Category 4 TestCategory 4 Test

1 A woman running in a marathon requires a constant supply of oxygen to her muscles. Which cells carry oxygen to muscle tissue?

F Artery cellsG Red blood cellsH Nerve cellsJ Lung cells

2 The single-celled organisms shown above live in water. What is the main function of the structures identified by the arrows?

A Absorbing waterB Removing wastesC Helping with motionD Getting food

Javelina Facts

3 From information in the table, javelinas are best described as —

A decomposersB producersC omnivoresD carnivores

Height 50–60 cm

Length 87–102 cm

Mass 14–30 kg

Top speed 40–55 km/h

Fur colors Dark brown to black

Tusk length 3–3.5 cm

Average lifespan 10 years

Habitats Desert, grassland, forest

Food Cacti, roots, leaves, insect larvae, worms, lizards, eggs

Main predators Mountain lions, coyotes, bobcats, humans, jaguars

4 A grassland community is pictured above. Grasses are considered—

A secondary consumersB primary consumersC decomposersD producers

5 For rabbits, having long hair is an advantage over having short hair in environments with —

F high levels of rainG a large number of competitorsH low temperaturesJ few predators

6 During primary ecological succession, the initial formation of soil helps establish —

F grassesG mushroomsH shrubsJ trees

7 While Mrs. Ludlum is driving on a wet road, her car begins to skid. She regains control of the car and pulls off the road. She feelslight-headed, and her feet and hands feel cold. These sensations are the body’s reaction to a —

A rise in humidityB stressful situationC centrifugal forceD decrease in motion

8 In order to survive in the Arctic tundra, a mammal must have the ability to —

F reduce heat lossG digest lichensH travel across snowJ obtain water from ice

9 Which of the following processes helps the body maintain chemical balance?

F Tears washing away dust from the eyesG Rib bones protecting internal organsH Hair growing faster in winter monthsJ Cells using sugar in the blood

10 According to this food web, which insect group is most beneficial to the Chinese banyan tree?

A Parasitic waspsB MealybugsC Tussock mothsD Leaf miners

11 In the food web above, which of the following organisms feeds on the largest variety of different producers?

A B C D

12 An increase in which of the following factors will most likely result in an increase in the size of a population?

A FoodB PredatorsC CompetitorsD Temperature

13 The picture above shows four varieties of the same species of grass that grow in a prairie ecosystem. Which variety has the best chance of surviving a long period of dry weather?

A Variety 1B Variety 2C Variety 3D Variety 4

14 Which of the following is least affected by seasonal environmental conditions?

F The pattern in a tiger’s furG The dropping of tree leavesH The sprouting of acornsJ The migration of gray whales

15 This Punnett square shows the results of a cross between a tall (Tt) corn plant and a short (tt) corn plant. According to this information, what percent of the offspring were tall?

F 0%G 25%H 50%J 75%

Red-eyed--Rr Brown-eyed—rr

16 In Drosophila melanogaster (fruit flies), red eye color (R) is dominant over brown eye color (r). If the flies in the picture were crossed, what percent of their offspring would be expected to have brown eyes? Record and bubble in your answer on the answer document.

17 Glossy leaves are smooth and shiny. What percent of offspring from the cross shown above will have glossy leaves?

A 0%B 25%C 50%D 100%

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The Couch’s spadefood is adapted to a certain type of Environment. Which of these resources is most likelyscarce in this environment?

A.Soil B. Sunlight

C. Water D. Oxygen

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