Which is an example of a population?
A) all of the microorganisms on your skin
B) all of the students in your classroom
C) all students attending colleges and universities in your state
D) the various plants found in prairies in the western United States
Answer: B
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Your dog becomes ill and you rush him to the veterinarian's office. A technician draws blood from your dog's leg for a vet-ordered lab test. After a few minutes the lab results are given to the vet, who immediately grabs a bottle from a shelf and begins to fill a syringe with an unknown fluid. You inquire about the fluid, and the vet informs you that the fluid is necessary to manage your dog's
metabolic acidosis. Based on the information provided, what is acidosis, and what is the likely effect of the veterinarian's injection? A. Acidosis means that your dog's blood pH has dropped from its normal level, and an injection of saline is required to reverse the condition. B. Acidosis means that your dog's blood pH has increased from its normal level, and an injection of saline is required to reverse the condition. C. Acidosis means that your dog's blood pH has decreased from its normal level, and an injection of buffering solution is required to reverse the condition. D. Acidosis means that your dog's blood pH has increased from its normal level, and an injection of buffering solution is required to reverse the condition.
Cells that produce _____________ have a relatively low amount of smooth endoplasmic reticulum and a relatively high amount of rough endoplasm's reticulum.
a. triglycerides b. glycogen c. digestive enzymes d. steroid hormones
The oldest microfossils are of
A. pollen grains. B. insects. C. eukaryotes. D. prokaryotes. E. small animals.
The human voice is generated by air moving through the _____.
A. pharynx B. glottis C. epiglottis D. pleura E. trachea