Which one of the following terms applies to the phylum Platyhelminthes?
A. Diploblastic
B. Radial symmetry
C. Radial cleavage
D. Protostome
E. Acoelomate
Answer: E
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In a study of concordance, a sample of identical twins were evaluated for adult-onset diabetes. The data below were collected for this trait:
(1) in 36 identical twin pairs, both showed adult-onset diabetes (2) in 40 identical twin pairs, only one showed adult-onset diabetes (3) in 336 identical twin pairs, neither showed adult-onset diabetes Items (1) and (2) can be used to calculate concordance as follows: 36/(36 + 40) x 100 = 47%. A. true B. false
Hominins are
A. all forms of humans, extinct and extant. B. arboreal primates. C. the lesser apes. D. chimpanzees and gorillas.
Refer to the accompanying figure. Which statement about the corpus luteum is FALSE?
a. It is responsible for the second peak in the line labeled as 1. b. It is responsible for the second peak in the line labeled as 2. c. It is responsible for the first peak in the line labeled as 1. d. It develops from the empty follicle following ovulation. e. It is most active between days 18 to 26.
Which of these is Not a Lipid?
a. cholesterol b. RNA c. steroids d. phospholipid e. wax