In the Last Few Weeks of Pregnancy, the Level of Estrogen

question 9

Multiple Choice

In the last few weeks of pregnancy, the level of estrogen in the woman's blood rises. This increase causes

• A)the fetus to develop more rapidly.
• B)the amount of prostaglandins secreted by the placenta to decrease.
• C)the muscles of the uterus to become more sensitive to the hormone oxytocin.
• D)even more estrogen to be released from the pituitary gland.

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Definitions:

Autotrophs

Organisms capable of producing their own food from inorganic substances using light or chemical energy, without consuming organic substances from other organisms.

Heterotrophs

Organisms that cannot synthesize their own food and rely on other organisms — both plants and animals — for nutrition.

Trophic Levels

Refers to the hierarchical levels in an ecosystem, categorized by how energy is obtained, ranging from producers to primary consumers and up to apex predators.

Carnivore

An animal that mainly feeds on other animals; a mammal belonging to order Carnivora (e.g., wolves or seals).