Which of the following is true regarding insect
tracheal systems?
a. They are associated with the blood
circulatory system.
b. They excrete body wastes as well as
transport gases.
c. They depend on the opening and closing of
spiracles.
d. The tracheal tubes are continually open in
large terrestrial insects.
e. They contain respiratory pigments to
enhance oxygen transport
C
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Ferroplasma acidarmanus is ________.
A. capable of growth at pH 0 B. lacks a cell wall C. capable of oxidizing iron D. All of the choices are correct.
The left subclavian vein recieves lymph from
a) left axillary vein b) lumbar trunk c) jugular trunk d) thoracic duct e) right lyphatic duct
Biological literacy is the ability to:
A) use scientific-sounding language to promote consumer products. B) make assumptions about the world, based on the opinions of others. C) determine if one phenomenon caused another, just by making one or a few observations. D) apply the scientific method to evaluate non-quantifiable, subjective information. E) use the process of scientific inquiry to think creatively about real-world issues that have a biological component
The naturally occurring helium atom is chemically inert because:
A) its outermost shell is filled with electrons. B) it has all of the shared electrons it could ever have. C) it has the most protons that it could ever carry. D) its nucleus is filled with two neutrons.