30 points (:
1) the difference between a protostome and a deuterostome is that
a- a dueterostome only has two germ layers
b- a protostome always develops into an acoelomate
c- the blastopore in a deuterostome develops into the animal's anus
d- only protostomes can develop into raidially symmetrical adults.
yo x

answer: 4

explanation: 8

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.

answer///(c) the maximum number of organisms an environment can support for a long time; i believe this is correct, plz check luck;