Our atmosphere is composed of _____________ ,______________ and 2% miscellaneous gasses . * 78% oxygen, 20% nitrogen 78% nitrogen, 20% oxygen 93% oxygen, 7% nitrogen 93% nitrogen, 7% oxygen 2. Which o

Our atmosphere is composed of _____________ ,______________ and 2% miscellaneous gasses . *

78% oxygen, 20% nitrogen

78% nitrogen, 20% oxygen

93% oxygen, 7% nitrogen

93% nitrogen, 7% oxygen

2. Which of the following has the most significant impact on the environment? *

Natural Disasters

Humans

Ecosystems

Carbon Dioxide

3. Which step of the scientific method applies to the following scenario? Rick wants to know if rising carbon dioxide levels in the atmosphere have an impact on global temperature. *

Define a problem

Observe the problem

Make a hypothesis

Make a prediction

Test the hypothesis

Summarize and make a conclusion

4. Which step of the scientific process applies to the following scenario? Rick believes if carbon dioxide levels continue to rise during the next decade, then average global temperatures will also rise in the next decade. *

Define a problem

Make a hypothesis

Test the hypothesis

Summarize and make a conclusion

5. While cleaning his room, Dom sees a spider that resembles a brown recluse. Since brown recluse spiders are venomous, Dom wants to be sure the species he observed is a brown recluse. Which environmental specialist should Dom take the spider to? *

Ecologist

Ichthyologist

Entomologist

Zoologist

6. A farmer notices that her corn crops are not growing as expected. Upon further investigation, the farmer notices that many of the crops have dark spots on the stalks and leaves. Which environmental specialist should the farmer contact to diagnose and treat the disease affecting her crops. *

Ecologist

Agronomist

Botanist

Conservationist

7.Select all that apply: Which issue(s) followed Chernobyl's nuclear meltdown? Select all that apply. *

Radiation/ Radioactive waste

Loss of farmland

Death rates exceeded the birth rates

Mutation rates increased in both local wild life and human populations

8. Where did the Exxon Valdez oil spill take place? *

Gulf of Mexico

Gulf of Alaska

Black Sea

Gulf of Exxon Valdez

9. All of the following are abiotic factors except... *

Air

Water

Sunlight

Bacteria

10. Which of the following is not used to identify living things? *

Able to reproduce

Able to adapt and respond

Able to move

Undergoes cellular respiration

11. How many layers are in the atmosphere? *

1

2

3

4

12. Earth's inner core is responsible for Earth's ... *

Magnetic field

Ocean currents

Volcanic activity

Tectonic plate movement

13. _____ make up ______ which make up ______. *

Organs, tissues, cells

Cells, organs, tissues

Tissues, cells, organs

Cells, tissues, organs

14. While on a hike, you observe many different species of plants, insects, animals, fungi, etc. All the different species you observe can best be described as that ecosystem's _________. *

population

community

organisms

inhabitants

15. The Pennsylvania Wildlife and Game Commission conducts a study that monitors the amount of white-tailed deer in northeastern Pennsylvania. This study is recording the number of individuals in the white-tailed deer's __________. *

population

community

organisms

herd

16. Fill in the blank: The variety of life in the world or in a particular habitat is known as

Your answer

17. True or False: All the different types of minerals, elements and rocks in an environment is an example of biodiversity. *

True

False

18. The picture above shows two phenotypes of peppered moths (dark and light). The dark moth has an advantage over the light moth because it can blend in with its environment better. As a result, the darker moth is more fit to survive, reproduce and pass along its genes. This can best be described as ______________. *

camouflage

mimicry

polymorphism

natural selection

19. True or False: Wolves and dogs are the same species. *

True

False

Galapagos Finch Species

20. Explain how Charles Darwin used the theory of natural selection to rationalize why each species of finch of the Galapagos Island had a different type of beak. (4 points) *

Your answer

SUBMIT