Which of the following is NOT one of the American Cancer Society’s warning signs?

a. change in bowel and bladder habits
b. changes in appetite
c. sores that don’t hea
d. nagging cough
e. unusual bleeding


ANSWER: b

Biology & Microbiology

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In eukaryotes, mitochondria are the organelles primarily involved in:  

A.  export of enzymes. B.  lipid synthesis. C.  phospholipid assembly. D.  protein synthesis. E.  energy release/capture.

Biology & Microbiology

Pollen is produced by the:

A. stigma. B. ovary. C. stamen. D. style. E. petals.

Biology & Microbiology

An action potential in a neuron begins when

a. a threshold potential is reached. b. the resting potential is established. c. gated sodium channels close. d. when gated potassium channels close. e. more than one of these occur

Biology & Microbiology

Can we estimate the following equation using standard linear regression techniques: Yi = ?0 + ?1Xi + ?2Xi2 + Ui?

A. No, we cannot isolate the treatment. B. Yes, this is linear in X. C. Yes, this is linear in our parameters. D. No, this is not linear in X.

Biology & Microbiology