Which of the following is an example of natural selection?(1 point)
Responses
Pesticides are sprayed in a field, resulting in an increase in crop growth and a decrease in insect population.
Pesticides are sprayed in a field, resulting in an increase in crop growth and a decrease in insect population.
Cricket frogs prefer to sleep during the day, while red-eyed tree frogs prefer to sleep during the night.
Cricket frogs prefer to sleep during the day, while red-eyed tree frogs prefer to sleep during the night.
To produce a more desirable fruit, a farmer crosses a tree that produces sweet oranges with a tree that produces large oranges.
To produce a more desirable fruit, a farmer crosses a tree that produces sweet oranges with a tree that produces large oranges.
Rabbits with a mutation for longer, thicker fur survive an unusually cold winter, while many normal rabbits do not surviv
11 answers
Rabbits with a mutation for longer, thicker fur survive an unusually cold winter, while many normal rabbits do not survive.
Evolution is a(1 point)
Responses
theory because it is an explanation that is supported by extensive observations, experimentation, and reasoning.
theory because it is an explanation that is supported by extensive observations, experimentation, and reasoning.
prediction because it makes an educated guess about events that will occur in the future
prediction because it makes an educated guess about events that will occur in the future
variable because it is a factor that can be changed during experimentation.
variable because it is a factor that can be changed during experimentation.
law because it has been proven without exception under certain stated conditions
Responses
theory because it is an explanation that is supported by extensive observations, experimentation, and reasoning.
theory because it is an explanation that is supported by extensive observations, experimentation, and reasoning.
prediction because it makes an educated guess about events that will occur in the future
prediction because it makes an educated guess about events that will occur in the future
variable because it is a factor that can be changed during experimentation.
variable because it is a factor that can be changed during experimentation.
law because it has been proven without exception under certain stated conditions
theory because it is an explanation that is supported by extensive observations, experimentation, and reasoning.
Diagram 1 shows the fossilized remains of the lower portion of a camel's leg. Each subsequent diagram shows the same portion of a camel's leg, but the diagrams are from progressively later time periods. Diagram 4 shows the most recent fossil. These diagrams demonstrate(1 point)Responseshow fossil evidence cannot be used to support evolution.how fossil evidence cannot be used to support evolution.that all living organisms have increased in size over time.that all living organisms have increased in size over time.how fossil evidence can be used to show the evolution of a species over time.how fossil evidence can be used to show the evolution of a species over time.that modern camels have more toes than earlier species of camels.
how fossil evidence can be used to show the evolution of a species over time.
There are approximately 200 species of mice that live all over the world. Deer mice are a particular species of mice that prefer to live in forests, prairies, and fields. It has been observed that deer mice that live in trees tend to have longer tails because they use their tails for balance. Deer mice that live in prairies and fields tend to have shorter tails so they are less likely to be caught when running away from predators. If a forest fire occurred in an ecosystem eliminating the majority of the trees and short-tailed mice are naturally selected over long-tailed mice, the evolution of the mice can be primarily attributed to(1 point)Responsesgenetic engineering.genetic engineering.selective breeding.selective breeding.environmental factors.environmental factors.human impact.
environmental factors.
Cheetahs are one example of a population that has very limited genetic variation.Which of the following groups of animals are most likely to have a limited variety in the genetics of their population?(1 point)Responsesanimals that live on more than one continentanimals that live on more than one continentanimals that have a very large populationanimals that have a very large populationanimals that live in both hot and cold climatesanimals that live in both hot and cold climatesanimals on the endangered species list
animals on the endangered species list
What genetic factor is most likely to result in the extinction of an entire species?(1 point)Responsesa lack of genetic variety in the populationa lack of genetic variety in the populationa genetic defect in a few members of the populationa genetic defect in a few members of the populationa genetic resistance against many diseasesa genetic resistance against many diseasesa lot of genetic variety in a population
a lack of genetic variety in the population
1 answer