Biology, 06.01.2022 01:00 johnsonwhitney2
An astronomer observes the light of a galaxy that is 600 million light-years away. How old is the light?
1 year old
10 years old
50 million years old
600 million years old
Answers: 2
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Which of the following is not a benefit of green revolution? a) new crop varieties b) increased crop yields c) cost effective d) new crops may require larger amonts of water than the previous ones.
Answers: 2
Biology, 21.06.2019 23:30
Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.
Answers: 2
Biology, 22.06.2019 00:00
What do lava flows made of aa indicate about the type of volcanic eruption that occurred? a. the eruption was viscous. b. the eruption was pyroclastic. c. the eruption was explosive. d. the eruption was quite. !
Answers: 1
An astronomer observes the light of a galaxy that is 600 million light-years away. How old is the li...
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