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Akimi4 [234]
3 years ago
12

Help me due in a few minutes

Biology
1 answer:
IrinaK [193]3 years ago
7 0

Answer:

1- D (lungs)

2- A (minerals)

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The substances that are present before any chemical reaction are called _________________.
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The answer to your question is D. Reactants
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Considering the body’s organization from atoms to organ systems, in which level of organization are proteins like collagen? Desc
storchak [24]

Answer:

According to the levels of organization in the body, the level of organization in which proteins, like collagen, are found is the molecular level, allowing the structural support and the performance of other essential functions.

Explanation:

Proteins are biological macromolecules, polymers of units called amino acids. These molecules belong to the molecular level of organization in living organisms.

The level of organization where proteins are found allows them:

  • <em>Form an essential part of cells.</em>
  • <em>Contribute to the construction of tissues and organs.</em>
  • <em>Participate in metabolic reactions, as enzymes. </em>
  • <em>Defense of the organism, in the form of antibodies.</em>
  • <em>Regulation of vital functions, forming hormones.</em>

Other functions of proteins are to integrate the cell membranes and perform transport function, to form receptors and to be an energy reserve.

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4 years ago
Review the chart, which shows the population sizes of three African animals in 1990 and in 2000.
iren2701 [21]

The explanation which is best supported by the numbers in the chart is that Lion and cheetah populations compete for the food source of zebras, and lions outcompete cheetahs. Thus, the correct option is A.

<h3>What is Competition in the population?</h3>

Competition in population may be defined as the existence of two or more same or different species that are actively fighting over the same resources and factors that they disseminate.

Competition and predation are the two types of species interaction through which the population of species either increases or decreases.

According to the given chart, it is noticeable that the population drop in predator cheetah and lion populations because of the reduction in zebra lowering population but the in cheetah population is additionally than that of the lion.

Therefore, the correct option for this question is A.

To learn more about Competition, refer to the link:

brainly.com/question/1638475

#SPJ1

4 0
2 years ago
The process of depolarization and repolarization is called the
Lana71 [14]
Depolarization and repolarization are part of the action potential.
C. Action potential
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3 years ago
What does the letter U represent?
s2008m [1.1K]

Answer:

Nitrogen Base

Explanation:

the square is where the bases connect to get different patterns inside your DNA

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