Which of the following allows energy to be used by living things?
a. It cannot cause changes.
b. It can be reflected.
c. It has no mass.
d. It can interact with matter.
Answer: d. It can interact with matter.
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The metabolic breakdown of specialized brown fat depots in certain animals is substantially increased during _____
A) acclimatization B) torpor C) evaporative cooling D) nonshivering thermogenesis E) shivering thermogenesis
The genomes of ________ cannot function as mRNA and therefore these viruses must bring at least one RNA-dependent RNA polymerase into the host cell during entry.
A. double-stranded DNA viruses B. negative-strand RNA viruses C. single-stranded DNA viruses D. positive-strand RNA viruses
The pH of the stomach is about ________
a. 7 b. 2 c. 11 d. 5
Innate effector phagocytes are coated with opsonin receptors and receptors to pathogen-associated molecular patterns (PAMPs). These PAMP receptors are collectively called:
a. PRRs b. complement receptors c. TLRs d. LPS receptors