1. Science 3rd 9 Weeks Review
TEKS
3.9, 3.10

2. TEKS 3.9A
1. The more limited the supply of resources within an ecosystem, _____________________. A the larger the animal population. B the more predators there are. C the greater the competition. D the larger the variety of animals there are.

3. TEKS 3.9A
2. The most basic parts of an ecosystem are made up of _____________. F sunlight, soil, and air G living things H populations and communities J living and nonliving things

4. TEKS 3.9A
3. Which of these sets of animals would you expect to find in a fresh water-related environment? A Foxes, rabbits, mice B Sharks, snails, butterflies C Fish, frogs, turtles D Seals, penguins, owls

5. TEKS 3.9A
4. Which of the following could not survive in a forest ecosystem? F Moss G Cactus H Shrubs J Ferns

6. TEKS 3.9A
A nearby park contains a large deer population. Lately, the deer have been jumping the fences at night and eating the shrubs in the gardens of the people who live near the park. 5. What can you conclude? A The deer have become less afraid of people B People are feeding the deer C The deer are no longer content with the food available in the park D The deer population has become too dense for the park.

7. TEKS 3.9B
Study the food chain below. Sun dandelion rabbit fox cougar 1. Using this food chain, which statement BEST describes a relationship between the populations in this community? A The dandelions receive energy from the cougar B The fox receives energy from the cougar C The dandelions receive energy from the Sun D The rabbit receives energy from the fox

8. TEKS 3.9B
Study the food chain below. Sun dandelion rabbit fox cougar 2. How would the community most likely change if the rabbits were removed? F The cougar population would decrease G The dandelion population would decrease H The fox population would increase J The cougar population would increase

9. TEKS 3.9B
3. Which of the following would be a top-level consumer in an ocean food chain? A Squid B Great White shark C Lantern fish D Shrimp

10. TEKS 3.9B
4. Which of the following is a fact? F There is only one food chain in an ecosystem G Food chains do not occur in ecosystems H There are many food chains in an J There are two food chains in an ecosystem

11. TEKS 3.9B
5. Which of the following would be a producer within a food chain? A Plant-eating animals B Animals that eat other animals C Animals that are not eaten by other animals D Plants

12. TEKS 3.9C
The marsh willow herb is a plant native to the northeastern United States. It grows best in damp environments. 1. Which of the following environmental changes would most likely cause a decrease in the marsh willow herb population in an area? A A rainstorm lasting several weeks B A drought lasting twelve months C Unusually low temperatures during the month of July D Unusually high temperatures during the month of January

13. TEKS 3.9C
2. Which human activity is most harmful to the natural environment? F Swimming in a lake G Riding a bicycle H Cutting down a rain forest J Using solar energy

14. TEKS 3.9C
3. Which organisms would benefit most from a forest fire? A Large animals like deer that eat forest plants B Small animals like squirrels that live in trees and eat seeds C Large plants and trees that take many years to grow D Small plants and shrubs that need lots of sunlight to grow

15. TEKS 3.9C
An isolated population of butterfly lives in a damp meadow. The larvae feed only on a species of violet plant that lives in the meadow. The adult does not fly far from the violet plants. One summer, a virus causes the violet plants to die. 4. As a result of the absence of violets, the butterfly population will most likely __________________. F increase and flourish G decrease to a level near extinction H switch to a different type of food J evolve immediately into a new species of butterfly

16. TEKS 3.9C
A hurricane moves through a rural environment. It uproots trees and leaves debris in the freshwater streams and ponds. 5. What effect will the hurricane have on the animal life of the ecosystem? A New habitats are created for the plants and animals B Food supplies for the animals are increased from the clearing of land C Native animal populations will decrease from lack of shelter and food D Animal populations will remain the same

17. TEKS 3.10A
1. Owls hunt for food mostly at night. How do owls find food in the dark? A Owls use their feet to scratch and find seeds B Owls sit in trees and wait for food to move closer C The eyes of owls open very wide to see in dim light D Owls find food using antennas

18. TEKS 3.10A
2. If you saw a bird with a sharp, pointed beak, you could infer that the bird _______________. F eats insects G eats twigs H eats leaves J eats mushrooms

19. TEKS 3.10A
3. Animals have adaptations that help them survive. One example of an adaptation is the giraffe’s long neck. What primary purpose does this adaptations serve? A Protection from heat B Protection from predators C Increased speed D Gathering of food

20. TEKS 3.10A
4. The main function of a fish’s fins is to help the fish ________________. F reproduce G see H breathe J move

21. TEKS 3.10A
5. How do sharp spines on a cactus help it survive? A They absorb sunlight B They provide support for the plant C They keep animals away from the plant D They carry food to the flower

22. TEKS 3.10B
1. Which of the following is NOT an inherited trait? A Number of limbs B Flower color C Weight D Shape of leaves

23. TEKS 3.10B
2. Which of the following is an example of a learned behavior? F Being able to read G Being able to breath H Having a scar J Having brown eyes

24. TEKS 3.10B
3. Which is not an example of an animal responding to it environment? A A female dog has puppies B A bear hibernates at the beginning winter C A lizard sunning itself on a rock D A snake moving slower during cold weather

25. TEKS 3.10B
4. Which BEST explains why some dogs have longer ears than others? A They do different activities B They eat different types of food C They inherit their ear length from their parents D They inherit their ear length from their offspring

26. TEKS 3.10B
5. Which of the following is most likely a learned behavior? A A chimpanzee using a stick to get food B A dog coming when called C An archerfish knocking an insect off a leaf D All of the above

