1. 5th 6 Weeks Review

2. Which of the following is a living factor in the environment?
A: animals
B: air
C: sunlight
D: soil
Correct Answer: A- Animals

3. What is made up of the populations in an area?
A: niches
B: habitats
C: community
D: ecosystem
Correct Answer: C- Community

4. What does the number of individuals in a population that occupies an area of a specific size describe?
A: clumping
B: size
C: spacing
D: density
Correct Answer: D- Density

5. Which of the following animals is an example of a herbivore?
A: wolf
B: moss
C: tree
D: rabbit
Correct Answer: D- Rabbit

6. What term best describes a symbiotic relationship in which one species is helped and the other is harmed?
A: mutualism
B: parasitism
C: commensalisms
D: consumerism
Correct Answer: B- parasitism

7. Which of the following conditions tends to increase the size of a population?
A: births exceed deaths
B: population size exceeds the carrying capacity
C: movements out of an area exceed movements into the area
D: Severe drought
Correct Answer: A- births exceeds deaths

8. Which of the following is most likely to be a limiting factor in a population of fish living in the shallow water of a large lake?
A: sunlight
B: water
C: food
D: soil
Correct Answer: C- food

9. Which of these organisms is a producer?
A: mole
B: owl
C: whale
D: oak tree
Correct Answer: D- oak tree
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10. Which pairs of words is incorrect?
A: Black bear-carnivore
B: Grasshopper-herbivore
C: Pig-omnivore
D: Lion-carnivore
Correct Answer:
A- Black Bear is a omnivore

11. What are tundra and desert examples of?
A: ecosystem
B: biomes
C: habitats
D: communities
Correct Answer: B - Biomes

12. What is a hot, dry biome called?
A: desert
B: tundra
C: coral reef
D: grassland
Correct Answer: A - dessert

13. Where would organisms that are adapted to live in freshwater and salt water be found?
A: lake
B: estuary
C: open ocean
D: intertidal zone
Correct Answer: B - estuary

14. Which biome contains the largest number of species?
A: taiga
B: temperate decorous forest
C: tropical rain forest
D: grassland
Correct Answer: C – tropical rain forest

15. Which biome contains mostly frozen soil called permafrost?
A: taiga
B: temperate rain forest
C: tundra
D: temperate deciduous forest
Correct Answer: C - Tundra

16. Correct Answer: B - Lichens
A new island is formed from a volcanic eruption. Which species probably would be the first to grow and survive?
A: oak trees
B: lichens
C: grasses
D: ferns
Correct Answer: B - Lichens

17. B: secondary succession C: tertiary D: magma
What would the changes in communities that take place on a recently formed volcanic island best be described as?
A: primary succession
B: secondary succession
C: tertiary
D: magma
Correct Answer: A – Primary Succession

18. What is the stable stage of succession?
A: pioneer species
B: climax community
C: limiting factors
D: permafrost
Correct Answer: B – Climax Community

19. Correct Answer: B - rivers
Which of the following aquatic ecosystems would have the lowest salinity?
A: estuaries
B: rivers
C: coral reef
D: open oceans
Correct Answer: B - rivers

20. Correct Answer: B – intertidal zone
Which ecosystem would experience the most drastic changes in a 24-hour period?
A: open ocean
B: intertidal zone
C: lake
D: coral reef
Correct Answer: B – intertidal zone

21. A farmer noticed a large quantity of aphids in his garden
A farmer noticed a large quantity of aphids in his garden. The next day he purchased a large quantity of lady bugs and released them into his garden. What is the likely hypothesis he was trying to test?

22. Answer is:
Predator - Prey

23. Give at least one reason why many animals that live in the desert are able to survive without directly drinking water.

24. Answer is…
Desert animals get water from the plants they eat.