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Leto [7]
4 years ago
14

Speciation is the process by which new species are formed. Which of the following circumstances is most likely to lead to specia

tion? A. A population becomes separated by environmental factors into two groups that do not reproduce with one another. B. A population is unable to compete with other species and becomes extinct. C. A population reproduces beyond the carrying capacity of the ecosystem in which the population lives. D. A population begins to develop sexual dimorphism between the males and females of the species.
Biology
1 answer:
trapecia [35]4 years ago
4 0

Answer is A. A population becomes separated by environmental factors into two groups that do not reproduce with one another.

When a population of a species become geographically separated then gene flow between them stops. Over a period of time, the population may become genetically different in response to the natural selection due to different environments. Selection and genetic drift will act differently on these two separated populations. This will results into two separate species. This type of speciation is called allopatric speciation.

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Answer:

Functions of phosphorus in the body,

i) Formation of bones and teeth. It's a component necessary for forming strong bones and teeth in the body.

ii) It's important in helping to make protein in the body for growth. Since many proteins in the body are phosphorylated for regulating their functions.

iii) Activation of enzymes. This done through phosphorylation.

iv) Gene transcription. It provides structural importance to the gene and protein binding is by the presence of phosphorus.

Deficiency of phosphorus in the body;

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This process needs four steps pollination, germination, penetration of the ovule and fertilization. The Zygote divides to form an embryo after fertilization.

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