Tag Archive | "coral reef ecosystem"

Please Help Best Answer Get 10 Points.?


Which of these factors is biotic? (1 point) insects water sunlight soil
Which of these factors is abiotic? (1 point)
bird
frog
hawk
wind
3. Floods, droughts, or cold spells affect the _____ of an ecosystem. (1 point)
abiotic factors
balance
materials
niche
4. Ecologists count the number of frogs living in a pond community to determine the _____. (1 point)
balance
limiting factors
organisms
population density
5. The tree a squirrel lives in is its _____. (1 point)
community
ecosystem
habitat
niche
6. A living thing that uses energy, reproduces, and grows is called a(n) _____. (1 point)
abiotic factor
ecosystem
habitat
organism
Coral Reef Ecosystem:
sand,
rocks seawater sharks algae sea horse, use this to answer 7 and 8
7. On the coral reef ecosystem figure shown, which factor is biotic? (1 point)
rocks
sand
sea horse
water
8. On the coral reef ecosystem figure shown, which factor is abiotic? (1 point)
algae
sharks
rock
sponges

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