-independent factors will always remove individuals.
Fill in the blank 1. _______ digestion occurs in the small intestine through the action of enzymes. 2. Urea, excess water, and other waste materials are eliminated in a water fluid called ___________. 3. __________ can cause infections by injecting DNA or RNA into hosts. 4. The human immune system produces ___________ in response to a vaccine, which later can bind to and destroy a pathogen if it invades. 5. _______________ are structures that link bone to bone at a joint 6. In the heart, blood flows from the right atrium to the right ventricle, where it is pumped to the _______________
The words I can use are:
lymphocytes
gliding
pivot
gas
urine
absorption
dermis
fulcrum
lungs
chemical
viruses
capillary
vertebrae
esophagus
tendons
antibodies
synapses
ligaments
kidneys
pathogens
Blank 1 is protein digestion
Blank 2 is urine
Blank 3 is Viruses
Blank 4 is pathogens
Blank 5 Achilles tendon
Blank 6 atrium
please help me on this
Dad: TtBb
Mom: ttbb
You have to use distribution for dihybrid crosses. Meaning, the first allele of each trait has a equal chance of being paired with the other allele of the other trait. So for example with Dad, I will number the traits:
T(1)t(2)B(3)b(4)
To set up the possibilities from Dad, it would be 13, 14, 23, 24: TB, Tb, tB, tb. Same idea goes for Mom, except since all alleles are the same, you only need to make one column for Mom, since if you did all 4, the other 3 would just be repeats of the 1.
Cross:
tb
TB TtBb
Tb Ttbb
tB ttBb
tb ttbb
The phenotypic ratio is 1 Tall Brown: 1 Tall Blue: 1 Short Brown: 1 Short Blue
Explain why baleen whales are more efficient feeders in the ocean food web.
Answer:
Baleen whales, are largest mammals on earth. These whales use specialized structures which is known as baleen to capture it's prey. A baleen functions as a sieve to filter out prey from water. Numerous baleens are present in the upper jaw of the whale. Baleens are flexible structural appendages made from the protein keratin present in the place of tooth in toothless baleen whales. A baleen whale opens it's mouth to consume water from the ocean. This water contains large amount of prey population. It then partly shuts the mouth and presses the tongue against the upper jaw. The water passes off from the sideways by baleens. The prey is then swallowed by the whale. A baleen whale is able to capture zooplanktons such as krills and copepods and small fishes from the food chain because of these specialized structures.
A baleen whale does not hunt for it's prey as it exhibit specialized structures to capture the prey. Therefore, it is the most efficient feeder in the ocean food web.
please.....please....please...pleaseeeeee help me !!!!!!!! :(
generally the last organism to return to a habitat through succession
a.......die
b.......are tall, strong tress
c.......shrubs
Merry Christmas!
Answer:
C. shrubs
Explanation:
The reason I say this is because the other options don't make sense because are tall strong tress's is a lock of women's a hair and die is not part of succession. Option b is part 2 of the secession stage.
Exposure to asbestos combined with ______ will increase the chance of developing lung cancer.
Exposure of asbestos combined with smoking could dramatically increase the chance of developing lung cancer.
A cross between two plants that have pink flowers produced plants that have red , pink, or white flowers. What is the most likely explanation for these results
That species has genes that yield red, pink or white flowers. The pink gene is dominant. All hybrids contain red/white genes, but they are recessive. Thus, the cross can unite red/white genes in hybrids with no pink, yielding red/white flowers.
The genes of that species can produce flowers that are red, pink, or white. There is a dominant pink gene.
What is the importance of incomplete dominance?It explains how phenotypes from two different alleles can coexist, imperfect dominance has genetic significance.
Mendel also discusses the Law of Dominance, which states that only one allele can be dominant over the other and that it can come from either parent.
Red/white genes are present in all hybrids, although they are recessive. In hybrids without pink, the cross can therefore combine red/white genes to produce red/white flowers.
