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levacccp [35]
3 years ago
10

What percentage of the atmosphere is made up of greenhouse gases like carbon

Biology
1 answer:
qaws [65]3 years ago
8 0

Answer: Nitrogen accounts for 78% of the atmosphere, oxygen 21% and argon 0.9%. Gases like carbon dioxide, nitrous oxides, methane, and ozone are trace gases that account for about a tenth of one percent of the atmosphere.

Explanation:

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Answer:

D) heat.

Explanation:

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Learn more on thermal energy, here:

brainly.com/question/11278589 - Relations of thermal energy with internal energy.

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2 years ago
A scientist investigated DNA replication in two groups of cells, labeled A and B. She injected radioactively labeled nucleotides
hichkok12 [17]

Answer:

A is a eukaryotic cell while B is a prokaryotic cell

Explanation:

The researcher can conclude that <u>cell A is eukaryotic while cell B is prokaryotic.</u>

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<u>Prokaryotic cells, however, lack a nucleus</u>. Their DNAs lie freely within the cytoplasm. This thus means that replication can only happen in the cytoplasm. Hence, it follows logically to find a new DNA segment in the cytoplasm of cell B.

3 0
3 years ago
What is the difference between a cell wall and a cell membrane
kicyunya [14]
The cell wall is the outside layer of the cell whereas the cell membrane is surrounds the cytoplasm of the cell.
8 0
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based on the data for the groups of cells cultured with 0.1 serum (groups 3 to 7), identify which of the four proteins tested do
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p18, p21 and p27

Explanation:

Four proteins have been obstructed in this investigation and the concentration of DNA synthesis was evaluated in various cell cultures and seeing which proteins could play a significant role in the cell cycle.

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