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Tanzania [10]
3 years ago
6

Human skin color varies widely around the world, and children do not always exhibit the exact same coloring as their parents. Ba

sed on this information, what is true about human skin color?
Skin color is not a genetic trait.

A single pair of alleles controls this trait.

It’s an example of incomplete dominance.

It’s an example of polygenic inheritance.
Physics
2 answers:
QveST [7]3 years ago
5 0

Answer:

I think It is D

Explanation:

hope this helps

Ostrovityanka [42]3 years ago
3 0
I would say Its an example of polygenic inheritance because The determination of a particular characteristic, e.g. height or skin colour, by many genes (polygenes), each having a small effect individually. Characteristics controlled in this way show continuous variation.
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Two identical conducting small spheres are placed with their centers 0.290 m apart. One is given a charge of 12.0 nC and the oth
Solnce55 [7]

Answer:

Force between two identical conducting ball will be 2.65\times 10^{-5}N                        

Explanation:

We have given there is two identical conducting small spheres having charge q_1=12nC=12\times 10^{-9}C and q_2=-21nC=-21\times 10^{-9}C

Distance between centers of the ball is 0.290 m

So r = 0.290 m

We have to fond the electric force between the balls

According to Coulomb's law force between two charges is given by

F=\frac{1}{4\pi \epsilon _0}\frac{q_1_2}{r^2}=\frac{Kq_1q_2}{r^2}

So force F=\frac{9\times 10^{9}\times 12\times 10^{-9}\times 21\times 10^{-9}}{0.293^2}=2.65\times 10^{-5}N

So force between two identical conducting ball will be 2.65\times 10^{-5}N

4 0
3 years ago
An ecosystem with one dominant type of plant growing in it is a healthy, stable ecosystem. True or false?
Sloan [31]
This stamens is false
8 0
2 years ago
In a chemical equation, numbers often appear in front of a chemical formula. What do these numbers indicate?
solong [7]
The number of molecules in each atom in the reaction.
5 0
3 years ago
What is the minimum work needed to push a 920-kg car 310 m up along a 6.5 ∘incline? Ignore friction.Express your answer using tw
AVprozaik [17]

Answer:

2800000J

Explanation:

Parameters given:

Mass = 920kg, weight = 920 * 9.8 = 9016N

Distance = 310m

Angle of inclination = 6.5°

Work done is given as :

W = F*d*cosA

Where A = angle of inclination

W = (9016 * 310 * cos6.5)

W = 2776993.59J

In 2 significant figures, W = 2800000J

7 0
3 years ago
How does the amount of energy coming from the energy source (low vs. high) affect the amount of electrical energy created?
Ugo [173]

Answer:

The environmental problems directly related to energy production and   Electricity is a secondary energy source that is generated  producedfrom primary energy sources:

hope that helps im new so have a good day (:

3 0
2 years ago
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