To which group of arthropods do spiders belong?
a. chelicerates
b. crustaceans
c. myriapods
d. insects
e. none of the above
Answer: a
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Which of the following statements about con transport of solutes across a membrane is correct?
a. cotransport proteins allow a single ATP-powered pump to drive the active transport of many different solutes b. in cotransport, both solutes that are being transported are moving down their chemical gradients c. The sodium-potassium pump is an example of a cotransport protein d. cotransport involves the hydrolysis of ATP by the transporting protein e. a cotransport protein is most c
Your friend is taking Accutane for her adult acne. She comes to you and says that she thinks she is pregnant. What is the best advice that you can give her?
A) Not to worry as Accutane has been proven safe for pregnant mothers. B) Accutane is likely to cause skin disorders in her fetus, so she should stop taking it. C) It is best to see her doctor as soon as possible to determine whether or not the drug is safe. D) As long as she is getting adequate nutrition and taking prenatal vitamins, she shouldn't worry about drug effects on the fetus.
A needle pierces through the epidermal layers of the forearm in which of the following order?
A) basale, spinosum, granulosum, corneum B) basale, spinosum, granulosum, lucidum, corneum C) granulosum, basale, spinosum, corneum D) corneum, granulosum, spinosum, basale
What will be the effect of a drug that prevents the release of intracellular calcium?
a. a decreased number of IPSPs b. a decreased number of EPSPs c. a prolonged hyperpolarization d. increased neurotransmitter release e. decreased neurotransmitter release