The surge of which hormone will trigger ovulation?
a. Progesterone
b. Luteinizing hormone
c. Estrogen
d. Testosterone
e. Follicular stimulating hormone
b
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If a specimen contains 30% adenine in its DNA then how much cytosine will there be?
A. 40% B. 30% C. 20% D. 10% E. Cannot be determined.
Matching. Choose the one most appropriate answer
for each. 1. ___ adrenal cortex 2. ___ adrenal medulla 3. ___ anterior lobe of pituitary 4. ___ exocrine glands 5. ___ glandular epithelium in gastrointestinal tract 6. ___ gonad 7. ___ hypothalamus 8. ___ pituitary 9. ___ kidneys 10. ___ pancreatic islets 11. ___ parathyroid gland 12. ___ pineal gland 13. ___ posterior lobe of pituitary 14. ___ thymus gland 15. ___ thyroid gland A. secretes one hormone that increases the metabolic rate and another that inhibits calcium release from bone storage sites B. secrete insulin and glucagon C. secretes hormones that prepare accessory reproductive structures for reproduction D. involved in lymphocyte maturation E. secretes tropic hormones, growth hormone, and prolactin F. secretes mineralocorticoids and glucocorticoids G. in many vertebrates, helps to determine the amount and distribution of dark pigments in the skin H. secrete enzymes that help to form angiotensin I. participates in reproductive physiology and responds to photoperiod change J. releases oxytocin and antidiuretic hormone into bloodstream K. secretes a hormone that promotes calcium release from bone storage sites L. produces oxytocin and antidiuretic hormone M. secretes cholecystokinin, secretin, and gastrin N. secretes epinephrine and norepinephrine O. secrete pheromones, milk, tears, sweat, and mucus
What are all the possible gametic genotypes produced by a trisomic individual that is genotype A/A+/B for the trisomic chromosome?
What will be an ideal response?
Which one of the following types of tissues surrounds hollow organs that change shape or size regularly?
A) loose connective tissue B) dense connective tissue C) elastic connective tissue D) reticular connective tissue