Q: Elongation is the addition of what to the mrna strand? Choices: - codons - glycine - filaments - nucleotides A:
nucleotides

(Question)
Q: Contributing to the blood-brain barrier is one of the jobs of glial cells, which support neurons in what system? Choices: - peripheral nervous system - circulatory system - digestive system - central nervous system A:
(Answer)
central nervous system

Ques: Q: Characterized by a short lifespan, what begin with production in the bone marrow under the influence of csfs and interleukins? Choices: - solutes - pathogens - erythrocytes - leukocytes A:
Ans: leukocytes

(Q).
Q: Deer ticks are vectors for the bacteria that cause what disease? Choices: - Dengue fever - malaria - mad cow - lyme A:
(A).
lyme

Ques:Q: What term describes motion that repeats itself at regular time intervals, such as exhibited by a vibrating guitar string? Choices: - gravitational pull - specific speed - apparent motion - periodic motion A:

Ans:periodic motion

Q: Over time, what changes solid rock into pieces? Choices: - metamorphosis - creep - leaching - weathering A:
weathering