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yKpoI14uk [10]
3 years ago
5

Primary productivity is the rate at which

Biology
1 answer:
Olegator [25]3 years ago
8 0

Answer:

A

Explanation:

Primary productivity, in ecology, the rate at which energy is converted to organic substances by photosynthetic producers.

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In the formula, E K = 1/2 • m • v 2 if mass (m) was doubled, how much would kinetic energy
Viktor [21]

Answer:

mass doubled makes KE twice as large

velocity doubled makes KE 4 times as large

Explanation:

Try it with an example

m = 4

v = 8

KE = 1/2 m * v^2

KE = 1/2*4 * 8^2

KE = 1/2 * 4 * 64

KE = 128

Now double the mass

m  = 8

v = 8

KE = 1/2 8 * 8^2

KE = 1/2 8 * 64

KE = 4 * 64

KE = 256 double what it started out as.

Now do it again.

m = 4     That was the original mass

v = 16

KE = 1/2 4 * 16^2

KE = 2 * 256

KE = 512

When the velocity is doubled the KE becomes 4 times as big.

4*128 = 512

4 0
3 years ago
Generally, human __________ come in 23 matching pairs Group of answer choices cells genotypes phenotypes chromosomes
Oksanka [162]

Answer:

chromosomes

Explanation:

3 0
2 years ago
Which is not considered a macronutrient?
olasank [31]
I believe the answer is B. Carbon is NOT a macronutrient since <span>Nutrients are classified as macronutrients and micronutrients. </span>
3 0
2 years ago
Few producers live deep below a lakes surface. Suggest an explanation for this pattern
taurus [48]
Producers are green plants or photosynthetic organisms that are the basis for the other living parts of any ecosystem. Producers need to have access to light to produce food. Few producers will be found deep below a lakes surface simply because the deeper you travel under water the less light penetrates those deeper layers. 
4 0
3 years ago
Select the goals of conservation agriculture.
sasho [114]

Answer:

Explanation:

Sustainable agricultural practices are intended to protect the environment, expand the Earth's natural resource base, and maintain and improve soil fertility. Based on a multi-pronged goal, sustainable agriculture seeks to: Increase profitable farm income. Promote environmental stewardship.

5 0
3 years ago
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