1. In an ecosystem,______ provide for other organisms.
a.omnivores
b.decomposers
c.herbivores
d.producers

2. Energy in food is Transferred among the organisms in a community through a series of " and be eaten" relationship called a _______
a. photosynthesis
b. food chain
c.respirtion
d. food web¹

3. ______ are the organisms that convert sunlight ,carbon dioxide,and water into sugar and oxygen during photosynthesis.
a.consumers
b.scavenger
c.decomposer
b.producer

4. A series of overlapping food chains is called a _________
a.food pyramid
b.energy pyramid
c.food web
d.pyramid of numbers
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