Why aren't viruses considered living organisms?
A. because they lack the metabolic machinery to acquire and use nutrients
B. because they are not composed of cells
C. because they do not possess genetic material
D. because they do not replicate
E. None of these are correct.
Answer: D
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What is basal metabolic rate?
a. the rate at which the body uses energy when exercising b. a measurement designed to assess increased health risk associated with weight c. the amount of calories consumed in one day d. the rate at which the body uses energy when you are at rest e. the rate at which energy is stored within the body
Aerobic respiration became established as a result of the evolution of ____
a. the first protocells b. the first true cells c. metabolism d. the nuclear envelope e. the oxygen-producing pathway of photosynthesis
What are two organ systems that are not always found in animals?
What will be an ideal response?
Stack of chlorophyll-containing thylakoids in a chloroplast.
What will be an ideal response?