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tino4ka555 [31]
3 years ago
15

QUESTION 10 For scientists, an element (like gold) is defined by

Biology
1 answer:
vampirchik [111]3 years ago
7 0

Answer:

For scientists, an element is defined by THE NUMBER OF PROTON IT CONTAINS.

Explanation:

In science, an element is defined as the simplest chemical substance that can not be further broken down by mean of chemical reaction. Each element is made up of atoms and the atoms have specific number of electrons and protons. The number of proton that an element has determine its atomic number. For neutral elements the number of proton and electron are always the same.

Today, many chemical elements have been identified and one of them is gold. Gold with chemical symbol Au has atomic number 79, this implies that the neutral gold has 79 electrons and 79 protons.

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The adrenal medulla secretes epinephrine during sympathetic stimulation. Why epinephrine would increase the sympathetic response
user100 [1]

Answer: Because epinephrine activates the fight or flight response, related to the sympathethic response in the body.

Explanation:

The function of the Autonomic Nervous System is the regulation of the system cardiovascular, digestion, respiration, body temperature, metabolism, exocrine glands, and therefore keep the internal environment constant (homeostasis). While sympathetic activity increases in stress, the activity parasympathetic predominates during rest and satiety. The adrenal medulla originates from the neural crest and is composed of neuroendocrine specialized cells and are responsible for the production of catecholamines.

Catecholamines are dopamine, adrenaline, and noradrenaline (epinephrine and norepinephrine). Epinephrine prepares muscles, lungs, and heart for more intense activity, in situations of stress. It promotes the increase in the force of contraction in the muscles and increases in the heart rate. It also leads to increased blood pressure and bronchodilation, for greater availability of O2.

5 0
3 years ago
The lowest layer of a glacier is generally _____.
Savatey [412]

Answer:

A. Ice

Explanation:

glaciers generally accumulate more snow ... and the buried layers slowly grow together to form a thickened mass of ice.

7 0
3 years ago
Read 2 more answers
Developing nations currently produce about how many kcal of food per person per day
NARA [144]
Developing Nations currently produce about 2600 kcal of food per person per day. The growth in food consumption around the world has been accompanied by a significant structural changes and a shift in the diet away from the staple foods such as roots and tubers towards more livestock products and vegetable oils. 
8 0
3 years ago
Is it too late to solve the climate crisis? Why do you think that?
Bumek [7]

Answer:

It's not too late, we still can help as long as we do something. :)

4 0
3 years ago
Research on the physiological states accompanying specific emotions indicates that a emotions such as happiness and surprise are
Vladimir79 [104]

Option D

Research on the physiological states accompanying specific emotions indicates that   each emotion has a unique pattern of sympathetic nervous system activity

<u>Explanation:</u>

Emotions are usually characterized by thinking and sense elements that point our consciousness and control our response. By the sympathetic portion of the autonomic nervous system, sensitive events followed by excitement feel and actions of the physical acknowledgments are produced.

Emotions enhance especially prominent in leading options when the dilemmas among various complicated and contradictory options confer us with a great measure of contingency and vagueness, proffering a comprehensive cognitive study challenging. Urges are powers that control the action. The cognitive evaluation also enables us to encounter a kind of trivial sensations.

8 0
3 years ago
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