The uptake of water and mineral ions from the soil occurs primarily at the ____
a. endodermis
b. root cap
c. quiescent center
d. pericycle
e. root hairs
ANSWER: e
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Let’s suppose you are teaching science in a part of the world without easy access to a doctor and you’re worried that you may have developed diabetes. (Diabetics are unable to regulate blood glucose levels, and glucose accumulates in urine.) How could you perform a test to gain an indication of whether or not you have diabetes?
What will be an ideal response?
Kevin traveled to Africa, and upon his return, he was diagnosed with malaria. What type of
pathogen causes malaria?
a. protist b. virus c. bacterium d. fungi
Which of the following statements regarding helminths causing intestinal distress plus migratory symptoms is incorrect?
A. Praziquantel is the best treatment option for infection with these helminths. B. Nearly all newborn puppies in the U.S. are infected with Toxocara species. C. Tissues along the migratory route of the helminth experience inflammation. D. All of these infections are associated with eosinophilia, which can be detected in a complete blood count.
The acrosome contains enzymes that:a
digest the zona pellucida. b. digest the endometrium. c. stimulate ovulation. d. stimulate sperm motility. e. inhibit premature ejaculation.