Choices A, B, C, and E are incorrect. From the fishes to mammals, the brain has evolved in terms of its size and complexity. In this case, both the cerebrum and cerebellum of such animals have increased in its size.

D. I and II only

Choices A, B, C, and E are incorrect. The cerebellum is not in included in an invertebrate nervous system because it appeared in the vertebrate brain only.

D. cerebellum

Choices A, B, D, and E are all incorrect. Movements occur when the muscles pull the bones at a joint. Therefore, the skeletal and muscular systems are involved in this process.

C. skeletal and muscle

Choices A, B, D, and E are incorrect. In order for a jellyfish zygote to grow into a larva and develop into a polyp, their cells must divide and replicate in a process called mitosis.

C. mitosis

Choices A, C, D, and E are incorrect. Asexual reproduction involves the production of offspring that are genetically identical to the parent. This method requires one parent and allows the population to produce rapidly in large numbers. However, its fallback is the decrease in the genetic variability among species and it does not guarantee the survival of all offspring.

B. requires only one parent

Choices B, C, D, and E are incorrect. The endocrine and immune systems work together in maintaining homeostasis. The immune system fights off infection in order to heal and return the body into its normal condition. On the other hand, the endocrine system releases hormones that trigger processes in the cells, and organs, as well as regulate the body functions.

A. restore homeostasis