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Natalka [10]
3 years ago
7

A student created the data table below using a computer simulation of coal

Biology
2 answers:
Darya [45]3 years ago
6 0

Answer:

the answer is A. Don't expect a explanation because this question is too easy for me to explain . Have a nice day!

yawa3891 [41]3 years ago
5 0

Answer: the correct answer is Conservation can make coal resources last longer for growing populations.

Explanation:

Apex Told me :)

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What must happen before a cell can begin mitosis??
ss7ja [257]
Answer - The chromosomes has to be crucially duplicated and it happens actively during the resting phase or interphase.

Reasoning - During the resting phase or interphase you call it, Is important to have the same exact DNA or Chromosomes to be duplicated. If the chromosomes did not duplicate during the interphase then the split of the cell would be unbalance and uneven and likely to cause defects.

7 0
3 years ago
Which increase the rate of soil formation? Check all that apply. A. mixed layers B. large grain sizes C. more precipitation D. w
Feliz [49]

The answers are

B. large grain sizes C. more precipitation D. warmer temperatures

4 0
3 years ago
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Which methods reduce friction? O increasing speed O lubricating surfaces O using sticky materials O increasing surface roughness
Afina-wow [57]

Answer:b)lubricating surfaces

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6 0
3 years ago
Una mujer lleva en uno de sus cromosomas X un gen letal recesivo (l), y en el otro alelo dominante normal (L). ¿Cuál es la propo
nlexa [21]

Question in English:

A female carries a recessive lethal gene (l) on one of her X chromosomes, and a normal dominant allele (L) on the other. What is the sex ratio to be expected in this woman's dependency if she marries a normal man?

Answer:

2/3 females

1/3 males

Explanation:

Females have two X chromosomes (XX) and males have an X and a Y chromosome (XY).

The genotype of the female is XLXl. The genotype of the male is XLY, since he is normal.

The possible genotypes are:

<u>                            XL                  Xl</u>

<u>XL</u>                     <em>XLXL             XLXl</em>

<u>Y</u>                       <em>XLY               </em><em>XlY</em>

<em />

All female offspring will be normal as they will always have one normal copy of the X chromosome from their father.

50% of the male offspring will be normal, but 50% will inherit the lethal gene from their mother.

Because the allele is lethal, that means XlY males will not be born.

That means 2/3 of the children will be females, and 1/3 will be males.

8 0
3 years ago
How are energy inputs and outputs related to chemical reactions
GREYUIT [131]

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The chemical energy provided by a reaction reflects the energy balance associated with the electronic modifications suffered by the species involved.

From an energy point of view, a chemical reaction between molecules can be schematized in two stages. The first requires a supply of energy and corresponds to the rupture of the bonds of the reactant molecules with release of the atoms which constitute them.

The second releases energy and concerns the creation, by recombination of these atoms, of new bonds entering the structure of the reaction molecules.

As a general rule, the energy released in the second stage is greater than the first. We are talking about exothermic reaction. The difference between these two energies (reaction enthalpy) measures the amount of chemical energy transferred to the external environment.

It is conceivable that this quantity translates, not only the number, but also the strength of the connections involved.

6 0
3 years ago
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