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Tresset [83]
3 years ago
5

What macromolecule is the primary energy source for organisms?

Biology
1 answer:
Liula [17]3 years ago
3 0
<span>Carbohydrates are the primary source of energy for the body.
That's your answer.
</span>
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Why does the actions of the thymus demonstrate a close functional connection between the lymphatic system and the endocrine syst
OleMash [197]

Answer:

The Thymus is a unique gland which protects the body against autoimmunity when the immune system act against itself.Hence the Thymus plays a significant role the dual systems i.e.,the lymphatic system (body’s defensive mechanism) and the endocrine system

Explanation:

The Thymus is special gland located anteriorly to the chest directly behind the sternum and in between the lungs. Active until puberty and gradually shrinks to become fat after puberty.

Function: Prior to birth and during childhood thymus engage in producing and maturation of T-lymphocytes or T-cells a particular type of white blood cells which defence the body against infectious disease germs.Though the organ does not function throughout the life span but it plays a significant role protecting the body against autoimmunity refers to an immune system works against itself .Therefore the thymus plays a key role in lymphatic system and an endocrine system.

Secretion:Thymus secretes Thymosin a hormone it instigates the development of T-Cells ( disease resisting cells) Thymosin stimulates the development of T-Cells until a human attains its puberty. At the age of 75 thymus becomes a fatty tissue.

8 0
3 years ago
What would be an immediate effect of the construction of roads and parking lots on the transfer of energy from producers to cons
motikmotik
It would be C because of the parking lots and roads there would be more producers

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7 0
3 years ago
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Which statement below is true of both chloroplasts and mitochondria?
MissTica

Answer:

Its either B or D but i think its B

Explanation:

i hope it B if not then its D

7 0
3 years ago
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.

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3 years ago
Butterflies and moths are examples of ________ (check all that apply)
Ugo [173]
<span>Lepidoptera

Hope this helps.</span>
6 0
3 years ago
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