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3 years ago

Please help me:

Biology

2 answers:

Setler [38]3 years ago

6 0

Hey yo!

the anwser is (B)

hope this helps:)

snow_lady [41]3 years ago

4 0

B.The amount of energy at the producer level will be more than the primary-consumer level but less than the secondary-consumer level.

AND

D.The amount of energy at the primary-consumer level will be more than the secondary-consumer level but less than the producer level.

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What are three main sources of genetic variation in organisms?

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1- Mutation

2- Gene Flow

3- Sexual reproduction

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3 years ago

When there is not enough oxygen, what is glucose converted to in animal cells?

blondinia [14]

Answer:

In anaerobic respiration, which occurs during fermentation, less energy is extracted — only two ATP molecules per glucose molecule — because the products of the process, such as ethanol or lactic acid, contain more energy than does carbon dioxide, the product of aerobic respiration

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3 years ago

What does this mean?

saw5 [17]

What does what mean?

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3 years ago

Cladograms (a type of phylogenetic tree) constructed from evidence from molecular systematics are based on similarities in

defon

Answer:

The correct answer is "mutations to homologous genes".

Explanation:

The missing options of this question are:

A) morphology.

B) the pattern of embryological development.

C) biochemical pathways.

D) habitat and lifestyle choices.

E) mutations to homologous genes.

The correct answer is option E) "mutations to homologous genes".

Modern cladograms do not use physical characteristics to establish evolutionary similarities among species. Modern cladograms are constructed from evidence from molecular systematics based on similarities in mutations to homologous genes. The more similar are the homologous genes, the less different their genetic sequences are, and are considered more closely related in their evolutionary tree.

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3 years ago

Three-carbon molecules of PGA are converted to G3P small sugar molecules by _____, which come from the light reaction.

anyanavicka [17]

<h3>Answer;</h3>

ATP and NADPH

<h3>Explanation;</h3>

Three-carbon molecules of PGA are converted to G3P small sugar molecules by ATP and NADPH, which come from the light reaction.

Photosynthesis, a process in which green plants use energy from the sun to make their own food, involves two types of reactions, light reactions in light stage and light independent reactions in dark stage.

During the light reactions ATP and NADH are generated from the electron transport chains, which are then taken to the second stage (light independent stage) of photosynthesis. During the Light independent stage the energy stored in ATP and NADH is used to convert 3-carbon PGA to G3P.

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3 years ago