A.
contracts to move substances through the body
D.
breaks down food to acquire nutrients
I believe the answer would be D because when they collide they move the Earth
Hey there!
I believe the answer you're looking for is radio wave
Hope this helps!
Answer: Colonial organisms are the result of many identical individuals joining together to form a colony. These cells are partly dependent on each other to start with. But, later evolutionary events resulted in the obligatory relationships among them resulted in multicellularity.
