A cow eating grass is an example of a _____.
a. tertiary consumer
b. producer
c. secondary consumer
d. primary consumer
e. detritivore
Answer: d. primary consumer
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Plasma membrane phospholipids are labeled with a fluorescent tag and then the phospholipids in one area are bleached with a laser beamto eliminate the fluorescent signal. What would one observe after the cell is incubated for a few minutes?
A. The bleached molecules would disappear into the cell. B. The bleached molecules would diffuse laterally through the membrane and intermix with unbleached molecules. C. The bleached molecules would remain in the spot where bleaching occurred. D. All the bleached molecules would flip-flop across the cell membrane. E. The bleached molecules would be released from the cell.
What are 3 human activities that negatively affect sea turtle survival?
What will be an ideal response?
When a person dies, the body often experiences rigor mortis. In this condition, it is as if the muscles
have become inflexible and it is very difficult to manipulate the joints. Why does this occur? What will be an ideal response?
Fermentation occurs in a chamber called the rumen in _______
A. cow B. rabbits C. rodents D. horses