What is pain? Why does it exist?
What will be an ideal response?
Pain is perception of a tissue injury. It serves a protective function by causing an animal to withdraw from the cause of injury and behave in a way that promotes healing.
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What is the most common form of cladogenesis?
A. Parapatric speciation B. Allopatric speciation C. Sympatric speciation
In humans, the egg provides the mitochondria to the zygote. In plants, which organelles would be provided by the egg and not by the sperm?
A. nuclei and chloroplasts B. chloroplasts and mitochondria C. nuclei D. mitochondria E. chloroplasts
The new nutritional guidelines from the United
States Food and Drug Administration specify that carbohydrates should make up __________ percent of daily caloric intake. a. 5 b. 15 c. 25 d. 55 e. 75
Topoisomerases function to
A) remove nucleotides from DNA. B) join DNA pieces together. C) twist DNA molecules. D) attach DNA loops to scaffold proteins. E) move chromosomes along spindle fibers.