Correct Answer: D. hemolymph bathes organs directly in the hemocoel
Explanation:
Insects have an open circulatory system. Hemolymph leaves vessels and flows through body spaces, transporting nutrients, wastes, and hormones but usually not most oxygen.
Correct Answer: A. brain and ventral nerve cord coordinate behavior
Explanation:
The insect nervous system includes a brain and a ventral nerve cord with ganglia. It controls sensory processing, movement, feeding, and reproductive behaviors.
Correct Answer: A. site where nerve signals stimulate muscle fibers
Explanation:
At the neuromuscular junction, motor neurons communicate with muscle fibers. This allows nervous control of walking, flying, feeding, and other movements.
Correct Answer: D. hemolymph bathes organs directly in the hemocoel
Explanation:
Insects have an open circulatory system. Hemolymph leaves vessels and flows through body spaces, transporting nutrients, wastes, and hormones but usually not most oxygen.
Correct Answer: C. brain and ventral nerve cord coordinate behavior
Explanation:
The insect nervous system includes a brain and a ventral nerve cord with ganglia. It controls sensory processing, movement, feeding, and reproductive behaviors.
Correct Answer: C. site where nerve signals stimulate muscle fibers
Explanation:
At the neuromuscular junction, motor neurons communicate with muscle fibers. This allows nervous control of walking, flying, feeding, and other movements.
Correct Answer: D. hemolymph bathes organs directly in the hemocoel
Explanation:
Insects have an open circulatory system. Hemolymph leaves vessels and flows through body spaces, transporting nutrients, wastes, and hormones but usually not most oxygen.
Correct Answer: C. brain and ventral nerve cord coordinate behavior
Explanation:
The insect nervous system includes a brain and a ventral nerve cord with ganglia. It controls sensory processing, movement, feeding, and reproductive behaviors.
Correct Answer: B. ingestion, storage, and mechanical processing of food
Explanation:
The insect foregut receives food and may include structures such as crop and gizzard. It is lined with cuticle and helps store or mechanically process food.