Compared with sponges, cnidarians have a wider array of cell types, permitting more sophisticated tissue functions. these functions does not include: a. theability to communicate within the organism using hormones. b. secretion of digestive enzymes. c. muscle contraction/movement. d. the ability to sense the environment via a network of nerve cells.

a. the ability to communicate within the organism using hormones

Explanation:

Sponges exhibit the cellular level of body organization and do not have tissues. On the other hand, cnidarians are diploblastic organisms with two tissue layers and specific cell types to perform specific functions.

For example, they have nerve cells that connect the sensory cells present in the body wall to the gland cells. Sense cells of cnidarians are sense various stimuli. Photoreceptors are one of the sensory cells and detect light. Specialized contractile cells present in the epidermis and gastrodermis serve in movement by their contraction. The cells of inner gastrodermis serve in the digestion.

These organisms lack organs and organ systems such as endocrine glands to secrete hormones.

answer: 45

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