Biology: Definition of Life

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Scientists have standardized a concise definition of life

false

The living organism has specialized structures that provide information about the changes in the environment. This characteristic of life is called

irritability

The word biology means the study of _____

life

The ability to obtain nutrients, take in oxygen, and transform them into energy and cellular components is called

metabolism

(Select all that apply.) Characteristics which are always present in living organisms are _____

metabolism complexity reproduction growth irritability adaptability response (unsure on these...)

If a crystal enlarges as new molecules are added, is this a form of biological "growth"?

no

If a rock disintegrates by chemical weathering into small grains of similar composition, would this be considered reproduction?

no

In order for an organism to exhibit continuation of its kind, _____ is essential

reproduction

Characteristics of life are used to determine if an organism possesses life

true

It is not always possible to clearly distinguish life from non-life

true

Scientists use the characteristics of life to determine life on earth and other planets

true


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