Question

animals that can regulate their body temperatures using heat generated inside their bodies are called:
endotherms
ectotherms
cold - blooded
all the above
question 2 (1 point)
what characteristics define an osmoconformer?
an animal that actively secretes salts to prevent water loss
an animal that maintains stable body fluids through active regulation regardless of external salinity
an animal whose internal body fluid osmolarity is similar to, and fluctuates with, its external environment
an animal that exclusively lives in freshwater systems

Explanation:

Question 1

Endotherms are animals that generate heat internally to regulate body temperature. Ectotherms (and cold - blooded animals) rely on external heat sources. So the correct option is the one that matches the definition of endotherms.

Osmoconformers have internal body fluid osmolarity that is similar to and fluctuates with their external environment. Animals that actively regulate (like the first two options) are osmoregulators, and osmoconformers are not restricted to freshwater.

Answer:

A. Endotherms

Question 2