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olga_2 [115]
3 years ago
6

Which is a role of photosystem l in the light reactions?

Biology
1 answer:
OlgaM077 [116]3 years ago
8 0
B . to supply energy for splitting the water molecules
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Which of the following are contributing factors to the extinction of species?
meriva

Answer:

Deforestation

Climate Change

Invasive Species

Explanation:

Seventy percent of the Earth's plant and animals dwell in forests, and deforestation affects them directly. Once their habitat is lost, they are on their way to extinction.

Climate change also causes extinctions not only as a result of species intolerance to high temperature, but more commonly via a variety of related factors that alter a species’ interactions with other species.

Invasive species invade foreign territory. They use resources that the other species depend on. Then naturally one of the species will die off.

8 0
3 years ago
Of the answers below, what is the smallest nucleotide sequence that could code for a protein with 300 amino acids?
ololo11 [35]
The nucleotide sequence would have to have 900 nucleotides in order to code for a protein of 300 amino acids. When translating RNA into proteins, RNA is read 3 bases at a time. Each group of 3 bases is a codon, and each codon codes for an amino acid. When read, the proper amino acid is added to a growing chain of amino acids, which will be folded to become a protein.

Therefore, 300 amino acids * 3 nucleotides per amino acid = 900 nucleotides.
6 0
3 years ago
Discribe the population growth for the first 3 years.
Triss [41]

Answer:

The answer would be A

PLEASE MARK ME BRAINLIESTY

THE ANSWER IS A BECAUSE IT GROWS VERY FAST UP IN A FAST DIRECTION

THANKS

Explanation:

6 0
3 years ago
Read 2 more answers
Which best describes the cell theory
Neko [114]
Each cell is alive even if it is part of a multi celled body, and all living organisms consist of one or more cells. Also, cells reproduce by dividing so it follows that all existing cells must have arisen by division of other cells. As a cell divides it passes it hereditary material- its DNA- to offspring.
8 0
3 years ago
How is the process of natural selection involved in evolution?
Ann [662]
Natural selection means that the organisms better adapted to their environment, that is, they have developed the right characteristics/skills/response to the external ambient, have higher chance to survive, making the next generations genetically inherit such acquired surviving characteristics.
These generations will thus have a higher chance of survival, making these species being "naturally selected" as survivors, while those who haven't or are slower in this process, have a higher risk of elimination. 
7 0
3 years ago
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