Unit 2 TestDO NOT WRITE ON THIS TEST

Learning goal 2: transfer of energy

1. Plants take in solar energy during photosynthesis and change it into. . .a. Nuclear energyb. Mechanical/Kinetic energyc. Chemical energyd. Sound energy

2. Animals do respiration to release the energy from their food, what two types of energy do they change the chemical energy into?

a. Chemical and Light energyb. Heat and Mechanical energyc. Heat and Light energyd. Mechanical and Sound energy

3. Study the list, and then decide which sequence best shows the path of energy that

allows animals to move? a. Photosynthesislight energymechanical energyrespirationb. Mechanical energylight energyphotosynthesisrespirationc. Light energyphotosynthesisrespirationmechanical energyd. Respirationlight energyphotosynthesismechanical energy

4. What type of energy is stored in a plants (as sugar) as well as in fat and muscle cells?

a. Kinetic energyb. Electromagnetic energyc. Chemical energyd. Heat energy

Learning goal 3: Human impact

5. What would happen if humans cut down a forest and plant a field of wheat in its place?

a. The same animals that lived there before would still be able to live there.b. All the animals would die.c. The animals would all start to eat wheat.d. The animals would need to find a new home with the plants they eat.

6. Predict what would happen if you introduced a new primary consumer into an ecosystem that was already at carrying capacity (the maximum number of organisms were already living there).

a. The producers in the environment are going to be eaten away and the primary consumers will have a hard time finding food.

b. The producer population will increase and there will be enough food for all of the primary consumers.

c. All of the animals living there will be able to survive just fine because nature has plenty of plants for all the animals.

d. The new primary consumer will stop eating plants and start eating the other primary consumers.

7. What part of an ecosystem would a chemist study?a. The oxygen that are in the water supply.b. How the animals interact with each other.c. The speed at which animals move.d. The weather in the area.

8. What part of an ecosystem would a Zoologist study?a. The chemicals that are in the water supply.b. How the animals interact with each other.c. The rock makeup in the aread. The weather in the area.

9. An animal is endangered and a chemist wants to go in and study the pollutants in the water supply, a zoologist wants to study what other animals are affecting it and a microbiologist wants to study the diseases affecting the animal. Which scientist is the right one for the job?

a. The zoologistb. The chemistc. The microbiologistd. They are all important

Learning goal 4: relationships & models

10. Which of the following relationships would best describe a cow eating grass?a. Producer consumerb. Predator preyc. (Symbiosis) mutualismd. (Symbiosis) parasitism

11. Which of the following relationships would best describe a fox eating a duck?a. Producer consumerb. Predator preyc. (Symbiosis) mutualismd. (Symbiosis) parasitism

12. A biologist in the field finds a species of plant that, instead of making its own food, digs its roots into other plants and feeds off the food that the other plant makes, eventually causing the other plant to die. What kind of relationship would this be?

a. Producer consumerb. Predator preyc. (Symbiosis) mutualismd. (Symbiosis) parasitism

A pyramid of energy is used to analyze the amount of energy available at each feeding level in a food chain. Using the pyramid below, answer the following questions.

13. Why is the amount of energy available to the lion less than the amount available to the giraffes?

a. There aren’t enough grass plantsb. The giraffes can eat as much of the trees as they want.c. The giraffes use up some of the energy before the lion gets it.d. If the lion dies the giraffe will eat it.

14. As you move up the energy pyramid how is energy mostly lost?

a. As light energyb. As chemical energyc. As heat energyd. As nuclear energy

15. Which of the following food chains is correcta. Grassshrewcougardeerb. Snakemousegrassc. Grassdeercougarsnaked. Grass insectmousesnake

16. What would happen to this food web if humans decided to hunt down and get rid of all rabbits?

a. The cougar would have to eat more deer to survive causing the deer population to drop.

b. The grasses populations would drop and the deer would possibly end up starving.

c. The mice wouldn’t have anything to eat.d. The snake would end up eating the rabbits instead.

