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Harman [31]
3 years ago
14

Which of the following is NOT true regarding sexual reproduction?

Chemistry
2 answers:
Leya [2.2K]3 years ago
7 0

Answer:

I believe it would need more then one parent so therefore the wrong answer would be It requires only one parent

Explanation:

mel-nik [20]3 years ago
4 0
Answer: I think it’s B

explanation
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Suppose new evidence is found about how Bernoulli's principle works. What is likely to happen?
balu736 [363]

Answer:

B. The theory might be modified if necessary.

B. nearly all scientists agree that it is correct

Explanation:

B. The theory might be modified if necessary.

The Bernoulli's principle relates the speed of fluid to their pressures. It simply states that when the speed of fluids increases there is a drop in pressure.

Supposing we find new evidence about how the principle works, the normal scientific thing to do is to modify the existing principle. New information and observations about a principle would only provide a modification to the existing one. An example is the Dalton's atomic theory, which was centered on the atom being the smallest indivisible particle: the theory was later modified when new ideas about the atom surface.

B. nearly all scientists agree that it is correct

Before a hypothesis is adopted to the context of scientific principle, the ideas behind it must have tested and must be repeatable. Different sources will verify the authenticity of such scientific claim to see if such can be adopted. Therefroe, nearly a large numbr of scientists must agree that it is correct.

8 0
3 years ago
Read 2 more answers
Which atomic model describes the atom as a nucleus surrounded by electrons that travel as waves in the electron cloud? (4 points
sveta [45]
The answer to this is The current atomic model.
6 0
3 years ago
A fossil you are radiometrically dating contains 4 micrograms of Uranium 235 and 4 micrograms of Lead 207. Uranium 235 decays to
Rzqust [24]

The rate at which radioactive substances disintegrate is a constant for a

given radioactive material.

  • <u>The fossil is 710 million years old</u>.

Reasons:

The half-life of a radioactive material is the time it takes half of the nucleus

of a radioactive material to disintegrate into other forms of materials

through the given off of energy and particles.

The half life of Uranium 235 = 710 million years

The product of the decay of Uranium 235 = Lead 207

The mass of Uranium 235 in the fossil = 4 micrograms

The mass of Lead 207 in the sample = 4 micrograms

Therefore, the mass of Lead 207 in the fossil is equal to the mass of

Uranium 235, therefore, a minimum of half of the Uranium 235 has

decomposed, which gives;

The time of decomposition of the Uranium 235 = 1 Half life = 710 million years

The age of the fossil = The time in which the Uranium has been

decomposing = The time of decomposition = 1 half life of Uranium 235 = 710

million years

  • <u>The age of the fossil = 710 million years</u>

Using the formula for half-life, we get;

\displaystyle N(t) = N_0 \left (\dfrac{1}{2} \right )^{\dfrac{t}{t_{1/2}}

The fossil contains initially only Uranium 235 with a minimum mass of 4 mg

+ 4 mg = 8 mg, which gives;

N₀ = 8 mg

N(t) = The current mass of Uranium 235 = 4 mg

\displaystyle t_{1/2} = 710 million years

\displaystyle 4 = 8 \cdot  \left (\dfrac{1}{2} \right )^{\dfrac{t}{710}

\displaystyle \frac{4}{8}  = \frac{1}{2} = \left (\dfrac{1}{2} \right )^{\dfrac{t}{710}

Therefore;

\displaystyle \left( \frac{1}{2}\right)^1 = \left (\dfrac{1}{2} \right )^{\dfrac{t}{710}

\displaystyle 1 = {\dfrac{t}{710}

t = 710

  • <u>The age of the fossil, </u><u><em>t</em></u><u> = 710 million years</u>

Learn more here:

brainly.com/question/20629992

3 0
2 years ago
Ice bomb
Ahat [919]

Answer:

Formation of Gas

Explanation:

The solid Carbon Dioxide warms it sublimates to gas. With limited room for the gas to expand, the pressure in the bottle increases.

5 0
3 years ago
Question 7
Aneli [31]
D =temperature of the water
4 0
3 years ago
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