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Living And Nonliving Interactions
Test Description: How to living and nonliving things interact in ecosystems?
Instructions: Answer all questions to get your test result.
1) 1. Which of these describes one or more living organisms that depend on another living organisms to survive?
A
A. bacteria living in the mouth of a horse
B
C. Mold living on a hard, rocky surface
C
B. ivy plants growing up a fence to obtain more sunlight
D
D. An angelfish releasing carbon dioxide into pond water
2) 2. Aquatic plants have adaptations that help them live in water. For example, the leaves are of a plant float on the water. The leaves help plants . . .
A
B. Stay anchored
B
D. Capture fish
C
C. avoid predators
D
A. absorb sunlight
3) 3. Tropical climates have warm temperatures and abundant sunlight all year. What must be available for plants in these climate to make their own food throughout the year?
A
B. Birds
B
D. Water
C
C. shade
D
A. bacteria
4) 4. The roots of the prickly pear cactus spread out in a wide underground network. How does this type of root system benefit a prickly pear cactus?
A
A. by producing fruit and storing water
B
C. by absorbing water and supporting the plant in lose, sandy soil
C
D. by releasing nutrients into the sandy soil and taking in oxygen
D
B. by capturing sunlight and getting rid of waste materials
5) 5. Some beetles break down the remains of dead animals. Some mushrooms break down the remains of dead trees. How do these actions most benefit plants?
A
A. by returning nutrients to the soil
B
D. by decreasing the population of herbivores
C
C. by making space for new animals
D
B. by releasing oxygen into the air
6) 6. In fall and winter many trees lose their leaves in response to cooler temperatures and-
A
A. a decrease in average wind speed
B
D. more direct sunlight
C
C. an increase in humidity
D
B. fewer hours of daylight
7) 7. A container for a worm farm needs to have a lid, but the lid must be left partially open because the worms required which of the following in order to survive?
A
C. carbon dioxide
B
B. sunlight
C
A. oxygen
D
D. none of the above
8) 8. Which of the following organisms obtain energy without depending on another organism?
A
D. Grizzly Bear
B
B. Cotton tail rabbit
C
C. Mountain lion
D
A. Oak Tree
9) 9. Which of the following organisms most likely compete for the same food in their environment?
A
A. zebras and lions
B
C. Eagles and Ravens
C
D. Sharks and Bears
D
B. elephants and tigers
10) 10. Which of the following observation shows living organisms interacting with another living organism?
A
C. a bee collecting pollen from a tree
B
D. a hawk circling in the air
C
A. fire ant digging a tunnel in sandy soil
D
B. a blue jay drinking water from a puddle
*select an answer for all questions
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