Because it is polyploid, the organism with the highest number of genes is
A. yeast.
B. human.
C. raccoon.
D. pufferfish.
Answer: D
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Development of an animal is connected to the genes that are expressed during development. Researchers propose that ...
A. increases in the number of Hox genes have been instrumental in the evolution of many animal species. B. the greater the number of Hox genes the more complex the body plan of the animal. C. both BMP4 and Hox are associated only with digit development in animals. D. increases in the number of Hox genes have been instrumental in the evolution of many animal species and the greater the number of Hox genes the more complex the body plan of the animal are both correct. E. increases in the number of Hox genes have been instrumental in the evolution of many animal species, the greater the number of Hox genes the more complex the body plan of the animal, and both BMP4 and Hox are associated only with digit development in animals are all correct.
What has been the general trend of the world's catch usage? a. Increased fishmeal production
b. Decreased fishmeal production. c. Increased human consumption. d. None of these choices.
Communities evolve to have greater biomass and species richness in a process called
A. sympatric interactions. B. adaptive modifications. C. succession. D. symbiotic relationships. E. competitive exclusion.
Blood vessels that will enter the umbilical cord come from the ____
a. yolk sac b. amnion c. chorion d. allantois
e. chorionic villi