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kenny6666 [7]
3 years ago
8

Which class of molecules contains the amino group, NH2

Biology
2 answers:
Rufina [12.5K]3 years ago
8 0

Answer:

Proteins

Explanation:

Proteins are one of the biomacromolecules. Proteins are polymers of amino acids. Each amino acid has a central carbon atom to which an amino group, a carboxyl group, a hydrogen atom, and one side chain are bonded. Many amino acids are joined together by peptide bonds to make long chains of proteins.

Rudiy273 years ago
5 0
Proteins

Hope that helped
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A scientist is studying the effect of glaciers on climate and feels that the melting of ice caps has produced global climate cha
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Answer:

b

Explanation:

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3 years ago
The first step of the scientific process is
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Answer:

A. Making an observation

Explanation:

Before you can communicate findings, you first need to have findings. And before you can test a hypothesis, you first need to come up with a hypothesis, which can be done by first making an observation.

8 0
3 years ago
Which will have the greatest impact on the effects of disease in a population?
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nutrition is the answer bcz without nutrition the diseases will effect more in a population

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A snapping turtle has 52 chromosomes which statement correctly compares the number of chromosomes in a body so with that in a se
dalvyx [7]

Answer:

The question lacks options, the options are:

A). the body cell has 2n; the sex cell has 1n.

B). the body cell has 26; the sex cell has two.

C). the body cell has 1n; the sex cell has 2n.

D). the body cell has 24; the sex cell has 26

The answer is A

Explanation:

According to the question, the snapping turtle possesses 52 chromosomes in its cell. This means that the chromosomal number of its body cell is 52. However, the turtle, which reproduces sexually will produce gametes or sex cells via meiosis. Meiosis is the kind of cell division that results in daughter cells (gametes) that have a reduced number of chromosomes (by half).

Based on this, the diploid cells (2n) of the turtle with chromosome number 52 will undergo meiotic division to produce haploid gametes or sex cells (n) with chromosome number 26.

N.B: Diploid (2n) means two complete sets of chromosomes while haploid (1n) means one complete set of chromosome.

The body cell of the turtle contains two set of chromosomes received from each parent, hence, making it Diploid (2n). However, meiosis will reduce the chromosome number to one set in each gamete i.e. haploid (n).

3 0
3 years ago
Read 2 more answers
Triangle ABC is an equilateral triangle with side lengths labeled a, b, and c. Triangle A B C is an equilateral triangle. The le
kirill115 [55]

Answer:

One-half b c sine (60 degrees)

One-half a squared sine (60 degrees)

StartFraction a b sine (60 degrees) Over 2 EndFraction

Explanation:

The area rule states that the area of any triangle is equal to half the product of the lengths of the two sides of the triangle multiplied by the sine of the angle included by the two sides.

From the question, Equilateral triangle refer to a triangle with equal angle and equal sides. The sum of an angle in a triangle = 180°; this implies that each angles have 60°.

∴ the three options that defines the expressions that represent the are of triangle ABC are:

One-half b c sine (60 degrees)  

i.e \frac{1}{2}bcsin60^{0}

One-half a squared sine (60 degrees) ; if the two opposite sides posses the same parameters.

i.e \frac{1}{2}a^{2}sin60^{0}

StartFraction a b sine (60 degrees) Over 2 EndFraction

i.e \frac{absin60^{0}}{2}

8 0
3 years ago
Read 2 more answers
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