Scientific theory is based on A) Data collected over time
B) A general claim by scientist
C) The best guesses of a scientist
D) an idea that can be proven true

I think it's D

Explanation:

Cause usually a scientist creates a hypothesis or theory so they can prove that it's true.

¯\_(ツ)_/¯

A) Data collected over time

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.

answer: if she breaths she a thho

explanation: