Can genetic mutations benefit an organism?

Yes

Explanation:

Benefical mutations (mutations that help or benefit an organism) are very important to evolution! They increase an organisms survival or reproduction rates, leading the mutations to spread among the species.

Have a good day :D

hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.

the answer for this question would be d. glaciers