Which of the following is a tough polymer that resists chemical and biological degradation?
a. sporopollenin
b. gynoecium
c. sporangium
d. strobili
a. sporopollenin
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For normal human fertilization to occur, _____
A) many ova must be released B) the uterus must be enlarged C) only one sperm needs to penetrate one egg D) secretion of pituitary follicle-stimulating hormone (FSH) and luteinizing hormone (LH) must decrease E) the secondary oocyte must implant in the uterus
What would happen if the body did not produce glucagon?
A. Cells of the body would keep on releasing glucose into the blood stream, even when glucose levels were high in the blood stream. B. Cells of the body would not release glucose into the blood stream when glucose levels were low in the blood stream. C. Cells of the body would keep on taking glucose from the bloodstream and storing it. D. Cells of the body would neither take in glucose from the bloodstream nor release it into the blood stream.
Guppies preyed upon by Killifish are __
species.
a. type I b. K-selected c. type II d. r-selected e. more than one of these types of
Someone who has just had a glass of wine will soon make less of this hormone
A) antidiuretic hormone B) renin C) aldosterone D) atrial natriuretic peptide