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salantis [7]
3 years ago
11

Biologists use molecular clocks to try to measure _____.when a molecule was createdhow long molecules have existedwhen two speci

es separated from a shared ancestorwhen two species will merge to become one species
Biology
2 answers:
Salsk061 [2.6K]3 years ago
5 0
C) When two species separated from a shared ancestor
IRISSAK [1]3 years ago
4 0

The correct answer is C. When two species separated from a shared ancestor

Explanation:

In biology, the term "molecular clock" refers to a technique biologist use to study the origin of mutations that made one; species led to others. This implies through the molecular clock scientist can determine the evolution and species and the time in which two species separated from a shared ancestor or diverged. This technique relies mainly on biomolecular information based on sequences of DNA as differences in DNA between two species with a common ancestor marks the divergence of these species, also molecular clocks use the comparison of fossils to confirm evolutive divergence. Therefore, it can be concluded biologist use molecular clocks to try to measure "when two species separated from a shared ancestor".

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B)protons, down

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Chemiosmosis is the diffusion of ions through a selective permeable membrane. It specifically refers to the production of ATP through the movement of hydrogen ions through an inner membrane during cellular respiration. Hydrogen ions diffuse from an area of ​​high proton concentration to one of lower concentration.

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<u>Both of these are necessary to maintain overpopulation of any species in an ecosystem.</u>

Explanation:

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  • Since an ecosystem is made up of many organisms along with the natural resources present in it.

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  • On the other hand, competition is a term which describes the harm caused to two different organisms.

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