A difference between a chicken’s foot and a duck’s foot is the presence or absence of webbing – a duck’s foot has webbing between the digits, while a chicken’s foot lacks the webbing. Which of the cell processes that play a role in producing tissues/organs is NOT happening to a great extent during development of a duck’s foot?
A. cell division
B. cell growth
C. differentiation
D. apoptosis
E. cell connections
D. apoptosis
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Bacteria survive adverse conditions by forming
A. zygotes. B. capsules. C. glycocalyx. D. endospores
What features would enable a doctor to distinguish conclusively between the proliferative and secretory phases of the uterine cycle?
_____ the ratio of estradiol to progesterone _____ ratio of FSH to LH _____ thickened endometrium _____ presence of endometrial glands _____ loss of the endometrium
Blood consists of all of the following EXCEPT
a. plasma. b. platelets. c. white blood cells. d. adipose cells. e. red blood cells
What type of reaction is necessary to produce a dipeptide from individual amino acids?
A) dehydration reaction B) hydrolysis reaction C) denaturation D) Dipeptides are not formed from amino acids. E) None of the answer choices will form a dipeptide.