Both alleles will express equally in the heterozygote because neither is dominant over the other in codominance.
Therefore, incomplete dominance is most likely explanation for these results.
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Can someone please help?
What information does the National Weather Service produce? Check all that apply.
-simple maps
-newspaper maps
-maps with isobars
-maps with isotherms
-weather service maps
Im almost certain that is all of them except for A.
Answer:
The National Weather Service produce the following information:
-maps with isobars
-maps with isotherms
-weather service maps
Explanation:
The National Meteorological Service is one of the six scientific agencies that make up the National Oceanic and Atmospheric Administration (NOAA) of the government of the United States. Its task is to offer "predictions and warnings of meteorological, hydrological and climatic conditions in the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the improvement of the national economy".
A cross-country skier who prefers high elevation but flat terrain is looking for a ski vacation destination.
Which location would be the best destination for the skier?
the Black Hills
the Great Plains
the Bridger Mountains
the Yellowstone Plateau
✿ The Cross-Country Skier prefers High Elevation but Flat Terrain
✿ It means he is looking for Plateau
✿ The Best Destination for the Skier would be : Yellowstone Plateau
A cross-country skier who prefers high elevation but flat terrain is looking for a ski vacation destination,the best destination for the skier, the Yellowstone Plateau.
How do erosion form sand dunes unit test?Waves cause erosion with coastlines and deposit sand take far from the shore. Erosion cause as surface water carrying sediment and the sediment is deposited pass oceans and lakes.
Thus, the Yellowstone Plateau is correct.
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While genes have potential to modify behavior, behavior can also modify genes. How do genes impact this process?A.Genes impact neuron functioning directly.B.Changes made to proteins lead to changes in behavior.C.Neurons are able to impact protein synthesis.D.Genes impact the DNA of a cell, leading to changes in behavior
The correct answer is: B. Changes made to proteins lead to changes in behavior.
Genes do not impact neuron functioning directly, but rather encode proteins that build and control the functioning of the brain through which behavior is expressed. Behavior is influenced by both, inheritance and environment. So, for example, social information (environmental influence) can impact brain gene expression via epigenetic modifications.
How many times more ATP can be formed by an electron transport chain than can be formed by a citric acid cycle?
2
16
32
64
Answer:
B. 16 on E2020
Explanation:
The cross bridge cycle starts when _________. Select the best answer. View Available Hint(s) Select the best answer. ATP binds to troponin and is hydrolyzed to ADP and Pi Ca2+ from the sarcoplasmic reticulum binds to troponin acetylcholine diffuses away from the synaptic cleft Ca2+ is actively transported into the sarcoplasmic reticulum Ca2+ from the sarcoplasmic reticulum binds to tropomyosin
The cross bridge cycle in a muscle contraction begins when calcium ions (Ca2+) bind to the protein troponin. This triggers the exposure of myosin-binding sites on actin, allowing myosin to bind and create cross-bridges, causing contraction. ATP plays a key role in breaking these cross-bridges and re-cocking myosin heads for the next cycle.
Explanation:The cross bridge cycle in a skeletal muscle contraction starts when Ca2+ (calcium ions) from the sarcoplasmic reticulum binds to troponin. This triggers a conformational change in tropomyosin, exposing the myosin-binding sites on the actin filament. This allows myosin heads to bind to these sites, creating cross-bridges. While bound, the myosin heads perform a power stroke, pulling the actin filament towards the center of the sarcomere. An ATP molecule then binds to the myosin head, leading to the detachment of the cross-bridge, and the breakdown of ATP to ADP and Pi, effectively 'recocking' the myosin head, making it ready for a new cycle once more Ca2+ becomes available, and the myosin-binding sites on actin get exposed again.
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What do you do if you're stuck in a rip current?