Learning goal 5:Photosynthesis & respiration17. What reaction do animals use in order to release the energy stored in their food?

a. Circulationb. Conversionc. Photosynthesisd. Respiration

18. What reaction makes materials needed for a plant to grow?a. Respirationb. Conversionc. Rustingd. Photosynthesis

19. An organism that produces sugars from carbon dioxide and water using light as its energy source for the reaction is known as a/an

a. Animalb. Bacteriac. Fungusd. Plant

20. Why is photosynthesis so important to ecosystems? Without photosynthesis. . .a. There would be no food for animals to get their energyb. Plants and animals would have to get their energy from the airc. Animals would have to use the sun to make their own energyd. Nothing would happen differently

21. What chemicals are needed animal to do respiration?a. Water and carbon dioxideb. Sugar and oxygenc. Sugar and carbon dioxided. Oxygen and water

Learning goal 6: Environmental factors on plants

Use this information to answer the next five questions: Students designed an experiment to test the effect of hours of sunlight on sunflower seedlings. They used the same type of sunflowers for each test. They put 5 seedlings in each group and gave each the following amount of light:

This table shows the data they collected as they measured the height of each plant in a group and averaged them.

Day No light 4 hours of light 8 hours of light 12 hours of light

16 hours of light

Day 1 1.2 cm 1.2 cm 1.1 cm 1.2 cm 1.3 cmDay 2 1.2 cm 1.3 cm 1.4 cm 1.9 cm 2.1 cmDay 3 1.2 cm 1.5 cm 2.6 cm 2.7 cm 3.2 cmDay 4 1.1 cm 1.7 cm 3.3 cm 3.8 cm 4.1 cmDay 5 1.0 cm 2.2 cm 3.7 cm 5.2 cm 5.6 cm

22. What independent variable was being tested?a. amount of waterb. amount of lightc. soil typed. sunflower height

23. Why were 5 seedlings planted for each group?a. To increase the accuracy of the datab. to make sure they would all growc. to see if more plants grew fasterd. to make the plants large enough to measure

24. Which of the following is the best conclusion for this experiment?a. Different types of sunflowers grow at different rates.b. Sunflowers grow best with 16 hours of sunlightc. Sunflowers need lots of water, good soil and lots of light.d. The amount of light makes little difference in sunflower growth.

25. If a farmer were to use the information found in this chart to grow radishes they should choose a place for their crop where. . .

a. The sunflower receive 4 hours of lightb. The sunflower receive 8 hours of lightc. The sunflower receive 12 hours of lightd. The sunflower receive 16 hours of light.

26. What are they collecting as their dependent variable or their dataa. Height of plantb. Color of the plantc. The amount of lightd. How yellow the sunflowers are

Learning goal 7: inference & evidence

READ THE FOLLOWING PARAGRAPH THEN DECIDE WHETHER EACH SENTENCE PULLED FROM THE PARAGRAPH IS INFERENCE OR EVIDENCE

It is sad but in many parts of the world, fewer frogs are hopping around than there used to be. Many are being threatened and here are some of the reasons:Some frogs are having a hard time finding soggy homes. Frog habitats are drying up. There are fewer wetlands today. Worldwide, people are draining ponds and marshes in order to build homes. In some areas people are stocking ponds with fish and some of those fish like to eat frogs' eggs. As predators increase, frogs decrease. There are many diseases that are being carried to frogs. There has been a fungus found in ten species of frog that was shown to kill frogs in laboratory trials. Scientists say that the fungus may have been brought to the frogs by the boot of a tourist. Whatever is causing the problem there should be a much greater focus on protecting the frogs.

27. Whatever is causing the problem there should be a much greater focus on protecting the frogs.

a. Inferenceb. Evidence

28. In some areas people are stocking ponds with fish a. Inferenceb. Evidence

29. There has been a fungus found in ten species of frog that was shown to kill frogs in laboratory trials.

a. Inferenceb. Evidence

30. Scientists think that the fungus may have been brought to the frogs by the boot of a tourist.

a. Inferenceb. Evidence

Learning Goal 8: Arguments for and against protecting endangered animals

Use this information to answer the next two questions:

31. What is an argument the lumber company might use to convince people to allow them to cut the trees? Cutting the trees will

a. provide jobs and lumber for people to use.b. help the owl species to survive and reproduce.c. provide food for the animals that prey on the owld. provide food for the animals the owls eat.

