Because some scientist might see something that other scientist do not. good luck.
Answer:
This really easy taking antibiotics too often or for the wrong reasons can change bacteria so much that antibiotics don't work against them. This is called bacterial resistance or antibiotic resistance. Some bacteria are now resistant to even the most powerful antibiotics :D hope it helps
Explanation:
Answer:
aortic arches (earthworms)
Explanation:
Earthworms vessels link together
Answer: I'd say C
Explanation: Small plants are at the bottom of the ecosystem, which means they have to start it out. I'm not sure tho.
