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fgiga [73]
3 years ago
9

The spark of life where did organic molecules come from case study answers

Biology
1 answer:
Veronika [31]3 years ago
7 0
<span>The spark of life is heavily debated but many scientists believe that lightning in the Earth's atmosphere created the atmospheric conditions necessary for the molecular process. Certain elements such as water vapor and hydrogen sulfide were part of a bonding process that began the first spark of life.</span>
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Reproduction critically contributes to the variation within a<br> species.
kompoz [17]

Answer:

Yes

Explanation:

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4 years ago
Which statement is true?
Ilya [14]
I believe the correct one is the 2nd option .
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3 years ago
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What is green building?
Tatiana [17]

Answer:

Green building refers to the application of processes that take place throughout a building's life-cycle including planning, designing, construction, maintenance, renovation.

Explanation:

Green building is also known as green construction or sustainable building. It refers to the application of processes that take place throughout a building's life-cycle including planning, designing, construction, maintenance, renovation. All of these processes are environmentally responsible and resource-efficient. Green building ensures efficient use of land, energy, water, and materials.

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3 years ago
Drag the terms on the left to the appropriate blanks on the right to complete the sentence. Terms may be used more than once.
Dima020 [189]

Hello. This question is incomplete. The full question is:

"Drag the terms on the left to the appropriate blanks on the right to complete the sentence. Terms may be used more than once.

1- free water

2- Solute

During osmosis, water diffuses across a selectively permeable membrane from the region of higher _______ concentration and lower _____ concentration to the side with lower _______ concentration and higher _______ concentration .

Answer:

During osmosis, water diffuses across a selectively permeable membrane from the region of higher free water concentration and lower solute concentration to the side with lower free water concentration and higher solute concentration

Explanation:

Osmosis is a biological process that takes place in cells and allows a substance to pass through the plasma membrane. Through osmosis, the plasma membrane, water can pass into and out of the cell through a gradient of solute concentration, that is, water passes from the place with the lowest concentration of solute to the place with the highest concentration, allowing thus the balance between the inter and extra cellular medium.

3 0
4 years ago
A man who is a dwarf with achondroplasia and normal vision marries a color-blind woman of normal height. The man's father was si
Kruka [31]

Answer:

None

Explanation:

Assuming the allele for height is T. Since dwarfism is autosomal dominant, a normal height person will be tt while a dwarf person will either be TT or Tt.

Hence, a man who is dwarf but has a normal height father will have a genotype of Tt and an average height woman will have a genotype of tt.

Tt   x   tt = 2Tt (dwarf), 2tt (normal height)

If the allele for vision is represented by B. A normal vision man will have the genotype X^BY while a colour blind woman will have the genotype X^bX^b.

X^BY   x    X^bX^b  =  X^BX^b, X^BX^b, X^bY, X^bY

Since, colour blindness is X-linked and recessive, females need two alleles ( X^bX^b) in order to be affected and none of their daughters posses two alleles.

Hence, none of their daughters is expected to be colour blind with achondroplasia.

5 0
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