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Dafna1 [17]
3 years ago
10

Which of these activities can threaten biodiversity? a. habitat preservation b. resource conservation c. increase in pollution d

. having a variety of niches
Biology
2 answers:
vagabundo [1.1K]3 years ago
8 0

Answer:

The Correct Answer is C

Increase in pollution

Explanation:

  • Damage to wildlife and ecosystems caused by pollution can be severed.
  • Nuclear pollution cause mutation and further cause many diseases and disorder which in the long term lead to the extinction of species.

Pollution harms organism in many ways:

  • Water pollution is harmful to aquatic animals.
  • Air pollution degrades forest ecosystem.

 

Alexus [3.1K]3 years ago
6 0
<span>c. increase in pollution </span>
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Help plz
lukranit [14]

Answer:

The correct answer is :

1. increase in cholesterol level leads to more death due to cardiac disease.

2. Hypothesis: "if the cholesterol level is high in an individual, then the risk of death due to cardiac disease is high"

3. Everyone should limit or control their cholesterol level to avoid cardiac disease or it might be lethal.

Explanation:

In this graph, it is represented that there is an increase in the deaths due to cardiac disease with the increase in the cholesterol in the body. The death increase slowly up to 2.5 gL and after that, there is a huge spike in death, which explains that the higher the cholesterol level higher the chances or risk of death due to cardiac disease.

Hypothesis: "if the cholesterol level is high in an individual, then the risk of death due to cardiac disease is high"

On the basis of this one should control its body cholesterol to avoid the chances of cardiac disease as it may lead to death.

5 0
3 years ago
Name three methods of disrupting cells before fractionation
sladkih [1.3K]

Extraction, homogenization, and centrifugation are the three processes in cell fractionation.

Cell fractionation is a method for dividing cellular components while yet maintaining each component's unique functionality. This technique was initially applied to show where distinct biochemical activities are located within cells. Subcellular fractionation is also used to help with illness detection and to offer an enhanced source of protein for further purification. To prevent osmotic damage, tissue is routinely homogenized in an isotonic buffer solution. Grinding, mincing, chopping, pressure changes, osmotic shock, freeze-thawing, and ultrasonic waves are a few of the mechanisms for homogenization. After that, the samples are maintained cool to avoid enzymatic deterioration. It is the development of a uniform mass of cells (cell homogenate or cell suspension).

Learn more about  Subcellular fractionation here:-

brainly.com/question/11076837

#SPJ1

4 0
1 year ago
A friend tells you that she has been saving every 5- dollar and every 10 - dollar bill she has received for the last year . She
makvit [3.9K]

Answer:

Answer is in the explanation.

Explanation:

Let's make a system of equations.

5x+10y=550

x+y=80

Now let's use elimination

-5x-5y=-400

5x+10y=550

__________

5y=150

y=30

Then subsitute 30 in for y to find x. This will leave you with x=50. You will have 50 $5 bills and 30 $10 bills. You can check by subsituting x for 50 and y for 30 in both equations to show why it is correct. Eliminating makes it easier to solve the system of equations.

3 0
3 years ago
Read 2 more answers
Andrea became highly aroused and alert when stung by a bee thanks to the activation of her
serious [3.7K]
Andrea became highly aroused and alert when she was stung by a bee thanks to the activation of her reticular formation. Recticular formation is a nerve network of nuclei clusters found in the human brain stem. It has projection to the thalamus and cerebral cortex that allow it to exert some control over which sensory signals reach the cerebrum and the conscious of the body.
6 0
4 years ago
Major scientific theories include the cell theory, the big bang theory, and the theory of plate tectonics. How are scientific th
vladimir1956 [14]

Answer: A, through extensive testing and the accumulation of several lines of evidence

Explanation:

8 0
3 years ago
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