You think about some scary situation and realize that you had the same reaction when you were called on in class to answer a question in front of everyone. Your teacher used that exercise to describe that the hormone ________ can be produced in fearful

situations by ________.

A) epinephrine; adrenal glands
B) epinephrine; parathyroid glands
C) glucagon; pancreas
D) calcitonin; thyroid gland


Answer: A

Biology & Microbiology

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Annelids have _______, which are hair-like extensions anchored in their skin.

a. chaetae b. parapodia c. radula d. nephridia

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A random change in the DNA nucleotide base sequence is called a ________

Fill in the blank(s) with correct word

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Over 90% of Staphylococcus aureus isolates are penicillin-resistant. Why?

A) They have loosely organized polysaccharide slime layers which protects their cell wall. B) They produce coagulase. C) They have a coating of protein A. D) They produce ?-lactamase. E) They produce staphylokinase.

Biology & Microbiology

The movement of DNA polymerase continues unimpeded if a thymine dimer is present in the DNA double helix.

Answer the following statement true (T) or false (F)

Biology & Microbiology