secreted by the gonadotropic cells of the anterior pituitary gland, and regulates the development, growth, pubertal maturation, and reproductive processes of the body
ANSWER: B, killifish
REASONING: A secondary consumer consumes animals that eat only plants. Larvae and copepods do not fit these descriptions, because they do not eat animals. Snapper do eat animals, so do not fit the description either. Killifish eat small animals that do eat plants.
Answer:
A stork eating fish with its beak = Predator/Prey
Fungi absorbing nutrients = Parasitism
Barnacles = Commensalism
Explanation:
A stork eating a fish is hunting, the stork is predator and the fish is prey.
The fungi is parasitism because it is benefiting while causing harm to its host.
The barnacles are commensalism, because they benefit from the whale but don't harm it.