Which of the following organisms does NOT contain chitin?
a. Crabs
b. Scorpions
c. Grasshoppers
d. Lobsters
e. Snails
Ans: e. Snails
You might also like to view...
Assuming there are still 100 individuals in the Florida panther population, about how much genetic diversity do you expect to be lost by genetic drift in 10 generations?
A. A little more than 10% B. A little more than 5% C. A little more than 1% D. A little more than 50% E. A little more than 15%
A man and woman are each heterozygous for the autosomal recessive disorder cystic fibrosis. If they want to have
three children, what is the probability that only one of the children will have cystic fibrosis?
a. 1/4 b. 3/4 c. 9/16 d. 9/64 e. 27/64
The Pax6 gene codes for a transcription factor that initiates differentiation of cells that ultimately form the eye. Suppose that a researcher added an activator for the Pax6 gene to embryonic cells that are in the process of forming legs in Drosophila
What do you think the researcher will observe? A) Legs and eyes will develop normally. B) Legs will develop where the eyes normally develop. C) Eyes will develop where the legs normally develop.
If we wished to reduce global climate change, which of the following would not be targeted for reduction?
A) nitrous oxide B) nitrogen C) carbon dioxide D) methane