32. What is an argument the environmental community might use to convince people NOT to allow the company to cut the trees? Cutting the trees will. . .

a. create more shade and conserve moistureb. endanger the population of the owl.c. allow more trees to grow in their place.d. allow more grass to grow and feed more deer.

Read the following and answer the questions below

The introduction of wolves into ecosystems in the Western United States has been controversial. Environmentalists say the wolves should stay because they are part of the natural ecosystem and help to control primary consumer populations. Ranchers are concerned that the wolves will prey on their livestock and they will lose money.

33. What argument would a rancher make for removing wolves?a. Wolves will help the population of their livestock.b. Wolves will lower their livestock numbers losing them money.c. Wolves should stay because they are part of the ecosystem. d. Wolves are a threat to humans

34. Which argument would an environmentalist make for protecting wolves? a. Wolves will help the population of their livestock.b. Wolves will lower their livestock numbers losing them money.c. Wolves should stay because they are part of the ecosystem. d. Wolves are a threat to humans

A species of owl requires old growth trees to survive. A lumber company wants to cut the trees and replace them with young trees.

Name:_________________________________________Period:__________Learning goal 2

Diagram the transfer of energy through the ecosystem using the pictures as a guide. Label the types of energy at each step.

________________ ________________ ________________________________________________________________________

Pass____________Fail__________

Learning goal 3

Match the following scientists with what they study

_____Zoologist a. Toxic chemicals_____Chemist c. Bacteria_____Geologist d. Drought_____Botanist e. Cactus_____Microbiologist f. Mud slides_____Meteorology g. Diamond back rattle snake

Pass___________Fail___________

Learning goal 4 Draw the following food web. You do not need to draw the animals just use the names and draw the arrows in the correct direction connecting the organisms based on what they eat.

Grass is eaten by rabbits and grasshoppers. Spiders eat grasshoppers. Birds eat grasshoppers and spiders. Foxes eat birds and rabbits.

Pass_____________Fail___________

Learning goal 5 Photosynthesis vs Respiration

Write down the products that are made during photosynthesis and respiration.

Photosynthesis

Respiration

Pass___________Fail____________

1._______________2._______________

1._______________2._______________

Learning goal 6 Plant Experiment

Explain an experiment that you could run in order to test the affect of the amount of light on plants.

Question: How does the amount of light affect the growth of plants?Hypothesis: If _________________________________________________________

Then:______________________________________________________Because:____________________________________________________

Procedures: 1. ___________________________________________________________2. ___________________________________________________________3. ___________________________________________________________4. ___________________________________________________________5. ___________________________________________________________6. ___________________________________________________________7. ___________________________________________________________

Pass__________Fail___________

Learning goal 7 Inference vs Evidence

Miss Brown decided she was going to move to Texas. She needed a job, a place to stay and a barn for her horse, Colter, to live. After a month of planning, she was ready to move. 

On July 1st, 2013, she set out from Utah to Irving, Texas. She was going to break the drive into two different days. The first day she began her drive out highway 6 through Colorado and New Mexico. She stayed at a horse motel in Tucumcari, New Mexico. It was a scary place that was surrounded by cactus and hobos. Luckily, she wasn't poked by a cactus and nothing was stolen.

The second day, she finished her drive through New Mexico all the way to Irving, Texas. She dropped Colter off at his new home and went to her apartment to unpack. As she was unpacking, she felt a deep sense of loneliness. She missed Mrs. Dowdle, Fort Herriman Middle School and even her smart 8th grade students. After about an hour, she decided she had to go back. So she re-packed, picked up Colter and came back to Utah.

List 3 evidences from the above story1.

__________________________________________________________________2.

__________________________________________________________________3.

__________________________________________________________________List 3 Inferences from the story1.

__________________________________________________________________2._________________________________________________________________

3.__________________________________________________________________

Pass__________Fail___________

Learning goal 8 Endangered speciesGive two reasons for protecting endangered animals:

1. _____________________________________________________________

2. _____________________________________________________________

Give two reasons against protecting endangered animals:

1. _____________________________________________________________

2. _____________________________________________________________

Pass________________Fail_____________