Vertebrate jaws evolved from _____
a. gill supports c. scales
b. ribs d. teeth
A
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If a disease affects only a human and not an animal, then it would be difficult to fulfill Koch's postulate number
A. 1. B. 2. C. 3. D. 4.
The law of independent assortment would predict that the F2 progeny of F1 heterozygous plants will exhibit a __________
A) 3:1 phenotypic ratio B) 9:3:3:1 phenotypic ratio C) 1:2:1 genotypic ratio D) 9:3:3:1 phenotypic ratio and 1:2:1 genotypic ratio E) 3:1 phenotypic ratio and 1:2:1 genotypic ratio
In horses and rabbits, the digestion of cellulose takes place in the _______________
A. stomach B. anus C. tumen D. cecum E. large intestine
What is the function of a group of cells that contains a high number of chloroplasts?
a) respiration b) transpiration c) fermentation d) photosynthesis