Float or tread water until you can swim out of the current. Your instincts may be to fight the current and swim directly back to shore. However, that’s the most dangerous thing you could do. Instead, focus on keeping your head above water until the current has weakened and you're able to swim through its boundary.
Most rip currents weaken about 50 to 100 yards (46 to 91 m) from shore. Once the current has begun to subside, you’ll have an easier time swimming out of it.
Even the strongest swimmers can’t fight a rip current. Trying to swim against it can lead to exhaustion and drowning.
Remain calm. If you get caught in a rip current, don't panic. You'll have a better shot at getting out of the situation if you stay calm. Keeping your cool can help you conserve energy and think clearly.
Tips for Staying Calm
Try to control your breathing. Keep your head above the water and take slow, deep breaths.
Think positive, calming thoughts. Tell yourself “Don’t panic. You can make it out of this rip current. Don’t fight it, conserve your energy, and look for breaking waves at the edge of the current.”
Remind yourself that a rip current does not drag you underwater. Rip currents only pull you away from the shore. Worrying that the current will pull you underwater could lead to panic.
Call for help if you’re not a strong swimmer. Escape involves floating with the current, then swimming parallel to the shore to cross the current's edge. If you can’t swim, call for help and wave your arms to get the attention of a lifeguard or other people on the beach.
If you know how to swim, you should be able to escape and swim back to shore at an angle away from the current. However, if you have any doubt about your ability to break free of the current, call and wave for help.
If stuck in a rip current, do not swim directly against it. Instead, call for help, swim parallel to the shore to escape the current, then swim back to shore at an angle. If unable to escape, float or tread water until out of the current.
What to Do If You're Stuck in a Rip Current
When caught in a rip current, it's crucial not to panic. Rip currents are powerful, narrow bands of water moving away from the shore. Attempting to swim back to shore directly against a rip current can be extremely exhausting and is not recommended. The following steps should be taken:
Call for help immediately, signaling to lifeguards or bystanders on the shore.
Swim parallel to the beach in order to escape the narrow current.
Once out of the current, swim at an angle away from the current and back toward the shore.
If you're unable to swim out of the rip current, try to float or tread water calmly until you're out of the current, then head back to shore. Awareness and understanding of rip currents are vital for beach safety, and noticing warning signs can prevent such situations.
Darker skin is more prevalent in high-UV areas. Dr. Nina Jablonski proposed a hypothesis to explain the selective pressure for darker skin in these environments. On what evidence did she base this hypothesis? Darker skin is more prevalent in high-UV areas. Dr. Nina Jablonski proposed a hypothesis to explain the selective pressure for darker skin in these environments. On what evidence did she base this hypothesis? the melanin in darkly pigmented skin protects circulating folate from being destroyed by UV radiation, and folate is important in human reproduction the melanin in darkly pigmented skin protects DNA from UV radiation, and UV radiation can cause skin cancer people of African descent all have the same version of the MC1R gene, indicating that this gene was under selection she discovered that people of African descent have less folate circulating in their blood and that folate is important for human reproduction
Dr. Nina Jablonski's hypothesis on the prevalence of darker skin in high-UV areas is based on the protective role of melanin against UV radiation, the importance of folate for human reproduction, and the observation that people of African descent have the same version of the MC1R gene.
Explanation:Dr. Nina Jablonski based her hypothesis regarding the prevalence of darker skin in high-UV areas on several pieces of compelling evidence. Firstly, she noted that the melanin in darkly pigmented skin acts as a protective layer, shielding DNA from harmful UV radiation, which is known to cause skin cancer. Secondly, she found that melanin also plays a crucial role in preserving folate levels in the body, by preventing this essential nutrient from being destroyed by UV radiation.
The importance of folate for human reproduction is well-documented, and its degradation due to UV radiation could potentially lead to a decrease in reproductive success. Lastly, Dr. Jablonski observed a genetic aspect - all individuals of African descent have an identical version of the MC1R gene, which suggests that this gene was under selection pressure.
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