Living Things - characteristics and needs

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Last updated 3:16 PM on 12/15/23
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24 Terms

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organism

A living thing

<p>A living thing</p>
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cell

Basic unit of life

<p>Basic unit of life</p>
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unicellular

Made of a single cell

<p>Made of a single cell</p>
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multicellular

Made up of more than one cell.

<p>Made up of more than one cell.</p>
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stimulus

A change in an organism's surroundings that causes the organism to react

<p>A change in an organism's surroundings that causes the organism to react</p>
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response

An action taken or change in behavior due to a stimulus.

<p>An action taken or change in behavior due to a stimulus.</p>
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development

The process of becoming more complex.

<p>The process of becoming more complex.</p>
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asexual reproduction

A reproductive process that involves only one parent and produces offspring that are identical to the parent.

<p>A reproductive process that involves only one parent and produces offspring that are identical to the parent.</p>
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sexual reproduction

A reproductive process that involves two parents that combine their genetic material to produce a new organism that differs from both parents

<p>A reproductive process that involves two parents that combine their genetic material to produce a new organism that differs from both parents</p>
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autotroph

An organism that makes its own food

<p>An organism that makes its own food</p>
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heterotroph

An organism that cannot make its own food, and thus must ingest other organisms.

<p>An organism that cannot make its own food, and thus must ingest other organisms.</p>
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homeostasis

An organism's ability to keep the proper conditions inside no matter what is going on outside the organism. Example: keeping the same body temperature and water level even if you are standing outside in the cold rain.

<p>An organism's ability to keep the proper conditions inside no matter what is going on outside the organism. Example: keeping the same body temperature and water level even if you are standing outside in the cold rain.</p>
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growth

The process of becoming larger.

<p>The process of becoming larger.</p>
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respiration

The process by which cells combine oxygen with simple food molecules to release the energy they contain

<p>The process by which cells combine oxygen with simple food molecules to release the energy they contain</p>
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grows and develops

The 6 characteristics of living things are: made of cells, made of the chemicals of life, uses energy, reproduces, responds and ________________

<p>The 6 characteristics of living things are: made of cells, made of the chemicals of life, uses energy, reproduces, responds and ________________</p>
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living space

The 4 needs of living things are: homeostasis, food, water and ______________

<p>The 4 needs of living things are: homeostasis, food, water and ______________</p>
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carbohydrates

The chemicals that all living things are made of are: proteins, lipids, water, nucleic acids and _________

<p>The chemicals that all living things are made of are: proteins, lipids, water, nucleic acids and _________</p>
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reproduces

The 6 characteristics of living things are: made of cells, made of the chemicals of life, uses energy, responds, grows and develops, and ________________

<p>The 6 characteristics of living things are: made of cells, made of the chemicals of life, uses energy, responds, grows and develops, and ________________</p>
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proteins

The chemicals that all living things are made of are: lipids, water, carbohydrates, nucleic acids and _________

<p>The chemicals that all living things are made of are: lipids, water, carbohydrates, nucleic acids and _________</p>
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food

The 4 needs of living things are: homeostasis, water, living space, and ______________

<p>The 4 needs of living things are: homeostasis, water, living space, and ______________</p>
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water

Most abundant chemical of life. Needed for chemical reactions.

<p>Most abundant chemical of life. Needed for chemical reactions.</p>
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energy

Carbohydrates are the main source of _____________ for an organism.

<p>Carbohydrates are the main source of _____________ for an organism.</p>
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proteins and lipids

2 chemicals of life that are used to build new cell parts.

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nucleic acid

Chemical of life that is the genetic material for the cell - usually DNA.

<p>Chemical of life that is the genetic material for the cell - usually DNA.</p>