Question

cells
evolution
reproduction
respiration
growth & development
genetics / dna
response to environment
homeostasis
nutrition / metabolism
a. __________ an amoeba divides itself in half to make another amoeba
b. __________ a deer hears a sound and runs away.
c. __________ a grasshopper eats a plant, a bird eats the grasshopper.
d. __________ over hundreds of years, a bird’s beak has gotten slimmer in order to eat bugs out of a tree
e. __________ an egg turns into a larva, which turns into a pupa, which turns into an adult
f. __________ a family all has sons who have inherited the blood clotting disorder known as hemophilia
g. __________ sand spiders turn light brown over 120 years to blend in with their environment

Explanation:

Part a

Amoeba dividing in half to produce another amoeba is a form of asexual reproduction, so the concept here is Reproduction.

A deer hearing a sound and running away is a response to a stimulus (the sound) from the environment, so it relates to Response to Environment.

A grasshopper eating a plant and a bird eating the grasshopper involves the transfer of nutrients and energy, which is part of Nutrition / Metabolism (and also food chain, but Nutrition / Metabolism fits as it's about how organisms get and use nutrients).

Answer:

Reproduction

Part b