Different Habitats Pose Certain Challenges to Animal Survival

question 2

Multiple Choice

Different habitats pose certain challenges to animal survival. For instance, terrestrial insects must maintain water balance by minimizing evaporation. How do insects minimize water loss?

• A) Eat more plant material that is high in water content.
• B) Excrete nitrogenous waste as urea.
• C) Have a cuticle covered by a waxy hydrophobic layer.
• D) Keep the spiracles open.

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Definitions:

Germinal

Pertains to the earliest stage of development in both plants and animals; in human embryology, it refers to the first two weeks of prenatal development.

Miscarriages

The spontaneous loss of a pregnancy before the 20th week, often due to natural causes related to fetal or maternal health issues.

Embryonic Stage

A period in prenatal development occurring from the end of the second week through the eighth week after conception, where major organs and structures within the organism begin to develop.

Germinal Stage

The first two weeks of prenatal development after conception, characterized by rapid cell division and the beginning of cell differentiation.