Gaucher disease is a failure of lysosomes of macrophages to hydrolyze
a. proteins.
b. glucocerebrocide.
c. DNA.
d. polysaccharides.
Ans: b. glucocerebrocide.
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Evidence that algae are the closest relatives to plants is that they both
A. have chloroplasts. B. contain chlorophyll a. C. have cellulose-rich cell walls. D. use starch as a nutrient reserve. E. All answers are correct.
A derived character that is shared by all members of a clade is called a ________ of that clade.
Fill in the blank(s) with the appropriate word(s).
In a water molecule, hydrogen atoms do not bind equidistant from each other.
True or False?
You and your neighbor each have a holly bush in your yards. You carefully water and care for your bush, but it fails to produce berries. Your neighbor, on the other hand, neglects his holly, yet it produces gorgeous red berries each year. Finally, in frustration, you replace your holly with a rose bush. The next year, your neighbor's holly bush has no berries at all. What happened?
A. Roses compete for the same insect pollinators as holly bushes. B. Holly plants are dioecious. Yours was a male that was needed to pollinate the neighbor's female. C. The neighbor's bush became infected with the same disease that yours had. D. Roses secrete a chemical that inhibits the reproduction of neighboring plants.