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alukav5142 [94]
3 years ago
6

What are 3 ways humans are harming the environment?

Biology
2 answers:
kolbaska11 [484]3 years ago
7 0
Rubber factories, smoking cigarettes, and cars.
Usimov [2.4K]3 years ago
5 0
Littering, smoking and pollution hope i helped best of luck :)
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One way to determine the density of animals in an area is to use the mark-recapture technique. A number of individuals from a po
NNADVOKAT [17]

Answer:

N = 187.55

Explanation:

Here you just need to replace the terms and clear the equation.

You already know that,

  • First capture: 25 prairie dogs.
  • First marked animals: 25 (the whole first capture)

You let these animals leave and then you made another capture.

  • Second capture: 135 prairie dogs
  • Already Marked animals: 18 (these 18 dogs were caught in the first capture and marked before releasing them)  

To know the size of the prairie dogs population you just need to use the following equation and clear N, which is the value that you are looking for.  

Number of individual marked in first catch/Total population size, N = Number of individual marked in 2nd catch / Total number of 2nd catch

  • Number of individual marked in first catch = 25 dogs
  • Total population size, N = this is what we want to know
  • Number of individual marked in 2nd catch = 18 dogs
  • Total number of 2nd catch = 135 dogs

So now, we need to replace terms

25 / N = 18 / 135

25 / N = 0.1333

N = 25 / 0.1333

N = 187.55

4 0
3 years ago
When does facilitated diffusion occur
irina1246 [14]

Answer:

Facilitated diffusion takes place due to a difference in concentration on both sides of the membrane, in the direction of the lowest concentration, and does not require energy.

6 0
3 years ago
There is a population of beetles that typically have black wings. A scientist studying these beetles knows that their eggs hatch
ioda

Answer:

A) Black winged beetles have higher fitness than white winged beetles

Explanation:

Because after the white winged beetles have played their eggs they die

7 0
3 years ago
The chart shows characteristics of two groups of reptiles.
nignag [31]

Answer:

X: Crocodilians

Y: Snakes

Explanation:

7 0
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If we have a vegetarian person who needs 2,000 calories a day, how many calories must the plants they eat produce?
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Answer:

as a vegetarian im confused, wouldnt it be 2,000

Explanation:

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