8th Grade Life Science Review

Which disease is caused by a fungal infection?

• intestinal worms

• influenza

• chicken pox

• athlete's foot

How are pandemics different than epidemics?

• Pandemics affect blood; epidemics affect skin

• Pandemics affect many countries or states; an epidemic is more localized.

• Pandemics are caused by bacteria; epidemics are caused by viruses.

• Pandemics are spread through the air; epidemics are spread through the water.

Which is one possible human benefit from biotechnology research?

• producing crops that can grow in areas where they normally do not grow

• producing new types of disease-causing viruses

• increasing the ability to turn ocean water to freshwater

• creating new types of buildings that can withstand hurricanes

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How has genetic engineering helped farming?

• by developing better fertilizer for crops

• by creating crops that resist some diseases

• by producing soil that makes crops grow better

• by producing faster ways to harvest crops

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In some environments, wolves prey on deer for their source of food. If all of the wolves were taken from the environment, what would most likely happen to the deer population?

• The deer population would increase and begin to compete for food.

• The deer population would become larger and healthier animals.

• The deer population would decrease, because there would be an increase in disease.

• The deer population would change color, because they would not have to hide from wolves.

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How are mutualism and parasitism different?

• Both organisms benefit in mutualism, while in parasitism only one organism benefits at the other’s expense.

• Both organisms benefit in parasitism, while in mutualism only one organism benefits at the other’s expense.

• Both organisms benefit in mutualism, while in parasitism one organism benefits, and the other is neither harmed nor benefits.

• Both organisms benefit in parasitism, while in mutualism one organism benefits, and the other is neither harmed nor benefits.

Which would most likely increase the genetic variation in a population of organisms?

• increase in diseases

• decrease in diseases

• increase in mutations

• decrease in mutations

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Which is the primary source of energy for most cells in the body?

• sugar

• fat

• protein

• vitamin

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What is the most likely result of overusing a particular antibiotic?

• fewer infections caused by bacteria resistant to the antibiotic

• more infections caused by bacteria resistant to the antibiotic

• fewer infections caused by viruses and bacteria

• more infections caused by viruses

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Which illness could most likely be treated with antibiotics?

• influenza

• common cold

• strep throat

• diabetes