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anzhelika [568]
2 years ago
11

Without energy, molecules tend to want to move from

Biology
1 answer:
Amanda [17]2 years ago
4 0

Answer:

D

explain: The Move from high concentration to low competition. Until the concentration is equal . Diffusion expand needs no energy

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saveliy_v [14]

Answer:

When the insulation around a wire is worn or frayed.

Explanation:

Im on the quiz!

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What is the cancer causing sgent in tobacco?
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There are about 250 chemicals that are harmful including carbon monoxide and ammonia.
8 0
3 years ago
Can someone please help on these two question Please I don't get this at all I'm really confused
marissa [1.9K]
Alleles are letters that represent dominant and recessive traits.

A capital letter represents a dominant trait
A lowercase letter represents a recessive trait.

Dominant traits over shadow the recessive ones. This is known as complete dominance.

Referring to your questions let's us the alleles HH, Hh, and hh for the height of the pea plants.

But what do those letters mean?

HH = homozygous dominant (Tall)
Homo means same.

hh = homozygous recessive (Short)

Now this is different: here's Hh.
There's a capital AND lowercase letter.
This means that the plant carries the gene for tall and short plants, and can pass on either trait to the offspring.

BUT the dominant always over shadows the recessive. So Hh is a tall plant.

Hh = heterozygous (hybrid) (Tall)
You can interpret hetero meaning different.

Now I hope you're with me!

For question two it asks if a short plant can ever be a hybrid.
Referring to what I just said, that answer would be no.
Because there is no dominant trait to over shadow the recessive.

And short plants have the hh alleles, and they are homozygous NOT heterozygous (hybrid).

I hope this helps, and makes sense! If you have any questions please let me know. Genetics can be confusing.
8 0
3 years ago
Read 2 more answers
Which step occurs first in sexual reproduction
nikdorinn [45]

Answer:

In the first stage of sexual reproduction, "meiosis", the number of chromosomes is reduced from a diploid number (2n) to a haploid number (n). During "fertilisation", haploid gametes come together to form a diploid zygote, and the original number of chromosomes is rest

Explanation:

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3 years ago
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Answer:

The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water.

Explanation:

This is where I got the information:

sciencing.com/reactants-products-equation-photosynthesis-8460990.html

I hope this helps!

5 0
2 years ago
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