9. A scientist radioactively tags the oxygen in glucose. After cellular respiration has occurred, in which
waste product will that radioactively-marked oxygen be found? (1)

Please help

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.

six grader is what i am ssorry

1. b.

2. d.

3. a.

5. d.

6. c.

these are the only ones that i know, i hope this , and good luck.