Biology, 21.05.2021 21:20 datgamer13
These pictures compare the numbers of prairie dogs in an area at two
different times. The picture on the right shows the area 10 years after the
picture on the left.
Which statement best explains the change over the 10-year period?
A. Both the death rate and the emigration rate decreased.
B. The immigration rate remained steady, and the birthrate increased.
C. Both the emigration rate and the death rate increased.
D. The birthrate increased, and the emigration rate remained steady.
Answers: 1
Biology, 22.06.2019 15:30
Which of the following can occur to two segments of a population if they are geographically isolated 1.) they can only share some types of genes 2.)both groups most likely become extinct 3.)they find a way to come back together 4.)eventually they become separate species
Answers: 1
Biology, 22.06.2019 20:00
Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error? the object is an asteroid, not a dwarf planet.the object is a moon, not a dwarf planet.the object is not a dwarf planet because it travels with other objects.the object is not a dwarf planet because it is round.
Answers: 1
Biology, 22.06.2019 21:00
Which statements about a food chain are true? choose all answers that are correct. a.plants are the first living organisms in food chains on land. b. the plants in a food chain are called herbivores. c. all food chains on land begin with energy from the sun. d. carnivores in a food chain eat only plants.
Answers: 1
Biology, 22.06.2019 21:30
Agenetically engineered corn plant is approved for agricultural use. the plant produces pollen that can make its own toxins. these toxins protect the corn plant against pests and no longer require the application of chemical pesticide. what is a likely impact on the farmer of growing such a variety of corn? a- the financial costs for the farmer would be lowered since less crops would be lost to pests. b-the financial costs for the farmer would be lowered since more crops would be lost to pests. c-the farmer may be held responsible for increasing chemical pollution. d-the farmer's expenses for pest control would increase due to an increase in bee population.
Answers: 2
These pictures compare the numbers of prairie dogs in an area at two
different times. The picture o...
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