Which of the following organic compounds is the main source of energy for living things?
a) carbohydrates
b) lipids
c) nucleic acids
d) proteins
Answer: a) carbohydrates
You might also like to view...
The least mobile protists are the
a. apicomplexans. b. dinoflagellates. c. diatoms. d. heterokonts. e. euglenoids.
Which of the following is NOT included in the MALT?
A) the appendix B) the spleen C) Peyer's patches D) lymphoid tissue in the respiratory tract E) lymphoid tissue in the small intestine
Polydactyly is expressed when an individual has extra fingers and/or toes. Assume that a man with six fingers on each hand and six toes on each foot marries a woman with a normal number of digits. Having extra digits is caused by a dominant allele. The
couple has a son with normal hands and feet, but the couple's second child has extra digits. What is the probability that their next child will have polydactyly? A) 1/32 B) 1/2 C) 3/4 D) 1/8 E) 7/16
One day after a biology class four of your friends argue about the difference between phylogeny and systematics. Which friend is right?
A. Friend A states that systematics and phylogenies are really the same, one is more recent than the other, but basically they are the same. B. Friend B says that systematics is the same as cladistics and cladistics is reconstructing clades, which ultimately lead to the development of phylogenies. C. Friend C argues that systematics is the actual collecting and cataloguing of specimens into museums that can be used later by scientists to construct clades and phylogenies. D. Friend D says that the way she remembers is that systematics is the reconstruction and study of phylogenies.