Life Science Post Question Preview (ID: 8992)


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Where does the major source of energy for ecosystems come from?
a) plants
b) animals
c) sunlight
d) bacteria

Organisms that can make their own food from sunlight are called....
a) decomposers
b) consumers
c) producers
d) carnivores

Grass is eaten by a prairie dog. The prairie dog is eaten by a coyote. This is an example of...
a) an abiotic element
b) an omnivore
c) a herbivore
d) a food chain

What causes the sun's energy?
a) nuclear reactions
b) gravity
c) wind
d) movement

Sugar (glucose) is made by plants using sunlight in a process called?
a) cellular respiration
b) photosynthesis
c) fission
d) fusion

Animals, including humans, meet their energy needs by?
a) photosynthesis
b) sunlight
c) burning fuel
d) consuming other organisms

What process do animals use to produce ATP, which produces energy for growth and function?
a) fusion
b) fission
c) photosynthesis
d) cellular respiration

How do our cells obtain energy?
a) photosynthesis
b) from food
c) nuclear reactions
d) fusion

Which chain correctly shows the process used by cells in cellular respiration?
a) food- ATP-glucose-mitochondria-energy
b) food-glucose-mitochondria- ATP- energy
c) food -energy-ATP-glucose-mitochondria
d) food- mitochondria-ATP-glucose-energy

What two compounds or elements combine to make glucose in photosynthesis?
a) oxygen and carbon
b) carbon dioxide and hydrogen
c) water and carbon
d) oxygen and hydrogen

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