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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
D. An angelfish releasing carbon dioxide into pond water
C
B. ivy plants growing up a fence to obtain more sunlight
D
C. Mold living on a hard, rocky surface
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
C. avoid predators
B
D. Capture fish
C
B. Stay anchored
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
C. shade
B
D. Water
C
A. bacteria
D
B. Birds
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
C. by absorbing water and supporting the plant in lose, sandy soil
B
B. by capturing sunlight and getting rid of waste materials
C
A. by producing fruit and storing water
D
D. by releasing nutrients into the sandy soil and taking in oxygen
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
B. by releasing oxygen into the air
B
A. by returning nutrients to the soil
C
C. by making space for new animals
D
D. by decreasing the population of herbivores
6) 6. In fall and winter many trees lose their leaves in response to cooler temperatures and-
A
D. more direct sunlight
B
C. an increase in humidity
C
B. fewer hours of daylight
D
A. a decrease in average wind speed
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
A. oxygen
B
D. none of the above
C
B. sunlight
D
C. carbon dioxide
8) 8. Which of the following organisms obtain energy without depending on another organism?
A
B. Cotton tail rabbit
B
C. Mountain lion
C
D. Grizzly Bear
D
A. Oak Tree
9) 9. Which of the following organisms most likely compete for the same food in their environment?
A
D. Sharks and Bears
B
B. elephants and tigers
C
C. Eagles and Ravens
D
A. zebras and lions
10) 10. Which of the following observation shows living organisms interacting with another living organism?
A
A. fire ant digging a tunnel in sandy soil
B
B. a blue jay drinking water from a puddle
C
D. a hawk circling in the air
D
C. a bee collecting pollen from a tree
*select an answer for all questions
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