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identify whether the statements apply to autotrophs, heterotrophs, or to both autotrophs and heterotrophs.

Autotrophs are those organism that use of the sunlight to transform the light energy into chemical energy to synthesize their food.

Hence, statement 1 belongs to autotrophs.

All the organism use chemical energy present in the organic molecules to obtain energy in the form of ATP( adenosine triphosphate) molecules.

Hence, statement 2 belongs to both autotrophs and heterotrophs.

Only heterotrophs consumes  organic matter from autotrophs to get energy, while autotrophs can make their own food to obtain energy.

Hence, statement 3 belongs to heterotrophs.

Chlorophyll is the green pigment found in the autotrophs(such as green plants and photosynthetic bacteria) that helps in absorbing sunlight to make food.

Hence, statement 4 belongs to autotrophs.

Calvin Cycle involves a series of reaction which includes multiple reaction in it. This is a part of photosynthesis, performed by autotrophs.

Hence, statement 5 belongs to autotrophs.

Krebs's cycle is a part of cellular respiration which is performed by all the living organism to get energy.

Hence, statement 6 belongs to both autotrophs and heterotrophs.

answer; ///i believe that the correct answer is (a) specialized cells)

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what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements