Preparing the body for the "fight-or-flight" response is the role of the ________.

Biology

1 answer:

den301095 [7]3 years ago

6 0

Answer:

The correct answer is a. sympathetic nervous system.

Explanation:

The sympathetic nervous system involves the rapid involuntary response called fight and flight response during stress conditions. In a stressful condition, our body parts give signals to the hypothalamus which stimulates the sympathetic nervous system of the body.

The activated sympathetic nervous system then stimulates the release of a hormone called adrenalin and nor-epinephrine from the adrenal gland. These stress hormone together with neural activity give rise to fight and flight response.

During this response our mind becomes alter, breathing becomes deep, heart rate becomes high, pupil diabetes, and excess sweating occurs. Therefore the correct answer is a.

You might be interested in

___________ refers to the living parts of an ecosystem.

almond37 [142]

Answer:

Living components...

Explanation:

5 0

3 years ago

Read 2 more answers

A shark and a dolphin have similarly shaped bodies and fins. However, these two organisms are not closely related: The shark is

algol13

Answer:

The preferable option will be - A.

A. similar environments and specific traits increased their chances of survival.

Explanation:

The shark and dolphins have similar body shape and fins. But shark is a fish and dolphin is a mammal.

Both of them are exposed to similar kind of environments. Both of them possess a specific kind of alternative characters and traits.

So, Some species may have similar body structures even if they are not related because they evolved in similar environments and specific traits increased their chances of survival.

7 0

3 years ago

Advancements in the area of agriculture has started to depend on technology sources for better yield and technology advancements

laiz [17]

I think from the above answers the most appropriate is that GPS technology has led to development of robotic tractors for planting, fertilization, and crop harvesting. The global positioning system has found a wide and beneficial use in agriculture, it is used for mapping yields, variable rate planting, variable rate lime and fertilizer application, field mapping for records and insurance purposes among other uses.

6 0

3 years ago

Describe pulmonary circulation pathway using the following terms: deoxygenated blood, left atrium, lungs, oxygenated blood, pulm

ehidna [41]

Definition:
"The type of circulation pathway in which venous blood is passed
from the right atrium of the heart through the right ventricle and
 pulmonary arteries to the lungs where it is oxygenated and its return via the pulmonary veins to enter the left auricle and participate in the systemic circulation".

Explanation:
There are two circulatory path in cardiovascular system namely pulmonary circulation and systemic circulation. Pulmonary circulation path allows for blood circulation through lungs for oxygenation while systemic circulation allows for transport of oxygenated blood to all parts of the body.

Pulmonary Circulation Pathway:
Pulmonary circulation pathway consist of:

1. Superior and inferior vena cava:
De-oxygenated blood from lower parts of the body enter to right atrium through inferior vena cava. Similary, deoxygenated blood from upper parts of the body enter to right atrium through superior vena cava.

2. Right atrium and right ventricle:
From right atrium the blood passes to right ventricle through tricuspid valve.

 3. Pulmonary artery:
Afterwards, the blood enters the pulmonary artery via the pulmonary valve. The pulmonary artery divides into two arteries with one artery entering the right lung and the other artery entering the left lung. When the blood reaches the lungs through the left and right pulmonary arteries, it moves over alveoli via the capillary beds. 

4. Left atrium and left ventricle:
After the blood gets oxygenated, it moves back to the heart and this time moves into the left atrium, completing the pulmonary circulation path.

6 0

3 years ago

What type of TV needs to use an electron gun?

Dafna11 [192]

Answer:

A black-and-white TV has a single electron gun, a cathode Ray tube

8 0

4 years ago