All 8th Grade Science Resources
Example Questions
Example Question #1 : Life Science
What is the process that enables organisms that are best suited for the environment to live and pass on their genetic traits.
Mutation
Natural Selection
Environmental Selection
Evolution
Natural Selection
Natural Selection is the process that enables organisms that are best suited for the environment to live and pass on their genetic traits.
Example Question #2 : Life Science
What is characterized as a mistake or change in an organism's DNA?
Mutation
Natural Selection
Environmental Selection
Evolution
Mutation
A mutation is characterized as a mistake or change in an organism's DNA.
Example Question #3 : Life Science
Fill in the blank:
When a species becomes better suited to its environment, it's said that the species has __________.
adapted
evaporated
mutated
grown
adapted
Adaptation is the processes in which a species becomes better suited to its environment; thus, the correct answer is adapted.
When a species becomes better suited to its environment, it's said that the species has adapted.
Example Question #4 : Life Science
Which of the following is a cause of extinction?
Deforestation
Habitat Fragmentation
Agriculture
All options are correct
All options are correct
There are many causes of extinction. Agriculture, habitat fragmentation, and deforestations are all causes of extinction.
Agriculture causes extinction by emitting toxins into the environment.
Habitat fragmentation causes extinction by changing an animals habitat. Usually, habitat fragmentation is caused by development breaking apart an animal's habitat.
Deforestation causes extinction by taking away animals's habitats. Deforestation is when forests are cut down.