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4 years ago

What is the main difference between the central nervous system (CNS) and the peripheral nervous system (PNS)?

2 answers:

6 0

The Central Nervous System (CNS) includes all of the nerves of the Brain and Spinal Cord.

The Peripheral Nervous System (PNS) includes all of the nerves both sensory and motor connecting the CNS to the muscles, organs, and sensory structures of the body.

Mashcka [7]4 years ago

5 0

Answer:

CNS includes the brain and spinal cord which analyze sensory inputs, whereas PNS consists of neurons and nervous tissues that carry the information.

Explanation:

The nervous system has two distinct main parts - the peripheral nervous system (PNS) and the central nervous system (CNS).

CNS contains the spinal cord and the brain serves the nervous system's command center. the spinal cord and the brain analyze sensory inputs what it exactly means and quickly orders the body parts that time to move faster.

PNS consists of the nerves, which leave the brain and the spinal cord and travel to evident regions of the body. The main job of PNS is to send information collected by the sensory receptors to the CNS.

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Imagine that y-axis of each graph describes the rate of photosynthesis. Which of the graphs represents the

astraxan [27]

Answer:

a. A describes the effect of light intensity on photosynthesis.

Explanation:

In plants and other primary producers, photosynthesis is a biological mechanism that is vital to energy production. Energy-containing carbohydrates are derived from light, water and carbon dioxide in the form of glucose molecules.

The waste product oxygen is released as a result. Photosynthesis depends on many variables, including:

carbon dioxide concentration,
ambient temperature
and light intensity

It is a rate-limited reaction. Since photons or particles of light provide the energy required for the reaction, high intensities of light increase the photosynthetic rate. From the graph shown, as the intensity increases steadily, so does the rate- but at too high of an intensity, it ceases to affect the rate of photosynthesis, which becomes constant or plateaus.

Beyond this point, either the supply of carbon dioxide or the temperature limits the reaction. For instance, at high intensities tissues may even be damaged by high temperatures or heat.

6 0

3 years ago

How would scientists with Viewpoint #1 respond to the description the herpes virus?

I am Lyosha [343]

Answer:

A virus is alive; it can respond and/or adapt to changes in the environment.

Explanation:

Herpes simplex virus 1 is a sexually transmitted virus that causes genital herpes.The herpes virus is contagious can be spread through contact with saliva, such as sharing drinks. The virus is alive and responds to changes in environment by adapting to living in body fluids.

6 0

4 years ago

Read 2 more answers

The self-awareness of being romantically or sexually attracted to a defined group of people is referred to as:_________

alexira [117]

The self-awareness of being romantically or sexually attracted to a defined group of people is referred to as sexual orientation

<h3>What is self management?</h3>

Self management is a personal skill that allows a person to control and regulate their emotions, thinking and behaviour very effectively in every situation.

The main factor of self management is positivity it means when you feel positive and motivated you can control yourself better and by creating short- term as well as long- term goals for achieving first of all develop positive outlook.

There are several self management skill that helps us to maintain the goal of self management and they are time management, problem solving, decision making skill, including confidence as well as self protection.

Therefore, self-awareness of being romantically or sexually attracted to a defined group of people is referred to as sexual orientation

Learn more about self management here:

brainly.com/question/13368948

#SPJ4

8 0

2 years ago

22. A plant geneticist is investigating the inheritance of genes for bitter taste (Su) and explosive rind (e) in watermelon (Cit

mylen [45]

Answer:

See the answer below

Explanation:

Using the formula for calculating Chi square ( $X^2$ ):

$X^2$ = $\frac{(O - E)^2}{E}$ where O = observed frequency and E = expected frequency.

The observed frequencies for the four phenotypes are 88, 62, 62, and 81 respectively.

For the expected frequency, the phenotypes are supposed to assort in 9:3:3:1 according to Mendel ratio.

Hence, expected frequencies are calculated as:

phenotype (1) = 9/16 x 293 = 164.81

phenotype (2) = 3/16 x 293 = 54.94

phenotype (3) = 3/16 x 293 = 54.94

phenotype (4) = 1/16 x 293 = 18.31

The $X^2$ is calculated thus:

Phenotype O E $X^2$

1 88 164.81 $\frac{(88 - 164.81)^2}{164.81}$ = 35.80

2 62 54.94 $\frac{(62 - 54.94)^2}{54.94}$ = 0.91

3 62 54.94 $\frac{(62 - 54.94)^2}{54.94}$ = 0.91

4 81 18.31 $\frac{(81 - 18.31)^2}{18.31}$ = 214.64

Total $X^2$ = 35.80 + 0.91 + 0.91 + 214.64 = 252.26

To the nearest tenth = 252

Degree of freedom = n - 1 = 4- 1 = 3

$X^2$ tabulated = 7.815

The calculated  $X^2$  exceeds the critical value, hence, the null hypothesis is rejected. The two genes did not assort independently. 

4 0

3 years ago

United States residents are how many times more likely to die from breast cancer than residents of Hungary?

kykrilka [37]

Answer:

~3 times...

Explanation:

Well...the data provided by different institutes of oncology were highly random both in US and Hungary. but by using Chi-Square probability analysis in both of the countries the ration comes as 2.87:1 that means residents of US are 3 times more likely to die from breast cancer than Hungarians. A 5% confidence interval was used in this test with percentages 31.8% for us and 11.9% for Hungarians.

8 0

3 years ago