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muminat
3 years ago
9

Hurry answer this pls so i can pass

Chemistry
1 answer:
slavikrds [6]3 years ago
5 0
I believe it’s active transport hope it helps:)
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Which of the following describes a property of water that helps sustain marine life forms?
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Answer:

Open spaces in water's solid structure makes its solid state less dense than its liquid state.

Explanation:

  • Water unlike other liquids is special. It contracts when cooled, down to a temperature of 4°C but thereafter begins to expand as it reaches 0°C and turns into ice.
  • This property is useful for the preservation of marine life in very cold temperatures. During winter, the surface water in water lakes and rivers starts cooling. Upon reaching the temperature of 4°C, the surface water descends to the bottom as it denser.
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How do biologists learn which organisms we're the ancestors of today's plants?
Norma-Jean [14]

by classifying into categories that get smaller and smaller  these are the classification steps :  life , domain , kingdom , phylum , class,  order , family , genus , and species every time you narrow it down the option gets smaller and smaller till there's none left except the species it self .

 

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2 years ago
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A gravel can be broken down into different kinds of substances by physical processes. No chemical reactions are needed to separa
Vlada [557]

Answer:

MIXTURE

Explanation:

A mixture is a substance composed of a combination of other different substances. These component(s) of a mixture are physically combined, meaning that there is no chemical linkage between the individual components/constituents of a mixture.

This is the case of the gravel described in this question. The components of gravel can be separated using physical means because they are not chemically bonded to one another, hence, no chemical reactions are needed to separate different parts of gravel into pure substances. This makes gravel a MIXTURE.

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3 years ago
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Select the word or phrase from the drop-down menu to describe ionic compounds. A formula unit represents the simplest ratio of e
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CRYSTAL

MANY ATOMS THAT ARE ARRANGE IN A REGULAR PATTERN

1:1

Explanation:

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2 years ago
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