Nephrons are part of which of the following structures?
a. neurons
b. heart valves
c. kidneys
d. liver

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

What are the result of when individual components in an organism interact with others to create noval stucture and function called

What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent