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kirill [66]
3 years ago
12

Which of these minerals and mineral resources is composed of the remains of plants that lived and died millions of years ago? A.

Coal B. Aluminum C. Salt D. Petroleum
Biology
2 answers:
galben [10]3 years ago
7 0

Answer:coal

Explanation:apex said so

agasfer [191]3 years ago
3 0
The dead and decayed plants turn to coal after a million years under high pressure and heat of the earth.
And the petroleum is formed the same but with the dead animals in ocean bed to form petroleum
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why is it important that our sex cells only contain one set of chromosomes instead of two sets of chromosomes
Nesterboy [21]

It  is important that a gamete or sex cells have exactly only one set of chromosome because during sexual reproduction two sex cells of the parents will form the zygote and it will have 2n or diploid number of chromosomes. It is from this zygote somatic cells are formed.

4 0
3 years ago
Soil reaction is _______.
jasenka [17]
<span>A. the measure of the acidity or alkalinity of soil Alkalinity is the name given to the quantitative capacity of an aqueous solution to neutralize an acid.</span>
4 0
3 years ago
Read 2 more answers
There are only about 40 different tRNAs in a cell even though 61 codons code for amino acids. This discrepancy can be attributed
bogdanovich [222]

Answer:

The correct answer is - wobble; the curvature of the anticodon loop; inosine.

Explanation:

The wobble phenomenon or hypothesis tells that why there are multiple codons are present for a single amino acid. 20  amino acids are coded by 61 codons. It states that tRNA can identify and attach to more than one amino acid due to the curvature of the anticodon loop.

The curvature of the anticodon loop is that the base at the 1st position on the anticodon to binding but the less-precise base pairs that can arise between the 3rd base of the codon. The inosine is the nucleoside that presents in a position in the curvature of the anticodon loop and its position responsible for wobble as well.

3 0
2 years ago
The digestive system is an example of what level of organization
Tom [10]
The answer you are looking for is “organ system”
8 0
3 years ago
Find the slope between (0,-7) and (7,0). Reduce it.<br> show work
lana66690 [7]

Answer:

\displaystyle m=1

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Coordinates (x, y)
  • Slope Formula: \displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Explanation:

<u>Step 1: Define</u>

Point (0, -7)

Point (7, 0)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute in points [Slope Formula]:                                                             \displaystyle m=\frac{0+7}{7-0}
  2. [Fraction] Add/Subtract:                                                                                 \displaystyle m=\frac{7}{7}
  3. [Fraction] Divide:                                                                                                \displaystyle m=1
5 0
3 years ago
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