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
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Annelids have _______, which are hair-like extensions anchored in their skin.
a. chaetae b. parapodia c. radula d. nephridia
A random change in the DNA nucleotide base sequence is called a ________
Fill in the blank(s) with correct word
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.
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)