Only prokaryotes fix nitrogen.
Answer the following statement true (T) or false (F)
True
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A tissue sample containing fibroblasts surrounded by parallel bundles of collagen and elastin fibers is an example of
a. bone tissue b. dense connective tissue c. cartilage d. blood e. adipose tissue
What characteristic suggested that the diet of early primates changed from eating insects, fruits and leaves to a mixed
diet? a. changes in vision b. changes in teeth and jaws c. Bipedalism d. changes in brain size and development e. behavioral changes
Four elements combine to make about 96% of the mass of the human body. Which of the following elements is one of the four?
A. calcium B. iron C. phosphorus D. carbon
Which of the following is not a statistical value often used to represent a sample when evaluating QTLs?
A) mean B) mode C) variance D) standard deviation