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zavuch27 [327]
3 years ago
13

A species of fish is unintentionally introduced into a marine ecosystem. The species has a similar diet to an existing fish spec

ies creating competition on for food. According to Darwin's theory of evolution by natural selection, which of the following must occur for the existing species to evolve?
how do I explain the answer: natural variations in phenotype must be present in the existing species population.
Advanced Placement (AP)
1 answer:
mr Goodwill [35]3 years ago
5 0
A speices usaully can only breed with the same species unless it is done in a lab with their DNA and sometimes that doesnt work
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Answer:

The proton number is found in the periodic table of elements.

Explanation:

<em>The atomic number </em>is the number that defines each element in the periodic table. It accounts on the number of protons in a nucleus of an element, as well as the number of electrons. It is marked by the letter Z.

It should be distinguished from the mass number which is the total number of protons <em>and </em>neutrons inside a nucleus.

7 0
3 years ago
What are two reasons Benin’s history of slavery was misrepresented in the past?
Iteru [2.4K]

Answer:

<u>Benin-</u> A history of region which hold great information about the rich culture of an ancient cultures, as it was made target by the unfortunate act of slave trade. But, in the past the Benin's history of slavery is misrepresented by various historians.

<u>Due, two main reasons;</u>

  • The west was all involved in the slave trade which occurred in the region, they did not wanted to highlight them just for the sake not to make them look bad.
  • Along with that the analyst were facing difficulties in representing the history with a more clear words due to the forces present inside in Benin outside the region.

Explanation:

In the past an empire in Africa existed, it was rich and considered the most powerful in the region. As its ruler had the man power, along with the riches to defend there country. But, in the time when there came crises and people were made slaves as foreigner were there to purchase slaves from the leaders who are willing to let there people in exchange of gold and other favors from the Portuguese, Brits, and the french.

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3 years ago
Particle x moves along the positive x-axis so that its position at time t ~ 0 is given by x(t) = 5t 3 - 9t 2 + 7. at what time t
Arada [10]

Answer: 1.2 seconds

Explanation:

$$At the farthest point the velocity of particle will be zero. \ Differentiating the given equation of position and equating it with zero:$$\begin{aligned}x(t) &=5 t^{3}-9 t^{2}+7 \\x^{\prime}(t) &=15 t^{2}-18 t \\0 &=15 t^{2}-18 t \\t(15 t-18) &=0 \\t &=0 \\t &=\frac{18}{15}=1.2 \mathrm{~s}\end{aligned}$$

$$Thus, at $t=1.2 \mathrm{~s}$ particle will be at the farthest point. \\\\\underline{Justification:}\\The particle moves towards the left from $t \in[0,1.2)$. After that particle keeps moving in  the positive x-direction.

5 0
2 years ago
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An introvert is likely to stay inside and read all day. Compared to extroverts*, introverts are people who are less outgoing and sometimes prefer solitude than engaging with others.
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2 years ago
If you wreck your car on purpose is it still a car accident
34kurt
No it isn't an accident because u did it on purpose the it means u mean it
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