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svet-max [94.6K]
3 years ago
15

In the darkness, a pinpoint of light becomes visible. Someone has turned on a flashlight. The pin­point grows to the size of the

bulb. Because this is slow motion, only the bulb is bright. Nothing else lights up—yet.
Now the light begins to spread outward from the bulb. It fills a bigger and bigger space. As the light moves forward, it strikes little fog droplets, the ground, a sneaker, a tree, a cat. After each collision, some light bounces off. It is redirected. Some of it reaches a person's eyes. Only then can the light trigger the person's eyes and brain. In slow, stretched-out speech, the person says, "L000000-000000k! Aaaaaaaaaaaa caaaaaa-aaat!"
—A Black Hole Is NOT a Hole,
Carolyn Cinami DeCristofano
Why did the author include this description?
0 to explain how a star produces light
0 to explain how light travels
0 to explain how cats see in the dark
0 to explain how fog forms
Biology
1 answer:
Firlakuza [10]3 years ago
8 0

Answer:

to explain how light travels

Explanation:

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During a cell's development, it differentiates. How does differentiation occur?
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D. Certain genes are turned on and others are turned off; this action produces adult cells that are specialized
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3 years ago
What determines an organism's phenotype?<br> A.age<br> B.genotype<br> C.random mutations
Bingel [31]

Answer:

B. genotype

Explanation:

Genotype determines an organism's phenotype.

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Why gene therapy would be considered a cure vs. a treatment.
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Gene therapy replaces a faulty gene or adds a new gene in an attempt to cure disease or improve your body's ability to fight disease. Gene therapy holds promise for treating a wide range of diseases, such as cancer, cystic fibrosis, heart disease, diabetes, hemophilia and AIDS.

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3 0
3 years ago
Part 1- Explain which traits would need to combine in order for a yellow cucumber and a green to make a green cucumber.
adelina 88 [10]
<h2>Part 1.</h2><h2>Answer:</h2>

Only the traits or allele for the green trait will be needed to make a green cucumber.

<h3>Explanation:</h3>

Here in the given example there are two allele responsible for the color of cucumber. One is Y which is dominant allele and codes for the yellow color.

While y is recessive allele and it will be code for the green color.

In case of heterozygous in which the genotype will be Yy but the phenotype will be always yellow because Y is dominant.

In case of genotype yy the phenotype will be green.

So for green cucumber there will be two y in the genotype.

<h2>Part 2.</h2><h2>Answer:</h2>

For yellow cucumber, there is need of only one dominant allele which codes for yellow.

<h3>Explanation:</h3>

According to the given punnet squre, There will be 4 genotypes from the breeding of a yellow cucumber and green cucumber.

The yellow cucumber is heterozygous or homozygous and its genotypes can be Yy and YY relatively.

But for green cucumber the genotype can only be homozygous which is yy.

In the punnet squre the 2 phenotype are yellow and green.

Hence for the yellow cucumber there is only need of one Y allele in genotype.

5 0
3 years ago
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The important thing to identify the degrees of lightness to darkness in each level.
Hope this helps you.
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