The three main worm phyla are flatworms, roundworms, and segmented worms. Roundworms have a digestive tube that has two openings. Segmented worms have a closed circulatory system in which blood is enclosed in blood vessels. These are important steps in the evolutionary development of animals.
False unlike the outer core the inner core is made out of mostly solid because it contains iron
Answer: a. adipose connective tissue
Subcutaneous tissue also referred to as the hypodermis, is the innermost layer of skin which is made up of lobules of fat and connective tissues. In the deepest level of the subcutaneous layer, adipose tissues are located, providing insulation from heat and cold.
