Which hormone stimulates the production of testosterone?
A. Gonadotropin-releasing hormone
B. Follicle-stimulating hormone (FSH)
C. Prolactin
D. Luteinizing hormone (LH)
E. Oxytocin
D. Luteinizing hormone (LH)
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The ________ of the eye works similarly to the shutter of a camera.
A. eyelid B. lens C. cornea D. iris
What liquids are most commonly used for braising?
Compound eyes are composed of many __________
Fill in the blank with the correct word.
Answer the following statements true (T) or false (F)
1. Steroid hormone receptors are in the nucleus of the cell. 2. Steroid hormones do not need a second messenger because they are able to pass through the cell membrane. 3. A cell with an abnormally low number of ribosomes would slow down the effect of a steroid hormone. 4. TSH causes an increase in thyroid hormones when their blood level is too low. This is an example of a positive feedback mechanism. 5. Most hormones use a negative feedback system for regulation.