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Flauer [41]
3 years ago
6

Blood pressure results from the force of blood fluids pressing against the walls of blood vessels. Hypertension, or high blood p

ressure, is often caused by a constriction of the blood vessels by fatty deposits in artery walls. However, another cause of high blood pressure can be the intake of too much sodium in foods and table salt.
Why would too much salt intake cause someone to develop high blood pressure?
A) Salt in the bloodstream causes fluids to enter the blood from surrounding cells, due to osmosis.
B) Salt in the bloodstream causes fluids in the blood to leave and go to surrounding cells, due to osmosis.
C) People that take in too much salt will drink more water to balance out the salt, which raises blood pressure.
D) Extra salt solidifies in the bloodstream and blocks the blood vessels, causing them to narrow, and blood pressure to go up.
Biology
2 answers:
Mars2501 [29]3 years ago
8 0

The right answer is A)

Sodium is a mineral element essential for the proper functioning of the body. He is also very present in our plasma ...

High salt intake increases blood pressure and the risk of cardiovascular disease. High blood pressure (HTA) is a very common chronic disease, and only half are well treated and controlled. The risk of developing cardiovascular diseases (infarction, stroke, etc.) increases gradually when the blood pressure exceeds 115/75 mmHg. HTA kills nearly 8 million people every year worldwide.

Aliun [14]3 years ago
5 0
A. Salt in the bloodstream causes fluids to enter the blood from surrounding cells, due to osmosis.
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All domestic mammals have _______ cervical vertebrae.
Sauron [17]
All domestic mammals have seven cervical vertebrae.
3 0
3 years ago
Read 2 more answers
The steps or parts of a pattern of propaganda include organization, argument, publicity and ______ .
ioda

Answer:

Persuasion

Explanation:

Propaganda is manipulation with public opinion, it is a technique of influencing people’s actions through arguments and persuasion. Propaganda can be done in various ways and some of them are oral, written and visual ways.

As propaganda’s purpose is to convince people in something, techniques used for propaganda are founded on psychological research. People who use propaganda use arguments that don’t have to be valid but have to be convincing.

7 0
3 years ago
Birds are the main predators of these beetles; they hunt the beetles by sight and pick them off the tree bark where they feed. A
Alinara [238K]

Complete question:

1. The graph below depicts the frequency of expression of the coloration of beetles on an island:

Graph is the 1st Pic --> Attached files    

Birds are the main predators of these beetles; they hunt the beetles by sight and pick them up off of the tree bark where they feed. A logging company clears the trees off of the island and plants younger trees as a replacement. Trees with light bark are planted on one side of the island and trees with dark bark are planted on the other side of the island. What do you predict would happen to the range of coloration in the populations of beetles on each side of the island?

Select TWO answers, one to represent the beetles living on the light colored trees and one to represent the beetles living on the dark colored trees. (2 points)

A. graph 2 below

B. graph 3 below

C. graph 4 below

D. graph 5 below

Answer:

B. graph 3 below

D. graph 5 below

Explanation:

The original population of beetles (Graph 1) shows that most individuals had an intermediate phenotype between dark and light color. The graph expresses its highest point in the middle of the phenotypic ax, while the curve´s tails coincide with light and dark colors.

Probably, most of the trees inhabiting the whole island had some darkish color tone, which beetles used to camouflage and avoid predation.

When the company cleared the area and reforested, they planted light trees on one half and dark trees on the other half of the island. This change in the environment modeled the beetled phenotype, together with predation pressure.

<em>If we consider the whole original population, we should say that it went under a disruptive selection.</em> But if we think about the sides of the island separately, we could say that the population living on each side went under directional selection. We are not thinking about the whole population of beetled inhabiting the whole island, but two groups inhabiting each side of the island.

  • Graph 3 represents the beetles inhabiting the part of the land with dark trees. The population went under directional selection, and most of them turned into dark-colored to camouflage with the substrate in which they live.
  • Graph 5 represents the beetles inhabiting the other part of the land with light trees. The population went under directional selection, and most of them became light-colored to camouflage with the substrate in which they live.

8 0
3 years ago
The genes for miniature wings (m) and garnet eyes (g) are approximately 8 map units apart on chromosome 1 in Drosophila. Phenoty
Anestetic [448]

The following phenotypic classes reflect offspring that were generated as a result of a crossover event

  • wild type
  • miniature wings
  • garnet eyes

Explanation:

When the miniature wings and garnet eyes links up with the 8 map unit that are present between them. After that the presence of two recombinant classes must complement together and make 8% of total i.e. they contribute 4% each. together the parental classes make up to 92% by contributing 46% one.

This can be understood through a phenotypic ratio calculation, which can be expected from it.

wild type: 4% x 800 = 32

miniature wings: 46% x 800 = 368

garnet eyes: 46% x 800 = 368

miniature wings, garnet eyes: 4% x 800 = 368

5 0
3 years ago
Extrusive rocks have larger grains than intrusive rocks.true or false and why
maxonik [38]

False because extrusive rocks have fine-grained texture due to the rapid cooling of magna above the earth surface. On the other hand extrusive rocks have course grained texture due to slow cooling of magna beneath the Earth's surface

5 0
3 years ago
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