For a molecule to be considered organic, what elements must be present

2 answers:

5 0

Carbon and hydrogen.

The simplest group of organic molecules are the alkanes which have only these 2 elements. Eg methane, CH4.

Doss [256]2 years ago

3 0

Oxygen, nitrogen, carbon, phosphorus, hydrogen atoms ...

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Prokaryotic and eukaryotic cells have many differences, but they also share some common features. Which of the following may be

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Prokaryotic and eukaryotic have structures in common such as plasma membrane, ribosomes, DNA, cytoplasm.

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3 years ago

In the Kirby-Bauer disk diffusion test, the _______ of the zone of inhibition is measured and used for interpretation.

snow_tiger [21]

Answer:

The correct option is : a. diameter

Explanation:

The Kirby–Bauer test or the disk diffusion test, is a method to determine the antibiotic sensitivity of the given bacteria. This test involves the use of antibiotic discs to determine the effect of antibiotics on the bacteria.

In this test, the wafers having antibiotics and the bacteria are placed on the agar plate and incubated. If the antibiotics present stops the growth of the bacteria, there will be an area around wafer with no bacterial growth, such an area is known as the zone of inhibition.

The diameter of this zone of inhibition is measured to determine the antibiotic sensitivity of the given bacteria.

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2 years ago

Our eyes are always the same size from birth

vfiekz [6]

<h3>Answer:</h3>

It's FALSE. Baby eyes are propotionallity larger than adult eyes.

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2 years ago

How does a barn owl maintain homeostasis?

Lelu [443]

It's all about balance

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3 years ago

How are convex and concave lenses used?

Tcecarenko [31]

Answer:

Telephoto Lenses Are Combinations of Convex and Concave Lenses. Most optical devices make use of not just one lens, but of a combination of convex and concave lenses. For example, combining a single convex lens with a single concave lens enables distant objects to be seen in more deta

Explanation:

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2 years ago

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