Q: What kind of hormones are released into the environment for communication between animals of the same species? Choices: - hormones - peptides - reactions - pheromones A:
pheromones

Q: At what point can nutrients enter or exit an ecosystem? Choices: - Largest Population Point - Longest Point - Hottest Point - any point A:
any point

Q: Sympathetic stimulation also triggers the release of epinephrine and norepinephrine, which enhance both cardiac output and what else? Choices: - vasodilation - inhibition - digestion - vasoconstriction A:
vasoconstriction