The net primary productivity is the amount of energy
A. trapped by the autotrophs of an ecosystem.
B. given off as heat by producers.
C. available for consumers.
D. used in metabolism by producers.
E. Both given off as heat by producers and trapped by the autotrophs of an ecosystem are correct.
C. available for consumers.
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What are the different versions of the same gene?
A) alleles B) diploids C) homologous chromosomes D) sister chromatids
BLAST (basic local alignment search tool) is a bioinformatics tool that allows users to find proteins and nucleotides based on searching for ________
Fill in the blank with correct word.
You have discovered a new species of seal and are observing their behavior on a beach. You see groups of females affiliated with a single male. What data support the hypothesis that sexual selection played a role in the evolution of these behaviors?
A. Most of the offspring of a single group are parented by the male that defends the group. B. Male parentage is independent of group affiliation—females mate with any male on the beach. C. Males spend a large amount of energy on behavioral displays and fighting with other males. D. Females mate on the sly with different males so the parentage of the offspring is uncertain. E. Males switch groups regularly and take turns defending all of the females on the beach from predators.
Which of the following are the final by-products of glucose oxidation during aerobic cell respiration?
A. both ATP and heat only B. carbon dioxide only C. ATP, heat, and carbon dioxide D. ATP only E. heat only