Anatomically, Lystrosaurus _____
A) would have had a lower jaw that consisted of a single pair of bones
B) was a tetrapod
C) had skin without scales, typical of modern amphibians
D) would have had no temporal fenestra in its skull
B
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In ____, visitors pay a fee to visit a natural preserve
a. ecotourism b. mixed-use conservation
c. ecosystem valuation d. restoration e. preservation
Each type of cone cell is stimulated by a different color of light. In humans, a colorful scene is perceived as a combination of signals from three cone types. Which colors correspond to these three cones?
I-Red II-Yellow III-Orange IV-Blue V-Green VI-Purple A. I, II, and III B. I, III, and IV C. I, IV, and V D. I, V, and VI E. II, IV, and VI
A dihybrid cross yields 320 F2 offspring. How many are expected to resemble the homozygous recessive parental?
A) 10 B) 16 C) 20 D) 60 E) 180
Which of the following is NOT true concerning mitosis?
A. It insures the immortality of the genetic information possessed by an organism. B. The DNA molecule replicates before any chromosomes can be seen. C. It is the process that heals a wound. D. It accounts for most of the increase in size of growing plants and animals.