1. What type of consumer that is also referred to as flesh-eaters?
a. carnivore
c. omnivore
b. herbivore
d. scavenger
2. Symbiosis has been defined as 'living together in more or less close
union of two dissimilar organisms.' Which of the following pairs of
organisms best demonstrates symbiosis as defined?
a. heron and carabao
b. fish and plant in an aquarium
c. tobacco flower and honeybee
d. termite and the flagellate inside its hood tube that digests
cellulose
3. What do you call the nonliving things in an environment?
a. abiotic factors
c. limiting factors
b. biotic factors
d. populations
4. What symbiotic relationship refers to one partner benefits and the other is harmed?
a. commensalism
c. parasitism
b. mutualism
d. predation
5. What is the living part of any ecosystem?
a. community
c. habitat
b. environment
d. niche
6. What do you call a group of the same type of organism living together in the same area?
a. community
c. population
b. organisms
d. specie
7. What do you call organisms that make their own food?
a. autotrophs
c. decomposers
d. heterotrophs
b. consumers
8. Why are decomposers valuable to the biosphere?
a. Decomposers consist mostly of bacteria and fungi.
b. Photosynthetic bacteria are also producers.
c. Decomposers return nutrients from the biosphere back to the nonliving world through decay of dead organisms.
d. Decomposers can act even in the absence of oxygen.
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Answer:
1.A
2.B
3.A
4.A
5.B
6.C
7.A
8.C
Explanation:
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