What characteristics do all organisms in the phylum Chordata share

Will mark brainliest if correct/available! which of the following statements is true? all plants need flowers to sexually reproduce. sexually reproduced offspring are identical to their parents. fertilization always occurs inside the female's body. a body cell has twice the number of chromosomes as an egg cell.

9. wind power creates pollution. water air soil noise

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above