Essential organic substance that are used in only tiny amount by the body are called
A. trace elements
B. hormones
C. vitamins
D. minerals
Answer: C. vitamins
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The ________ is the length of time it takes for a population of microorganisms to double in number.
Fill in the blank(s) with the appropriate word(s).
When the birth rate plus immigration equals the death rate plus emigration the result is ____
a. logistic growth b. exponential growth c. population saturation d. zero population growth e. geometric growth
organelles that function in protein synthesis. They can be bound to the endoplasmic reticulum (ER) or can exist within the cytoplasm singly or in groups called polyribosomes.
What will be an ideal response?
A wound to the skin may become swollen, red, and hot to the touch. These three responses are part of the ________
Fill in the blank(s) with correct word