Answer:
A compass needle is affected by Earth's magnetic field.
A magnetic field is strongest at the poles.
Explanation:
Axon: the messenger cell that carries the command to contract muscles.
i think it is 3a because when they are all together they are in like a clump so
By using a genetic diagram or a punnett square, we can show the the result of a cross between RR and rr.
The result of the genotypes should all be Rr.
This means all their offsprings should have the dominant trait being expressed.
Therefore, the percentage to this should be 100%.
The picture above is an example of using a punnett square finding the possible genotypes of the offsprings.