Which statement correctly describes diffrences between meiosis I and meiosis II?

Biology

1 answer:

Aleks [24]3 years ago

3 0

I guess the answer its option B
.

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Paraphrase four safety practices you should always use when you begin scientific inquiry

Mrrafil [7]

<span>1. Pose significant questions that can be investigated empirically. 2. Link research to relevant theory. 3. Use methods that permit direct investigation of the question. 4. The methods used to obtain data and test hypotheses should be benevolent and not malevolent.</span>

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4 years ago

How far away can a proton and an electron be from each other, such that they still exert an electric force on each other of magn

pogonyaev

Answer:

$\sqrt{ \frac{2.3 *10^{-28} }{F} }$

Explanation:

Total force = Force due to gravity + Force due to charges

Total force = $\frac{GMm}{r^{2} } + \frac{kQq}{r^{2} }$

r is the separation between particles.

Charge of a proton(Q) = - (charge of an electron(q) ) = 1.6 * 10^-19 coulombs

Mass of a proton (M)= 1.67×10^-27 kilograms

Mass of an electron (m) =9.11 × 10^-31 kilograms

G=6.67 ×10^−11 N⋅m^2/kg^2

k=8.99 * 10 ^9 N.m^2 / C^2

Plugging in values:

Force due to gravity= (6.67 *10^−11)(1.67 * 10^-27)*(9.11 * 10^-31) /r^2 =1.01 * 10^-67 / r^2

Force due to charges : (8.99 * 10 ^9)*(1.6 * 10^-19)*(1.6 * 10^-19) / r^2 = 2.3 *10^-28 / r^2

We can observe that force due to charges is too large as compared with force due to charge. The ratio of Fc to Fm is 2.3* 10^39. It means that we can ignore force due to gravity.

Total force = Force due to charges.

F = 2.3 *10^-28 / r^2

r = $\sqrt{ \frac{2.3 *10^{-28} }{F} }$

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4 years ago

Which cycle describes the movement of water above, on, and below the surface of the earth?

irga5000 [103]

I think it's D, Phosphorus Cycle

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3 years ago

The process of synthesizing simple sugars using sunlight as an energy source is referred to as

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