Tissues and organ systems.
here is the full chart:
cell --> tissue --> organ --> organ system --> organism
(think: group of [insert former here])
e.g. tissue=group of same cells
(et.al)
Answer:
Hi, there the answer is D. related
Explanation:
Homologous structures are similar structures in related organisms.
Hope This Helps :)
Answer:
Ok I need more of the question more info.
Explanation:
The pollutants in 1970 were the highest since recorded history and are declining steadily.
