(Q).
You are presented with the question "What feeds on nonliving organic matter?" and the following answer choices: - rabbit - crocodiles - mussels - oxygen - skateboard - barnacles - trucks - fungi Now knowing that bivalves feed on plankton and nonliving organic matter and mussels are bivalve mollusks, choose the best answer.
(A).
mussels

(Q).
You are presented with the question "Which of these insects can harm living things?" and the following answer choices: - their hosts - eukyarotes - Kill them - cause their death - parasites - Female mosquitoes - tapeworms - a pathogens Now knowing that insect bites cause harm to living things and actually, only the female mosquitoes bite people, choose the best answer.
(A).
Female mosquitoes

(Q).
You are presented with the question "what uses hearing to sense sound?" and the following answer choices: - bacteria - h2o - Whales - dogs - humans - cows - protist - bears Now knowing that hearing is used for sensing sound by animals and cows are social animals, choose the best answer.
(A).
cows