NC 8th Grade EOG Practice (Part 2)

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

Which illness could most likely be treated with antibiotics?

• influenza

• common cold

• strep throat

• diabetes

How can biotechnology help farmers overcome sudden changes in the global climate?

• by changing the types of soil in which the crops are planted

• by developing crops that are resistant to adverse weather

• b rotating the crops within the same field

• by only planting crops in the winter

How has biotechnology helped to improve the agricultural industry?

• by developing irrigation systems that cover a large land area

• by creating some crops that resist certain insects

• by producing soil free of decomposers

• by developing machines that help farmers harvest crops faster

Questor birds eat small seeds and flying insects.

Wood Plaxer birds eat large berries and beetles.

Which will most likely happen to Questors as a result of Wood Plaxers migrating to their habitat?

• The Questors will compete with the Wood Plaxers for food resources

• The Questors will be forced to fly to a different habitat

• The two species will become extinct

• The two species will coexist with no competition

What happens to most of the energy as it moves throughout a food web?

• It is changed into light energy

• It is changed into heat energy

• It is changed into mass

• It is changed into decomposers

Which is the best evidence for evolution?

• new rock layers containing fossils of simple organisms

• new rock layers containing fossils unlike existing organisms

• old rock layers containing fossils unlike existing organisms

• old rock layers containing fossils of complex organisms

Which best explains why mammals became dominant after the mass extinction of the dinosaurs?

• they had traits that helped them adapt to environmental changes

• they were larger than dinosaurs and ate different foods

• they lived in different areas on Earth than dinosaurs

• they were able to hibernate for thousands of years

Which demonstrates how genetic variation may result from a change in the environment where an animal lives?

• A salmon swims faster as it enters cold waters

• A snake increases its body temperature because it moves on top of a rock in direct sunlight

• A beetle stands out to predators because it moves among plants that have colors different than its own

• An arctic fox changes its color over time because it migrates to an area with a different climate

Where do plants get the food they need for energy?

• They absorb it directly from the sun

• They absorb it directly from the soil

• They produce it during photosynthesis

• They receive it from atmospheric gases