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AleksAgata [21]
3 years ago
7

A machine has an efficiency of 70%. How much work does the machine do when 20,000 J of work is done on it?

Biology
2 answers:
zhuklara [117]3 years ago
5 0

Answer:

14,000

Explanation:

Just took the test

Romashka [77]3 years ago
3 0

Answer:

a

Explanation:

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HEEEEEELP. PLEASEEEEEEEEEEEEE
8_murik_8 [283]

there you go ^^

hope i helped

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6 0
3 years ago
Dr. Nachman and his colleagues collected rock pocket mice across 35 kilometers of the Arizona Sonoran Desert, which included bot
vlada-n [284]

Answer:

1)

  • frequencies of light-colored mice  ≅ 0.74
  • frequencies of dark-colored mice ≅ 0.26

2)

  • frequencies of light-colored mice ≅ 0.13
  • frequencies of dark-colored mice ≅ 0.87

3)

  • q² = 0.74
  • p² = 0.02
  • 2pq = 0.24      

4)

  • q² = 0.13
  • p² = 0.4
  • 2pq = 0.46

5)

The dark-colored fur seems to have the greatest overall selective advantage

6)

Dark lava, that changed the color of the substrate, from light to dark.

7)

Because to produce dark color, animals from the different regions suffered different mutations that drove them to have almost the same dark fur color. All of the animals are inhabiting dark substrate, which means that this environmental condition is favoring the same phenotype.

8)

To see if the mice population is evolving, you need to take a sample of animals per year, through many years, and analyze if it is changing or not. If the population is evolving, you will notice a change in the allelic and genotypic frequencies over the years, favoring one genotype or the other. If the population is not evolving, the frequencies will keep equal through the years, it will not change.

Explanation:

Due to technical problems, you will find the complete explanation in the attached files.

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8 0
3 years ago
What is the reason for governments to intercede in the market?
grandymaker [24]
The reason for governments to intercede in the market is to insure there is regulation and no black market trading or selling occurring
with this, the government will create an equal opportunity for everyone to enter the market

Hope this helps
7 0
3 years ago
Hepaticophytes lack stomata and tracheids. What would provide evidence to justify their inclusion in the Bryophytes and not the
tatyana61 [14]

Answer:

The characteristics that define liver diseases within bryophytes are:

They are terrestrial plants unlike Charophytes that are aquatic.

There is development of an embryo that gives rise to a diploid multicellular sporophyte.

3 0
3 years ago
PLeASE HURRY
Stolb23 [73]

Answer: As altitude increases, temperature decreases.

Explanation:

This is because the higher you go the colder it gets, except in the thermosphere, which is the warmest layer of Earths atmosphere.

7 0
4 years ago
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