Ectothermic Animals

question 25

Multiple Choice

Ectothermic animals

• A) depend on heat from the external environment to adjust their body temperatures.
• B) may dilate blood vessels to increase blood flow and heat to the skin.
• C) maintain a relatively constant body temperature despite external temperatures.
• D) may have feathers to keep them insulated.
• E) may have body fat to keep them insulated.

---

Definitions:

Breech Presentation

A childbirth complication where the baby is positioned to be delivered buttocks or feet first instead of the head first.

Childbirth

The process of delivering a baby from the womb to the outside world, also known as labor and delivery.

Buttocks-First

Indicates a birthing position where the baby is delivered buttocks or feet first, also known as breech presentation.

Prolactin

A hormone produced by the anterior pituitary gland that stimulates milk production in mammals.