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3 years ago

CAN SOMEONE HELP MENI WILL MARK YOU BRAINLIST

Biology

1 answer:

olga55 [171]3 years ago

4 0

Answer:

because magnets have a magnetic field, which creates a force, that pulls on other ferromagnetic materials. A paper clip is usually made of steel wire. ... Iron is a ferromagnetic material that is attracted by magnets.which makes it d made out of iron or contain out of iron

Explanation:

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In your own words, explain the difference between the pitch and intensity of sound.

lutik1710 [3]

Answer:

The pitch of a sound is how high or low a sound is when we hear it, whereas the intensity of a sound is the energy/vibrancy of the sound over an area and depends on the frequency of the sound as well.

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2 years ago

The difference in heat distribution between the poles and the equator is due to Earth’s

kkurt [141]

The axis of the earth is tilted (ANSWER IS C). The equator is heated more than other areas because the sun's rays hit it directly.
As you move north or south of the equator, they fall slantingly or obliquely.
When summer is in the south and vice versa, the heat also changes with the earth's rotation.
The tropic of Capricorn and the tropic of Cancer alternately get direct sunlight.
Due to the uneven heating of the earth, wind and ocean currents are created, supporting life.

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2 years ago

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Columbus, Ohio is one of the fastest growing cities in the United States. As of 2018, the city had a population ~900,000 people

Masteriza [31]

The time taken to double the population is 58 years.

<h3>What is exponential growth?</h3>

An exponential growth problem is one for which we define the model; P= Poe^rt

Where;

P = population at time t

Po = initial population

r = population growth rate

t = time taken

1800000 = 900,000e^(0.012 × t)

1800000/900,000 = e^(0.012 × t)

2 = e^(0.012 × t)

ln2 = 0.012 × t

t = ln2/0.012

t = 58 years

Learn more about population growth: brainly.com/question/12228859

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2 years ago

narvez 5. Everyone in Dobby's family has a long nose and they brag that they are from a purebred line. Viola has a stubby nose.

mote1985 [20]

Assuming a single diallelic gene coding for the trait and expressing complete dominance, the phenotypes, genotypes, and probabilities of getting each of them vary according to the parentals' genotypes. See the options below.

---------------------------------

Since I do not have the genotypes from #2, I will provide <em>different potential scenarios </em>for this question.

I advise you to <em>check on them</em> and see <em>which one matches the genotype from #2.</em>

Let us assume a single diallelic gene is coding for the trait and expresses complete dominance.

<h3 /><h3><u>SCENARIO 1</u> ⇒ long nose is the dominant trait</h3>

Let us say that

L is the dominant allele and codes for long nose

l is the recessive allele and codes for stubby nose

Since long nose is dominant over stubby nose

LL and Ll ⇒ long nose

ll ⇒ stubby nose

If Dobby comes from a purebred family and has long nose, his genotype must be LL.

And if Viola has stubbi nose, her genotype must be ll.

<u>Cross 1</u>

Parentals) LL x ll

Gametes) L L l l

Punnett square) L L

l Ll Ll

F1) Genotype ⇒ 100% heter0zyg0us Ll

Phenotype ⇒ 100% long-nosed

<em>There is 100% chances for a child to have a long nose</em>

<em>There is 0% chances for a child to have a stubby nose</em>

<em>These children are not purebred</em>

**********

<h3><u>SCENARIO 2</u> ⇒ Stubby nose is the dominant trait</h3>

Let us say that

S is the dominant allele and codes for stubby nose

s is the recessive allele and codes for long nose

Since stubby nose is dominant over long nose

SS and Ss ⇒ stubby nose

ss ⇒ long nose

If Dobby comes from a purebred family and has long nose, his genotype must be ss.

And if Viola has stubbi nose, her genotype must be either SS or Ss.

There are two possible crosses.

<u>Cross 1</u> : Violet is h0m0zyg0us dominant SS

Parentals) SS x ss

Gametes) S S s s

Punnett square) S S

s Ss Ss

F1) Genotype ⇒ 100% heter0zyg0us Ss

Phenotype ⇒ 100% stubby-nosed

<em>There is 100% chances for a child to have a stubby nose</em>

<em>There is 0% chances for a child to have a long nose</em>

<em>These children are not purebred</em>

<u>Cross 2</u>: Violet is heter0zyg0us, Ss

Parentals) Ss x ss

Gametes) S s s s

Punnett square) S s

s Ss ss

F1) Genotype ⇒ 50% heter0zyg0us Ss and 50% h0m0zyg0us recessive ss

Phenotype ⇒ 50% stubby-nosed and 50% long-nosed

<em>There is 50% chances for a child to have a stubby nose</em>

<em>There is 50% chances for a child to have a long nose</em>

<em>These children are not purebred</em>

----------------------------

You can learn more about single gene crosses at

brainly.com/question/12653314?referrer=searchResults

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2 years ago

What is the type of agriculture most likely to be found in developed countries?

Alla [95]

Answer:

commercial agriculture

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3 years ago

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