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Julli [10]
4 years ago
13

During early ages, the alkaline hot liquids from the vent met the acidic cold ocean water. The acidic ocean water produced a nat

ural gradient across mineral wall in rocks that are rich in catalytic minerals. This difference in conditions converted and hydrogen into organic carbon-containing molecules. These can react with each other to form organic molecules, such as nucleotides and amino acids.
Biology
2 answers:
lorasvet [3.4K]4 years ago
8 0

There are so many examples for that in different areas, like biology experiment carried out in our lab recently.

Here's one link:https://www.creative-biogene.com/support/Knockout-Cell-Lines-in-Antibody-Screening-and-Validation.html


vekshin14 years ago
6 0

Answer:

Explanation:

The alkaline hot liquids reacts with the acidic cold ocean water to form minerals which are in the form of salts. When the negative ion of a base react with the positive ions of an acid, salts are produced.

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Most of europe is located in the tropics (between the tropic of cancer and tropic of capricorn).
galina1969 [7]
This is B; false.

Europe is not located in the tropics. In fact, no European countries lie in the tropical region. Europe is located in the temperate climate zone. 
6 0
4 years ago
3
Finger [1]

Answer:

eghydew

Explanation:

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5 0
3 years ago
Which phrase describes a gene in its simplest form?
vovangra [49]

Answer:

Option-D, a segment of DNA

Explanation:

A gene represents the particular segment of DNA which contains the instruction for the trait of an organism. The nucleotide sequence present in the segment provides the instruction in the form of codons.

The gene is present in the form of its alternative form called alleles which are located on the chromosomes at locus. The alleles represent the variants of the gene and therefore controls the two variety of a single trait.

Thus, Option-D is correct.

7 0
3 years ago
7. What is the kinetic energy of a 3-kilogram ball that is rolling at 2 meters per second?
nydimaria [60]
Kinetic energy = 0.5*M*V^2 

 Q7-
 
0.5*3*(2^2)= 6J

Q8a- 

0.5*2*(2^2)= 4J
0.5*4*(3^2)=18J 
the second ball has more kinetic energy.

Q8b-

at the max height, all the kinetic energy is converted to potential energy, 

gravitational potential energy is = M*g*h

that theory would apply if you wanted to work out the maximum height achieved if the balls were thrown upward by rearranging. But, we are simply working out which ball will have more potential energy so:

First ball:
2kg*9.81(g)*10m = 196.2J

Second ball
4kg*9.81*10m= 392.4J

The second ball has more potential energy 


5 0
3 years ago
What is clearcutting?
liq [111]

Answer:

cut down and remove every tree from (an area)

Explanation:

hope that helps

4 0
3 years ago
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