Which animal(s) are likely relying on their electromagnetic receptors?
a. A snake attacking its prey
b. A dog smelling a neighbor grilling a steak
c. A mosquito landing on a human’s arm
d. A flatworm sensing a flash of light
e. A flock of birds migrating to the Southern Hemisphere
e
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How does losing or acquiring territory affect the brain anatomy and chemistry of an African cichlid fish?
a. only the size of the brain is changed b. only the shape of brain is changed c. both the size and shape of the brain are changed d. the size of brain cells producing sex hormones are changed e. the size of brain cells producing territorial hormone are changed
What is the relationship between the promoters for antisense RNA and the promoters of their target genes?
A) The promoters are oriented so that they transcribe opposite strands of the same segment of DNA. B) The promoters are found in different chromosomal regions but are controlled by the same sigma factors. C) The sense and antisense RNAs use the same promoter, both RNAs are produced from a single transcript that is processed. D) The sense and antisense RNAs are transcribed using the same promoter that is bidirectional.
Which statement reflects the age structure of these three countries?
a. India has the greatest proportion of older adults. b. The United States has the greatest proportion of young people. c. India has the greatest proportion of young people. d. China has the greatest proportion of young people. e. China has the greatest proportion of older adults.
How does the spread of viruses differ between plants and animals?
a. Viruses must penetrate through cell walls of plant cells and not animal cells. b. Viruses spread faster in plants than animals because of photosynthesis. c. Viruses do not spread to plants, only animals. d. Viruses spread more slowly in plants than animals because of photosynthesis