All lipids are:
A) triglycerides.
B) not soluble in water.
C) polar.
D) hydrophilic.
E) polymers of fatty acids.
B) not soluble in water
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Which process moves materials against a concentration gradient?
a. active transport b. dialysis c. facilitated diffusion
d. simple diffusion e. osmosis
Many animals have a mutually-beneficial, symbiotic relationship with bacteria that reside in their guts. To study the effects of these relationships in more detail, research organisms such as fish and mice have been raised under germ-free conditions. What important process do you predict is compromised in germ-free mice?
A. synthesis of essential amino acids B. vitamin C synthesis C. leptin synthesis D. vitamin D synthesis E. vitamin K synthesis Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about essential nutrients can be made by bacteria in the intestines? What other information is related to the question? Choose Answer · Given what you now know, what information is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The most common respiratory pigments in animals are:a
myoglobin and hemocyanin. b. myoglobin and hemoglobin. c. hemocyanin and hemoglobin. d. mucus and hemoglobin. e. pulmonary surfactant and myoglobin
Slime molds are classified as
A. Amoebozoa. B. dinoflagellates. C. fungi. D. lichens. E. rhizaria.