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2 years ago

What rule of magnetism is illustrated by the lines of the iron filings with unlike poles?

Biology

1 answer:

Debora [2.8K]2 years ago

6 0

Answer:

The rule of magnetism illustrated is the field lines are more concentrated at the poles and also about the direction of magnetic field.

Explanation:

Every magnet has two pole, north pole and south pole. The like poles repel each other and unlike poles attract each other.
The direction of magnetic field is from north to south that can be seen by the iron filling experiment.
When the iron fillings are kept near the bar magnet, we observe that most of the fillings are attached to either poles.
It is due to the fact that the concentration of magnetic field is highest at the poles.

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Which of the following is not a step in the process of natural selection

Paraphin [41]

Answer:

A step that is not part of natural selection is people select which individuals breed and which ones do not.

Explanation:

Natural selection is a process in which favorable or unfavorable environmental conditions determine the evolution of species, producing differences in their genotype over a long period of time.

As its name indicates, it is a natural selection, in which no intervention by people is contemplated, so that <u>people cannot determine which individuals breed</u>.

Natural selection implies that the characteristics on which the environment influences are inheritable, that there is genetic variability in the population and that the variability of these characteristics implies the ease of reproduction and survival capacity.

<em>The other options do form part of natural selection, since they are based on the three premises of this process: </em>

<em>Inheritable characteristics. </em>
<em>Genetic variability. </em>
<em>The variability of characteristics influences reproduction and survival.</em>

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3 years ago

Soil erosion is a process where the top soil layer is washed away because of the effects of water or wind. An agricultural area

abruzzese [7]

Answer:

add plants and trees

Explanation:

they help hold the soil in place because of their roots

8 0

3 years ago

The genes R, E and D are independently assorting and control production of red pigment as follows (recessive alleles are not fun

Alona [7]

Answer:

1/8

Explanation:

An individual must have all three dominant alleles to be red, in homozygosis or heterozygosis (R_E_D_).

<u>The parental cross was:</u>

RREEDD x rreedd

F1: RrEeDd

<u>The test cross</u> is between the RrEeDd indiviudals and homozygous recessive rreedd.

The genes assort independently, so we can use Mendel's law of segregation to predict separately for each gene the proportion of the offspring that will have the dominant alleles.

1/2 Rr

1/2 rr

1/2 Ee

1/2 ee

1/2 Dd

1/2 dd

Genes are independent, so the probability of having a R_E_D_ offpsring is calculated by multiplying the individual probabilities of having a dominant allele for each gene:

1/2 (Rr) × 1/2 (Ee) × 1/2 (Dd)= 1/8

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3 years ago

Two laws passed to prevent or decrease water pollution were the Clean Water Act and the _____. Safe Drinking Water Act Water Saf

12345 [234]

Clean air act is the answer to this question

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3 years ago

Read 2 more answers

Which of these is a reason that we should perhaps be using more nuclear energy?

Arisa [49]

Answer: