Gametophyte spores are

answer; i believe its echoic memory,it is believed to last three to four seconds; good luck

21 stacks

step-by-step explanation:

divide 630/30

21 stacks

enjoy!

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's d - life cycles - apex