Slow-twitch fibers contain many mitochondria and are well supplied with blood vessels, and can make ATP as they need it
Indicate whether the statement is true or false
TRUE
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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.
Describe the approach using genomics to identify genes that contribute to the variations in cognitive ability observed
in humans.What will be an ideal response?
The amino acid chains making up hemoglobin in different species:
a) differ depending on how long it has been since the species last shared a common ancestor. b) differ depending on whether the species are marine or terrestrial. c) are identical--otherwise the hemoglobin cannot function properly. d) reflect differences in how the hemoglobin functions in the species. e) can only be compared among mammalian species since non-mammalians do not possess hemoglobin.
Which type of life cycle do animals have?
A. asexual B. budding C. zygotic meiosis D. gametic meiosis E. sporic meiosis