Fruit is produced from the development of the
a. egg.
b. ovule.
c. megaspore.
d. endosperm.
e. ovary
E
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In analyzing the number of different bases in a DNA sample, which result would be consistent with the base-pairing rules?
A) A = G B) A + G = C + T C) A + T = G + T D) A = C E) G = T
what percent of americans have severe allergies?
What will be an ideal response?
Respond to statements 121–125 with reference to the five
components of the gastrointestinal tract listed below. a. stomach b. gallbladder c. small intestine d. appendix e. large intestine D 121. It has no function in human digestion, but it does in other animals. D 122. This organ absorbs about 95 percent of the water that enters the human body, either as fluids or as part of food being eaten. M 123. Enzymatic digestion of proteins occurs primarily in this organ. E 124. Bile salts, bile pigments, cholesterol, and lecithin are stored by this organ. E 125. The digestion of cellulose occurs in this part of the digestive system of the pronghorn antelope.
Matching II. Choose the one most appropriate
answer for each. 1. ___ acrosome 2. ___ cervix 3. ___ clitoris 4. ___ endometrium 5. ___ epididymis 6. ___ FSH 7. ___ Leydig cells 8. ___ LH 9. ___ placenta 10. ___ oxytocin 11. ___ seminal vesicles 12. ___ vas deferens A. acts to trigger ovulation in females B. structures that secrete mucus and nutrients absorbable by sperm; open into the ejaculatory duct C. two of these connect seminiferous tubules with vasa deferentia D. opening between uterus and vagina E. organ that supplies the embryo/fetus with nutrients and removes wastes F. connects epididymis with ejaculatory duct G. hormones that stimulate uterine contractions in the female H. cap over the head of a sperm; contains lytic enzymes to penetrate egg membranes I. testosterone produced here J. sensitive to sexual stimulation; develops from same embryonic tissues as does the penis in males K. the uterine lining L. acts on gonad to help mature gametes; released from anterior lobe of pituitary