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Natasha2012 [34]
3 years ago
14

Ecological Levels of Organization:​

Biology
1 answer:
zvonat [6]3 years ago
7 0

Explanation:

organism

population

biological community

landscape

biome

biosphere

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13 - D

14 - D

15 - C

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for 13

A molecule is two or more atoms chemically combined

An example would be carbon dioxide which contains the two atoms, carbon and oxygen

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Electrons, Protons and Neutrons are all parts of an atom therefore they cannot be classified as molecules.

For 14

Remember an atom is the most basic unit out of the units we are talking about

The answer would be D

Reasons its not the other answers

Water is considered to be a molecules as it contains two or more atoms (hydrogen and oxygen)

Air is considered to be a mixture as it contains oxygen and nitrogen which can be separated

Salt is considered to be a compound because salt is made up of two atoms (chloride and sodium) in which they are held up by an ionic bond

For 15

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Other notes:

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the main difference between compounds and molecules is how they are held together

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compounds and molecules  are made up of atoms that cannot be separated

Mixtures - A mix of two or more substances that can be separated

3 0
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