27. TEKS 3.10C
1. Trees start as seeds and grow into mature trees that produce more seeds. This pattern represents a ___________________. A food chain B life cycle C food supply D life span

28. TEKS 3.10C
2. A saguaro cactus can grow up to 50 feet tall, but it grows less than 1 inch in its first 10 years. Which of the following is true? F The saguaro grows the most after its first 10 years G A 50 food saguaro is less than 10 years old H The saguaro reaches its full size at age eleven J A full grown saguaro is 5 times the size of a one year old saguaro

29. TEKS 3.10C
3. Which of the following structures does a frog develop as it changes from a tadpole to an adult frog? A Eyes B Heart C Lungs D Tail

30. TEKS 3.10C
4. Which of the following best represents one particular stage in a life cycle? F A fish swimming G A seed sprouting H A leaf growing J A dog eating

31. TEKS 3.10C
5. Which of the following happens first? A The seed germinates B The plant produces flowers C Fruit forms around the flower’s seeds D Animals and insects feed on the nectar in the flower

32. Common Assessment 3.9
1. This habitat would be BEST for which of the following pets? A Lizard B Fish C Butterfly D Bird

33. Common Assessment 3.9
2. Which of the following characteristics do all environments share? F All are cold in winter and hot in summer G All have the same types of plants and animals H All provide the resources necessary to support living organisms J All exist only on dry land

34. Common Assessment 3.9
3. Which of these animals would MOST LIKELY survive in an environment that is cold and snowy most of the year? A C B D

35. Common Assessment 3.9
Earthworms feed on decaying plant and animal matter in soil. They also need moisture in order to survive. A third grade classroom decided to set up a habitat to keeps earthworms in their classroom. 4. Which habitat from the table above would provide the BEST environment for the earthworms? A Habitat 1 B Habitat 2 C Habitat 3 D Habitat 4
Habitat
Soil Type
Moisture
Temperature 1
Silt with clay
Low
Cool 2
Medium
Warm 3
Soil with humus 4

36. Common Assessment 3.9
5. Which of these animals would MOST LIKELY be found living and feeding on the forest floors of Texas? F Bat G Trout H Deer J Eagle

37. Common Assessment 3.9
6. Which of the following is a living part of a desert in Texas? A Prickly pear cactus B Horned Lizard C Rattlesnakes D All of the above

38. Common Assessment 3.9
Tropical rain forests have more plant growth than any other type of environment. One reason may be due to the amount of rainfall in the tropical rain forest. 7. What is another reasonable explanation for having the most plant growth? F Temperatures are warm all year long in the rain forest G People do not cut down trees in the rain forest H The leaves high in the forest canopy absorb most of the sunlight J Many birds and insects in the rain forest eat plants

39. Common Assessment 3.9
8. Which of the following would not be found in a ocean? A Jellyfish B Squid C Kelp D Not here

40. Common Assessment 3.9
9. A girl is studying an animal that lives in a hot, humid area with plenty of shade. In which environment does this animal MOST LIKELY live? F Artic G Prairie H Desert J Rain forest

41. Common Assessment 3.9
The diagram below shows a beaver lodge built using materials found in their environment. 10. The diagram shows that beavers use trees found within their environment for ____________. A air. B water. C food. D shelter.

42. Common Assessment 3.9
11. When trees begin to develop leaves in the spring, changes occur on the forest floor. Why do these changes occur? F Rainfall increases G Sunlight is reduced H Winds increase J Snowfall increases

43. Common Assessment 3.9
1. Plants and animals must have their needs met by their environment in order to survive. Describe how an ocean environment meets the needs of an animal in it.

44. Common Assessment 3.9
2. Explain why a polar bear could not survive in a desert environment.

45. Common Assessment 3.10
1. Which of the following is a true statement about the life cycles of plants and animals? A Neither organism has a complete life cycle B Animals have more life stages then plants C Plants and animals both go through life cycle stages D Plants have more life stages then animals

46. Common Assessment 3.10
2. Which shows the correct order of the corn plant life cycle shown above? F 4, 1, 3, 2 G 3, 4, 1, 2 H 3, 1, 4, 2 J 4, 3, 2, 1

47. Common Assessment 3.10
3. The diagram above represents a __________. A food chain. B life cycle. C food supply. D life span.

48. Common Assessment 3.10
Which stage is NOT part of the cricket’s life cycle?
F Nymph
G Adult
H Larva
J Egg

49. Common Assessment 3.10
5. At what stage during this life cycle are seeds produced? A Stage W B Stage Y C Stage Z D Stage X

50. Common Assessment 3.10
6. The diagram shows the life cycle of a darkling beetle. Which stage is shown at Y? F Adult G Larva H Pupa J Egg

51. Common Assessment 3.10
7. Which simple diagram shows the life cycle of a frog? A C B D

52. Common Assessment 3.10
8. The stages of an organism’s development are called a ______________. F migration cycle. G life cycle. H hibernation cycle. J food chain.

53. Common Assessment 3.10
9. Which of the following units of measurement would be used for reporting the mass of a poison-arrow frog? A Centimeters B Millimeters C Grams D Metric ton

54. Common Assessment 3.10
10. Which BEST shows the life cycle of a berry bush? F H G J

55. Common Assessment 3.10
1. Describe in your own words the life cycle of a tomato plant.

56. Common Assessment 3.10
2. Describe two ways the plant has changed.