Organ system is the answer
Answer:
Arteries carry blood away from the heart
Explanation:
Veins carry the blood back to the heart.
Hope this helps!
Answer:
Option (2).
Explanation:
Ecological succession is the change in the ecological community of the species with respect to time. Two types of the succession are secondary succession and primary succession.
The ecological succession includes various transitional stages before reaching to the climax community. The simple species acquires first and then the climax species is reached at the end of the succession. Different changes are involved in the formation of climax community.
Thus, the correct answer is option (2).
Hi!
The answer is "avoidance of bias"
Hope this helps!
-Payshence xoxo
