Mike has suffered brain damage after only a light blow to the head. mike could have cerebrospinal fluid in the nervous system. (2 points) too little; peripheral too little; central too much; peripheral too much; central

According to the cladogram, which organisms have roundworms as a common ancestor?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above