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zheka24 [161]
2 years ago
6

Evaluate hoe the heart can be compored to a mechanical pump

Biology
1 answer:
Mumz [18]2 years ago
5 0
The main way in which the heart can be compared to a mechanical pump is that both of these things push liquid (blood in the case of the heart) through pipes (arteries in the case of the heart). 
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What sequence of amino acids would be coded by the following set of nucleotides?
juin [17]
The answer is C as the genetic correspond with the order of the nucleotides
8 0
3 years ago
After reading the paragraphs below, answer the questions that follow.
julsineya [31]

The evolution of H. floresiensis is an example of island dwarfism.

Explanation:

H. floresiensis is a species of hominid. It differs significantly than the other hominid species in size though, as it appears to be a dwarfed version of its ancestors and close relatives. Its alleged ancestor is literary twice taller, which brings in the question as to what has triggered such an evolutionary adaptation.

This hominid species lived only on a relatively small island, in isolation. The resources are very limited, and the climate is warm and humid all year around. As seen in many species of animals, when individuals get into such an environment, they tend to experience either island dwarfism, or island gigantism. The island dwarfism tends to be common among large and medium sized species, while the island gigantism tends to be more common among the small species.

When the ancestors of H. floresiensis ended up in this environment, it was advantageous for them to smaller. The reason for that is that smaller bodies require less nutrition, and are also producing less heat.

Learn more about the effects an island has on the animals brainly.com/question/12372014

#learnwithBrainly

7 0
3 years ago
Cereals and legumes are complementary in the diet because Group of answer choices Cereals counteract the antinutritional factors
rusak2 [61]

Answer:

A diet combining legumes and cereals will have a good balance of essential amino acids

Explanation:

Cereals are grains that are rich in vitamins, carbohydrates, protein and other essential nutrients, they include wheat, rice, sorghum etc. Legumes include a wide range of seeds, fruits, nuts, vegetables that are rich in proteins, carbohydrates and other nutrients, examples include peas, beans, lentils etc.

Cereals and legumes are referred to as staple foods, they are usually used to complement each other because combining them will result in a good balance of essential amino acids. In cereals, lysine is a limiting amino acid but is usually in high amounts in legumes. However, in legumes cysteine, trypthophan and methionine are the limiting amino acids but are found in cereals. Therefore, this makes legumes and cereals complementary in the diet as it significantly increases the protein quality of the diet.

4 0
3 years ago
What is the name of the network of sugar molecules cross linked by polypeptides that encloses the entire Eubacteria?
AlekseyPX
Glycosoglycan I think
7 0
3 years ago
Enzymes can be denatured unfolded by what environmental factors
erastova [34]

Enzymes can be denatured unfolded by heat or chemicals.

<h3>What are enzymes?</h3>

Enzymes are proteins that are found in living organisms which are able to increase the rate of chemical reaction and remains unchanged at the end of the reaction.

The factors that can denature enzymes include heat and chemicals. This is because:

  • Higher temperatures disrupt the shape of the active site, which will reduce its activity, or prevent it from working. When the enzyme loses its shape, it is said to have been denatured.

  • These environmental factors can alter the pH level of the enzyme.

Therefore, for an enzyme to perform its functions, the external factors that affects it's activities must be normal and favorable.

Learn more about enzymes here:

brainly.com/question/19423601

#SPJ1

3 0
1 year ago
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