In 1865, a biologist, St. George Jackson Mivart, constructed an evolutionary tree of existing primate species with many branches based on analysis of spinal columns. But to his dismay, another tree based on limb comparison was quite different. Which of
the following analyses would be best to include today to determine which tree is more accurate?
A) comparison of genes that control development
B) comparison of eyes of primates
C) comparison of DNA sequences of primates
D) examination of evolutionary trees constructed by others
Answer: C
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Flowers provide rewards to their pollinators such as:
A. nectar. B. shelter. C. colorful petals. D. pleasant scents.
The correct sequence for the stages in development from conception to birth is
A. zygote, embryonic stage, preembryonic stage, fetal stage. B. fetal stage, zygote, preembryonic stage, embryonic stage. C. preembryonic stage, embryonic stage, zygote, fetal stage. D. zygote, preembryonic stage, embryonic stage, fetal stage. E. fetal stage, embryonic stage, preembryonic stage, zygote.
According to the International Union for Conservation of Nature (IUCN), which of the following sequences shows groups with the highest percentage of species in danger of extinction, from most endangered (on the left) to least endangered (on the right
)? A) plants ? amphibians ? birds B) amphibians ? birds ? plants C) birds ? plants ? amphibians D) plants ? birds ? amphibians
A single bad gene can cause someone to smell like a rotten fish. Which of the following best supports this statement?
a. As long as a person has at least one normal version of the FMO3 gene, he/she will not suffer from Fish Odor Syndrome. b. There is no particular gene that can cause a person to smell like a rotten fish; personal hygiene is not inherited. c. If a child does not have a parent with fish odor syndrome, then they automatically cannot acquire the syndrome. d. A person with fish odor syndrome will always have at least one child with fish odor syndrome. e. If a person who is a carrier of the fish odor allele has a child with someone who is not a carrier, the child will only smell slightly of rotten fish.