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lozanna [386]
3 years ago
5

Which movement of substances through a cell membrane against a concentration gradient requires energy?

Biology
1 answer:
Alja [10]3 years ago
3 0

Answer:active transport as it's difinition state

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Which is an example of population density?
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Answer:

The example for population density is "two jaguars per thousand hectares"

Explanation:

To known the population size per unit area we use population density. Or sometimes use it for volume. It is expressed in quantity or in the type.  Mostly used for the living organisms, specifically humans. It's unit is expressed in square kilometers or may say in square mile. It is used for country, city, town and another territory. The negative relationship is found to affect the population density. It depends on the reproduction and survival.

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7. What weather element (temperature, humidity, precipitation, air pressure, wind, and visibility)
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air temperature, air pressure, humidity of the air, amount and kind of cloud cover, amount and kind of precipitation, and speed and direction of the wind.

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Which of the following is the responsibility of a boat operator?
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Where’s the following
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Which of the following are some examples of rapid environmental changes? A) Succession B) Fires C) Weather D) Landslide​
kenny6666 [7]

Weather is an example of rapid environmental changes.

Explanation:

Environment refers to our natural world surroundings. Rapid means fast or quick. Weather around us keeps changing as the earth rotates and revolves around the sun. It changes depending on the month of the year or may change from day to night. You can also note the room temperature at different times in a day, it keeps changing mostly minorly but it does change. There are sunny, foggy, rainy, cold etc days and hence we can say that weather is example of rapid environmental changes.

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Identify the independent and dependent variable for the following statement :
just olya [345]

Answer:

IV: Student grade level (6th, 7th, 8th)

DV: "Loudness" (Operationalizing this variable would be beneficial, or in other words, define a way to measure it)

Explanation:

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