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EastWind [94]
3 years ago
15

Nitrogenous base that occurs in RNA but not in DNA

Biology
1 answer:
hoa [83]3 years ago
6 0
C) the answer is uriacil
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F(x) = x^2-5<br> g(x) = 4x - 4<br> Find (f-g) (5)
7nadin3 [17]

Answer

(f-g) (5) = 4

Explanation:

f(x) = x^2-5

g(x) = 4x - 4

Find (f-g) (5)

= (x^2-5)  - (4x - 4 )

= (5^2-5)  - (4(5) - 4 )

= 20 - 16

= 4

5 0
3 years ago
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Some insecticides interfere with the removal of acetylcholine from the synaptic cleft. what effect will this have on muscle cont
Natasha2012 [34]
<span>The effect of insecticides will result in prolonged muscle contraction.</span>   <span>Acetylcholinesterases are the enzymes that catalyze the breakdown of acetylcholine (Ach) in the synaptic cleft. This normally occurs, after the Ach achieves its effects on its receptors. On the other hand, acetylcholinesterase inhibitors inhibits the acetylcholinesterase enzyme thereby increasing the level and duration of action of the neurotransmitter ACh. Acetylcholinesterase inhibitors are used as insecticides.</span>
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3 years ago
True or False - Velcro was an invention that was originally used for space missions that is now used for things on Earth.
Elena L [17]

Answer:

True

Explanation:

Velcro was coined from the combination of the words “velvet” and “crochet.” It is made up of two strips of fabric in which one is covered in thousands of tiny hooks and the other with thousands of tiny loops. It was discovered by George de Mestral.

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Viruses mutate and can become more pathogenic to humans. Some viruses may originate in other animals, such as birds, bats or pig
Norma-Jean [14]

Answer:

Viruses may be defined as the organisms that shows the border line between the living and non living organisms. Viruses can only replicate when they enter in the body of a particular host.

Viruses are pathogenic for humans and can cause deadly diseases like AIDS. The pandemic condition of virus mainly depends on the the matter of time. The appearance of the disease condition before the occurrence of the another  disease.

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3 years ago
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
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