Biology, 25.11.2019 03:31, markmoroney22
The bottleneck effect is used to describe an event where a population decreases. one example involves the northern elephant seal. they have a reduced genetic variation due to a population bottleneck humans inflicted on them in the 1890s. hunting reduced their population size to as few as 20 individuals at the end of the 19th century. their population has since rebounded to over 30,000, but they have much less genetic variation than a population of southern elephant seals that was not so intensely hunted. what of these would best define this change if gene frequency?
a) gene flow b) speciation c) genetic drift d) natural selection
Answers: 2
Biology, 21.06.2019 15:30, charlzperru8234
Which of the following is not a way in which a vascular plant's xylem and phloem are similar?
Answers: 2
Biology, 21.06.2019 20:40, jacksoneaton
Aphids are tiny insects that feed on plants. ladybugs are to plants because they eat aphids. which type of organism are aphids in this scenario? co decomposers predators prey producers
Answers: 1
Biology, 22.06.2019 01:00, deshawnnash53
Nucleic acid certain protein cell membranes certain carbohydrates
Answers: 1
Biology, 22.06.2019 01:30, aliciagore
Were does condensation occur? a) hydroshereb) lithosherec) boishered) atmosphere
Answers: 1
The bottleneck effect is used to describe an event where a population decreases. one example involve...
English, 09.02.2021 05:10
Mathematics, 09.02.2021 05:10
Physics, 09.02.2021 05:10