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Nadusha1986 [10]
3 years ago
7

Help Asap plz Thx giving lots of points!!!

Chemistry
1 answer:
3241004551 [841]3 years ago
3 0

29. B) A population changes in response to a change in the environment.

<u>Evolution is the process by which new species of organisms develop from earlier forms. Most often, in response to a change in a species environment. It's the frequent change of the alleles in a population. </u>

30. A) Describes the relationship between an organism and its environment

<u>Darwin made this theory of evolution by natural selection as an explanation for adaptation. Darwin defined natural selection as the </u>

<u>"principle by which each slight variation, if useful, is preserved."</u>

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At the top of a hill, an athlete on a skateboard has X joules of mechanical energy. How much mechanical energy will she have at
ExtremeBDS [4]

If an athlete has X joules of mechanical energy at the top of the hill, he will have the same X amount of energy at the bottom of the hill.

<h3>What is mechanical energy?</h3>

Mechanical energy is the addition of kinetic and potential energy. It can be either kinetic or potential energy.

It is the energy possessed by the position or the motion of the body.

It is the energy present to perform any work.

So, the athlete will have X joule of energy at the top and bottom of the hill.

Thus, the correct option is a, X joules.

Learn more about mechanical energy

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List of 10 strong bases and acids?
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<span><span>KaAcid</span><span><span>1.0 * 109</span>Hydrobromic acidHBr</span><span><span>1.3 * 106</span>Hydrochloric acidHCl</span><span><span>1.0 * 103</span>Sulfuric acid<span>H2SO4</span></span><span><span>2.4 * 101</span>Nitric acid<span>HNO<span>3</span></span></span></span>
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A puddle of water on the sidewalk evaporates and becomes water vapor. the water vapor travels through the air and comes into con
Shtirlitz [24]
2. it becomes a liquid
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Acetaldehyde decomposes at 750 K: CH3CHO → CO + CH4. The reaction is first order in acetaldehyde and the half-life of the reacti
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Answer:

k = 1.3 x 10⁻³ s⁻¹

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Ln [A]t/[A]₀ = Ln 1/2[A]₀/[A]₀= Ln 1/2 = - kt

- 0.693 = - k(530s) ⇒ k = 1.3 x 10⁻³ s⁻¹

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Which part of the cell does this illustration represent?
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Answer: Mitochondria. The mitochondria contains cristae.
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