Which nucleotide contains the sugar ribose?

a. DNA
b. ATP
c. RNA
d. cAMP
e. UBP


ANSWER: c

Biology & Microbiology

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The body’s main regulator of the internal

environment is the

a. anterior pituitary gland. b. hypothalamus. c. medulla oblongata. d. cerebellum. e. pons

Biology & Microbiology

Matings between two species that produce embryos that fail to develop are evidence of:

a. hybrid sterility b. hybrid breakdown. c. hybrid inviability. d. ecological barriers e. prezygotic isolation.

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The citric acid cycle and the electron transport chain occur in the ________ of the cell

Fill in the blank(s) with correct word

Biology & Microbiology

Tunde has started to forget where she puts things and often forgets the names of people she has just met. What part of her brain is most likely not performing properly, according to the information in the text?

A) prefrontal cortex B) cerebellum C) hippocampus D) cerebrum

Biology & Microbiology