It helps get rid of carbon dioxide.
Took me a while to understand any of this XD
Breathing is the exchange of gases between animals & the environment.
Answer:
The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere
Explanation:
Hope This Helps
Happy Hoildays
~Zero~
Answer: convergent evolution
Explanation:
The similar shapes of fast swimming marine predators are an example of convergent evolution.
Convergent evolution shows how different species possess identical structures even though they evolve separately. Convergent evolution typically takes place with the organisms that are not really related.
An example of convergent evolution is the similarity that can be noticed in the wings or the flights of bats, birds, insects, etc
Answer:
an ANTIGEN
Explanation:
a foreign substance that invades your body is called an <u>A</u><u>N</u><u>T</u><u>I</u><u>G</u><u>E</u><u>N</u>. 8. When your body detects an antigen, antibodies are made and lock onto it. Once an antigen is recognized, your immune system can remember it the next time and protect you from getting sick again.
