Write an observation. Draw an arrow showing how pollen moves during self-pollination.

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.

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answer: b. nucleolus

explanation: nucleolus is a structure in the nucleus are ribosomes are made.

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