Question 1
"A change over time" is the definition of
◦ mutation.
◦ homeostasis.
◦ physiology.
◦ evolution.
◦ respiration.
Question 2
"Vertebrates" refers to animals that possess
◦ hair.
◦ mammary glands.
◦ the ability to give birth to live young.
◦ lungs.
◦ a backbone.