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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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In which isotope is the strong nuclear force not strong enough to balance electrostatic forces between protons? Carbon-13 hydrog
jolli1 [7]

Answer:

The correct answer is "uranium-238".

Explanation:

Uranium-238, is the most abundant isotope of the element uranium. Uranium-238 has not enough nuclear force to balance electrostatic forces between protons, and as a result, it is a radioactive isotope and its losing energy because of the spontaneous breakdown of its atomic nucleus. Uranium-238 has a half-life of 4.5 billion years and is used as fuel in nuclear reactors as well as for dating purposes.

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The primary role of the carbonic acid−bicarbonate buffer system is to __________.
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Preventing ph changes caused by the rising and falling pco2 of the plasma
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3 years ago
Which statements describe sedimentary rock? Check all that apply
love history [14]

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all of them

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i got u bro this corona stuff sucks

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What holds the DNA, and controls the functions of eukaryotic cells?
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The nucleus

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2 years ago
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You are sorting cards with pictures of organisms and their descriptions into groups. You would place the card with an osprey and
NikAS [45]

Answer:

The osprey card and its description should be placed in the heterotrophs group.

Explanation:

Organisms that can synthesize inorganic substances, such as light, and turn it into food according to their own needs are <u>producers</u>, and they are called a<u>utotrophic organisms</u>. These organisms are by excellence all <u>plants</u>, that <u>photosynthesize</u>.  Organisms that are incapable of producing their food are called <u>heterotrophic organisms</u>. They <em>depend on other organisms</em> from the trophic chain such as plants or other animals to feed on, so they can get proteins and energy.

In the trophic chain, heterotrophic organisms occupy the <u>first, second or third consumer level</u>, after producers.

There are different types of heterotrophic animals: carnivorous, herbivorous, omnivorous, hematophagous, ichthyophagous, and etcetera. All of them depend on autotrophic organisms.

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2 years ago
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