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ruslelena [56]
3 years ago
10

Cells require energy to perform tasks such as movement, active transport, and the construction of large molecules. This energy c

omes from...
Biology
1 answer:
Lena [83]3 years ago
8 0

It comes from the nucleus

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One of the questions early geneticists had to answer was how only four nucleotides can specify placement of 20 amino acids in pr
jenyasd209 [6]

Answer:

<h2>Codon </h2>

Explanation:

The sequence of DNA is transcribed into mRNA, containing the sequence  for protein synthesis, protein is synthesized according to the codons in mRNA.  This sequence of nucleotide on DNA/ RNA is divided into a series of three nucleotide units, and one unit of three nucleotide is  known as codons.

There are overall 64 codons, 61 codons out of 64 codons, codes for overall 20  amino acids, and the remaining three  are stop codons.

These there codon do not code for any amino acid.

And these 61 codons, they  code for total 20 amino acids. So one amino acid can be coded by one or more than one codons.

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3 years ago
Match each moon or planet to the most accurate characteristic.
Olegator [25]

Each moon or planet matched to the most accurate characteristic;  

1. It contains large amounts of frozen water - C. Europa

2. High levels of carbon dioxide increase the temperature of its atmosphere - B. Venus

3. It does not have enough gravity to have an atmosphere - A. Earth's moon

4. Astronomers believe there is a good chance it contains liquid water - D. Mars

Europa is the smallest of the four Galilean moons of Jupiter. Others are Io, Ganymede, and Callisto. An outer layer of water, about 100 km (62 mi) thick, covered the surface of Europa. A part of the outer layer (crust) is said to be frozen, while the other part is a liquid ocean below the ice.

Venus is the second planet from the Sun and the hottest planet in the solar system. The atmosphere of Venus is dense, and it is composed mainly of carbon dioxide (roughly 96.5 percent), which traps heat and causes a greenhouse effect.

6 0
2 years ago
Why do scientists believe that winters might be milder on the Eastern Seaboard in the future?
sammy [17]
D. A change in the amount of polar ice will alter how ocean currents move
4 0
2 years ago
Which best describes the role of a producer in an ecosystem?
Igoryamba
<span>B. A producer supplies energy for the consumers in the ecosystem.

In science, a producer is an organism that can create it's on food and serves as food for a consumer. An example of a producer could be seaweed, or algae. 
</span>
7 0
3 years ago
Read 2 more answers
An important purpose of a cell wall in bacteria is to
s344n2d4d5 [400]

Answer:

Prevent the cell from collapsing

Explanation:

Not 100% positive

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3 years ago
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