How are invertebrates similar to vertebrates?

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation:

it should be d) transitional fossils.

they show the gradualism of evolution throughout a period of time