The species of modern humans is called ________
A) Homo erectus
B) Australopithecus
C) early Homo
D) Homo habilis
E) Homo sapiens
E
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Which correctly describes renin?
A. It acts on the adrenal cortex to stimulate aldosterone secretion. B. Its secretion is stimulated by elevated blood pressure in the renal afferent arterioles. C. Its secretion is enhanced by high levels of Na+ in the macula densa. D. It is secreted by juxtaglomerular cells in renal afferent arterioles. E. It is secreted by the liver in response to low blood pressure.
The portion of DNA where steroid hormones interact is known as ___________
Fill in the blank(s) with correct word
Which hormone is produced first by the corpus luteum and then by the placenta?
A. Estrogen B. Progesterone C. Human chorionic somatomammotropin D. Human chorionic gonadotropin
Which of the following substances must travel across a membrane via facilitated diffusion?
A) carbon dioxide B) water C) oxygen D) fat-soluble vitamins E) glucose