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Darya [45]
3 years ago
5

What is DNA and what is it for

Biology
1 answer:
Artemon [7]3 years ago
6 0
DNA stands for Deoxyribonucleic Acid. DNA holds genetic information that determines and organisms traits. DNA contains the instructions for making proteins.
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Arrange these elements of the intrinsic conduction system in the order that a depolarizing impulse travels during a normal heart
zlopas [31]

Answer:

SA Node

Inter-nodal Pathways

AV Node

AV Bundle

Bundle Branches

Purkinje Fibers

The SA nodes functions first for setting pace for the heart, then the inter-nodal pathway make link b/w SA and AV node. AV node is site of delay when contraction of atria occurs. AV bundle is the mean of electrical link b/w atria and ventricle. The conveying of impulse to the inter-ventricular septum occurs through bundle branches, while conveying of impulse throughout and along the walls of ventricle occurs through Purkinje fibers.

7 0
3 years ago
In conditions of stress or fear, the human adrenal gland may produce adrenaline. Which of the following is an effect adrenaline
kvasek [131]
<span>Adrenaline can change many things including increasing blood pressure, heart rate, reflexes, physical and psychological capabilities, and many more. When under stress, adrenaline is released to help the body defend itself from that stress. That's why when children are drowning, for example, those saving them must be extremely careful because a child can due to adrenaline become even stronger than an adult and can accidentaly drown the adult.</span>
8 0
3 years ago
Which of the following organisms is likely to be most affected by biomagnification of a pollutant?
gizmo_the_mogwai [7]

Answer:

Hawk is the correct answer. Hope it helps!

6 0
2 years ago
Which of the following is true?
Leokris [45]
Im going to go with C only because most dont make sense. 
5 0
2 years ago
What serves as the body's chief storage site for lipids?
Len [333]
The white adipose serves as the body's chief storage site for lipids. 
The body only uses the amount of nutrients and energy it needs to function, any excess after that is what is stored in the adipose tissue. Lipids are stored in the body in different forms such as, triglycerides, fat cells, cell membranes and lipoproteins. Adipose tissue, or fat, is an anatomical term for loose connective tissue composed of adipocytes. 
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3 years ago
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