Answer:
integumentery system
Explanation:
your skin is actually the first protection against illness-causing pathogens.
The carrying capacity of the environment has remained constant.
Hope this helps!
-Payshence xoxo
Answer:
C
Explanation:
its c because it had cells that need them
Answer:
Furthermore, animal cognition research tends to eschew questions of which animals are smarter than others, focusing instead on more specific questions like the ones above. Scientists often say that they are more interested in how well an animal evolved to thrive in their environment, rather than in how smart they are.