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

Biology & Microbiology

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Bacteria survive adverse conditions by forming

A. zygotes. B. capsules. C. glycocalyx. D. endospores

Biology & Microbiology

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

Biology & Microbiology

Blood consists of all of the following EXCEPT

a. plasma. b. platelets. c. white blood cells. d. adipose cells. e. red blood cells

Biology & Microbiology

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.

Biology & Microbiology