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2 years ago

Which part of the eye focuses light to the back of the eye?.

Biology

2 answers:

irina1246 [14]2 years ago

3 0

Answer:

I think it is retina. Sorry if I'm incorrect

ki77a [65]2 years ago

3 0

Answer: The answer is retina

Explanation: because for the eye, the light from distant objects is focused onto the retina at the back of the eye.

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Can someone write a paragraph explaining Etiolation. PLEASEEEE

Anit [1.1K]

Etioliation means that you water plants that are planted in an area with little to no sunlight. This results in weak stems, smaller leaves, yellow color, etc. The seedlings that are grown in the dark are known as "skotomorphogenesis." Etiolation comes from something called "Auxin's" and Auxin's are moved from the top of the plant to the bottom which creates lateral buds. Typically, etiliation results in the chances being raised for the plant to receive sunlight but causes underiable symptoms.

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3 years ago

Pottery must be ____________ in order to contain things—food or liquid—and so that it does not explode in the kiln.

juin [17]

"glazed"
Glazing is the process of covering a ceramic piece with glass allowing it to hold liquid (and food) without leaking. when left a small part of the ceramic not glazed allows the pottery piece to be fired in a kiln without exploding.

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3 years ago

How did scientists change societies view of smoking after 1960?<br>

krok68 [10]

Answer:

Obviously they showed that smoking can cause cancer

Explanation:

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2 years ago

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A factory is emitting large amounts of CFCs into the atmosphere. How might this affect people? increase in the rate of malaria b

Brut [27]

When a factory is emitting large amounts of CFCs into the atmosphere, it affects the people in that area by the increase in the level of ocean water. CFCs dissolve in seawater and because they are not reactive, they just circulate until it becomes saturated.

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3 years ago

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The dominant allele H reduces the number of body bristles in fruit flies, giving rise to a hairless phenotype. In the homozygous

DerKrebs [107]

Answer:

a. 3:1 (normal bristles to hairless)

b. 2:1 (normal bristles to hairless)

Explanation:

a. If H allele is present, the fly will be hairless. But H allele is lethal at homozygous condition, so all hairless flies will be heterozygous for H locus (Hh). S allele has no effect on bristle number, but in presence of H allele, S produces a "normal" phenotype and is also lethal at the homozygous condition. So genotypes and phenotypes will be like this:

- SSHH: No viable- Lethal

- SSHh: No viable-Lethal

- SShh: No viable-Lehtal

- SsHH: No viable-Lethal

- SsHh: Normal

- Sshh: Hairless

- ssHH: Normal

- ssHh: Normal

- sshh: Normal

A cross between two normal flies carrying the two alleles (SsHh) will produce (according to the attached Punnett Square):

6 Normal (SsHh, ssHh, and sshh)

2 Hairless (Sshh)

Therefore, the ratio of flies with normal bristles to hairless individuals will be 3:1.

b. When the hairless progeny of the previous cross (Sshh) are crossed with one of the parental normal flies from part a (SsHh), it will be produced (according to the second Punnett Square):

8 Normal (SsHh, ssHh, and sshh)

4 Hairless (Sshh)

So, the ratio of flies with normal bristles to hairless individuals will be 2:1.

7 0

3 years ago