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postnew [5]
2 years ago
9

Who discovered penicillin from plant​

Biology
1 answer:
sergejj [24]2 years ago
8 0

Answer:

Alexander Fleming discovered penicillin from plant.

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One cycle in a polymerase chain reaction (PCR) involves incubating the sample at three successive temperatures: 94° C., 50° C.,
miss Akunina [59]

Answer:

 Initial extension ( elongation)

Explanation:

in PCR cycle  , there is a third step called as extension (also called as elongation step) which is performed at 72  ° C. In this step taq polymerase will add nucleotides to the primers attached for the extension of template Strand.

8 0
3 years ago
Although not completely proven, some researchers suggest that consumption of large amounts of caffeine can result in cancers of
blsea [12.9K]

Although not completely proven, it's true some researchers suggest that consumption of large amounts of caffeine can result in cancers of the bladder, ovaries, colon, and kidneys.

<h3>How caffeine effect body ?</h3>

The body readily absorbs caffeine, and the short-term effects often manifest between five and thirty minutes after consumption. Increased breathing, heart rate, mental and physical vigor, as well as increased heart rate, are examples of these impacts. The duration of these effects varies from person to person and can reach 12 hours.

As little as 300 milligrams of caffeine, or about four cups of coffee, can raise your risk of experiencing adverse effects like nausea, anxiety, restlessness, and insomnia in adults. Caffeine misuse or excessive use in some individuals can also result in: Headaches. Irritability.

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brainly.com/question/8590464

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4 0
1 year ago
What Structure formed by the crossing over of the optic nerves
Elanso [62]

The optic chiasm is an X-shaped structure formed by the crossing of the optic nerves in the brain. The optic nerve connects the brain to the eye.

4 0
3 years ago
Describe the characteristics of protists.
vovikov84 [41]

Answer:

I dont know this so I looked this up, here is the results.

They are eukaryotic, which means they have a nucleus. Most have mitochondria. They can be parasites. They all prefer aquatic or moist environments.

Explanation:

5 0
3 years ago
The question is down below.
Talja [164]

Answer:

(c)there is no heat flow between the metal and the oil

Explanation:

oil is not a good conductor of heat

4 0
3 years ago
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