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Fudgin [204]
2 years ago
7

Oxygen is essential in cellular respiration. What is the role of oxygen in the electron transport chain?

Biology
1 answer:
Elan Coil [88]2 years ago
7 0
It serves as the final acceptor.
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The cell membrane regulates what enters and leaves the cell, only allowing
natima [27]

Answer:

A)selective permeability

Explanation:

it allows for it to choose ,small particles easily enter and leave the cell unlike large particles

3 0
2 years ago
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In science, a hypothesis must be a. correct. b. manipulated. c. controlled. d. testable.
Savatey [412]
Answer is D testable
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2 years ago
1. In the process of (selective breeding / natural selection/hybridization/
DerKrebs [107]

Answer:

selective breeding; biotechnology

Explanation:

Selective breeding is a type of artificial selection that consists of crossing plants/animals with desirable and heritable phenotypic traits in order to increase the frequency of such traits in progeny. Selective breeding can be considered as one of the first biotechnological techniques applied by humans. In the past, the selective breeding technique has allowed obtaining domesticated animals (e.g., dogs from wild wolves) and domesticated crops from their wild ancestors (e.g., maize from its wild ancestor teosinte).

7 0
3 years ago
What happens to the water in a poolon a hot,sunny day ?​
Keith_Richards [23]

Answer:

I'm assuming you meant pool instead of poolon, i'll take it as a grammatical error. Anyhow, the water in a pool on sunny days tend to have less chlorination then on regular days. This is because chlorine forms hypochlorite ions in the water, and these are broken down by the ultraviolet light from the sun. Rainy or shiny, the weather is always affecting the chemistry in your pool.

Now, if you want to get more complicated into it, you can add a stabilizer into the pool. The common one safely used in pools is cyanuric acid. This almost completley prevents all de-chloronification.

I hope this information was of any use to you.

8 0
3 years ago
A sorting device that is useful in classifying by observation is a _____. dichotomy wedge taxon key
baherus [9]
<h3><u>Answer</u>;</h3>

Key

A sorting device that is useful in classifying by observation is a <u>key</u>.

<h3><u>Explanation</u>;</h3>
  • <em><u>Classification key or taxonomic key is a device that is used by scientists to identify unknown organisms. </u></em>
  • They are constructed so that the user gets a series of choices about the characteristics of the unknown organisms.Thus, by making the correct choice at each step, one is led to the identity of the specimen.
  • Therefore<u><em>, keys can be used to identify a living organism or determine which group it belongs to</em></u> by answering questions on the key about characteristics of living things.
5 0
3 years ago
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