To help you use the American psychological association (APA) style guidelines, which a chart outlines some of the major differences between APA 6th edition & APA 7th edition!
Hope this helps :)
Protect. The immune system protects the body from diseases and harmful pathogens. The skeletal system keeps you upright and supports you with help from the muscles.
Without seeing the image ...I can suggest C as bacteria and archae are the most similar besides all other options ! am I right !!!
Natural selection doesn't favor traits that are somehow inherently superior. Instead, it favors traits that are beneficial (that is, help an organism survive and reproduce more effectively than its peers) in a specific environment. Traits that are helpful in one environment might actually be harmful in another.
(one again, I hope this helps ^^)
