All of the populations of different species that occupy and are adapted to a given area are referred to
by which term?
a. biosphere
b. community
c. ecosystem
d. niche
e. habitat
B
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The first part of the small intestine is the
a. duodenum. b. ileum. c. colon. d. cecum. e. jejunum.
Which of the following thinkers argued that much of human suffering was the result of human populations increasing faster than food supply, an argument that later influenced Charles Darwin's ideas of natural selection?
A) Charles Lyell B) Thomas Malthus C) Godfrey Hardy D) Gregor Mendel
Concentration of Na+ is (i) ______ in cytosol compared to extracellular space of neuron. This uneven distribution of Na+ is generated by (ii)________________.
a) (i) lower, (ii) Na+-K+ ion pump b) (i) higher, (ii) Na+-K+ ion pump c) (i) lower, (ii) Voltage gated Na+ channel d) (i) higher, (ii) Voltage gated Na+ channel
Inhalation of arthroconidia is responsible for infection by which of the following organisms?
A) Blastomyces B) Coccidioides C) Mycoplasma D) Streptococcus E) Chlamydophila