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kiruha [24]
3 years ago
7

Can changing diet reduce high blood pressure? Vegetarian diets and low-salt diets are both promising. Men with high blood pressu

re are assigned at random to one of four diets: (1) normal diet with unrestricted salt; (2) vegetarian with unrestricted salt; (3) normal with restricted salt; and (4) vegetarian with restricted salt. This experiment has
Biology
1 answer:
valina [46]3 years ago
6 0

Answer:

The correct answer is - 2 variable or factors,

1. normal or vegetarian diet, and

2. restricted or unrestricted diet.

Explanation:

The presented experiment is designed to see if the diet has a role in reducing high blood pressure. In this experiment two factors, a low salt diet and a vegetarian diet believed to have a promising effect.

Men with high blood pressure are assigned to random diets but these randoms diet has two common factors which are normal or vegetarian diet and restricted or unrestricted salt diet to check their individual effect on reducing high blood pressure.

Thus, the correct answer is -  2 variable or factors,

1. normal or vegetarian diet, and

2. restricted or unrestricted diet.

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Madison lives near the ocean. She’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of
aivan3 [116]

The given question is incomplete, the complete question is:

Madison lives near the ocean. She’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. If Madison plans to test this hypothesis, she will have to deal with the following variables in her experiment: dependent variable: independent variable: one possible confounding variable:

Answer:

A variable, which is under study or observation in an experiment and changes concerning the independent variable is termed as a dependent variable. Based on the given experiment, Madison is checking the influence on the progression of corrosion of metals concerning the variations in the concentration of salt. This shows that the extent of corrosion of metals is a dependent variable.  

A variable, which can be controlled or monitored like increased or decreased, and one is familiar with is termed as an independent variable. This variable is not affected by another variable, like a change in the concentration of salt is the air may exhibit an effect on the corrosion of the metal, however, the process that is, the corrosion of metals does not affect the concentration of salt in the air. Hence, the independent variable is the salt concentration in air.  

A variable that possesses the tendency to change or influence both the independent and dependent variables is known as a confounding variable. If the airspeed is higher than it will carry the salt particles at a brisk rate and speed resulting in enhanced corrosion of metals. Likewise, if the speed of air is slower, there will be a reduction in the corrosion of metals. Hence, the confounding variable is the speed of air.  

8 0
3 years ago
Ethical concerns about the development and use of biotechnology include all of the following except________.
tamaranim1 [39]

The correct answer is option D, "concerns about the development of new weapons"

Reason -

There is no link of genetic engineering with the creation of deadly weapons and those too physical weapons.

The common ethical concerns related to biotechnology experiments consists of the following –  

a) Leaking of genetic information of an individual

b) Creation of harmful species

c) Development of harmful disease causing factors.  

d) And a lot of morality issues such as harming the privacy of an individual etc.  

Thus Option D is incorrect

5 0
3 years ago
Read 2 more answers
A boundary between nonsedimentary and sedimentary rocks is an example of which type of unconformity?
Crazy boy [7]

Answer:

Disconformity

Explanation:

Disconformity is the breaking end between non sedimentary and sedimentary rocks. It is when parallel layers between sedimentary rocks have no contacts with each other which indicate period of erosion or non disposition.

6 0
3 years ago
Muchos medicamentos son productos
3241004551 [841]

Answer:I dont know

Explanation:

3 0
2 years ago
For an offspring to ___________ a recessive trait, both parents must have at least one
Crazy boy [7]

For an offspring to dominate a recessive trait, both parents must have at least one dominant allele in their genotype.

8 0
3 years ago
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