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Nina [5.8K]
3 years ago
7

Why is high blood pressure damaging to the heart?

Biology
1 answer:
mart [117]3 years ago
3 0
E fdg dgr dgr d gd rgdrg dhh 
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Hurry for a brainlest!
Whitepunk [10]
The main culprits in their demise are invasive, disease-carrying mosquitos introduced to Hawaii. Avian malaria and other diseases have decimated the birds’ populations.

The ‘i‘iwi and similar species have gradually sought refuge at higher, cooler elevations where the mosquitos can’t reach them. But researchers say that climate change is warming those habitats and allowing the mosquitos to reach the birds.
6 0
2 years ago
The diagram shows a food chain from a forest ecosystem.
Oduvanchick [21]

If there are 250,000 kilocalories (kcal) of energy in the grasses, approximately how many kcal of energy are in the mice is 2.5 kcal.

<h3>What is Trophic degree? </h3>

This is described as the location of an organism withinside the meals chain. Energy waft withinside the atmosphere includes 10% of the electricity withinside the decrease trophic level being transferred to the following trophic degree.

  • In this situation grass belongs to the primary trophic degree.
  • Energy of grass (degree 1)=250c Kcal Level 2 = 10/100 * 25000Kcal = 2500 Kcal.
  • Level 3 = 10/100 * 2500Kcal = 250Kcal
  • Level 4=10/100*25=2.5 Kcal.

Read extra approximately Trophic level:

brainly.com/question/1236573

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3 0
2 years ago
The double helix structure of DNA
dangina [55]

Answer:

The double-helix structure of DNA: <u><em> Watson, Crick, Franklin </em></u>

The chemical composition of proteins: <u><em>Mulder   </em></u>

The monomer of nucleic acids:<u><em> Levene</em></u>  

6 0
3 years ago
What technique is used to separate the different cell parts? Select one: a. all of the above b. microscopy c. cell fractionation
enot [183]

Answer:

The correct answer is c. cell fractionation

Explanation:

Cell fractionation is the technique which allows different cells part to be separated from each other on the basis of their density gradient by using a centrifuge.

In cell fractionation, first the cell wall and membrane of cells are broken by chemical, physical or mechanical method. Then the cell component can be separated by centrifuging them at different rpm.  

Components that have higher density can be found in the bottom and the light density can be found on top of the tube. Therefore the correct answer is c. cell fractionation.

8 0
4 years ago
Which organism is an example of a producer ?
NikAS [45]

Answer:

Good examples include cyanobacteria and green and purple sulfur bacteria. Producers are organisms that are capable of producing their own food using water, light and other chemicals. They are also known as autotrophs.

Explanation:

7 0
4 years ago
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