Answer:
some stuff you can just look up on goigle my dude
It produces lymphocytes, is important for T cell maturation (T for thymus-derived). The spleen is an organ in the upper left abdomen, which filters blood, disposes of worn-out red blood cells, and provides a 'reserve supply' of blood. It contains both red tissue, and white lymphatic tissue. Hope that helped!
Sponges are the simplest bilateral animal and do lack a body cavity. A sponge has two layers of tissue.
It is false cause the embryo develops the baby into whatever mammal offspring is being born
Answer: Here you go!
Explanation:
Analogous structures are structures that are similar in unrelated organisms. The structures are similar because they evolved to do the same job, not because they were inherited from a common ancestor. For example, the wings of bats and birds, shown in Figure below, look similar on the outside
