In This Diagram, What Is the Structure Labeled a Called

question 32

Multiple Choice

In this diagram, what is the structure labeled A called?

• A) Yolk sac
• B) Amnionic cavity
• C) Trophoblast
• D) Embryonic disc

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Definitions:

Male Pipefishes

Members of the Syngnathidae family, unique for their role in childbearing, as males carry and nourish embryos in a specialized pouch.

Optimal Investment

The most efficient allocation of resources or capital to achieve the highest possible return or benefit, considering the level of risk involved.

Probability Of Remating

The likelihood that an individual will engage in mating again after a certain period or event, which can affect genetic diversity and population dynamics.

Sex Ratios

The proportion of males to females in a population, which can influence social structure, mate competition, and reproductive strategies.