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zloy xaker [14]
3 years ago
15

A new life form was discovered on Mars, one based upon Silicon instead of Carbon. Explain what properties Silicon has that allow

life to be based upon it? Explain fully for full credit. Use the periodic table to help.
Biology
1 answer:
Tcecarenko [31]3 years ago
6 0
Silicon <span>(Si) lies in the same group on the periodic table as carbon (C). Similar to carbon, it is able to form bonds with four other atoms at the same time, it is able to form polymers and combine with oxygen (O2). Silicon could allow life to be based on it as it can create molecules sufficiently large to carry biological information.</span>
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Peahens prefer to mate with peacocks that have the brightest and largest tail displays. The peacock’s tail is a disadvantage to
Lera25 [3.4K]

Answer:

Peacock with larger tails are most likely to produce more progeny.

Explanation:

Sexual selection is a type of natural selection wherein individuals with some specific genetic traits are preferred as a mate for interbreeding by the individuals of the opposite gender of the same species. For instance, in some species, males with large size have a greater chance to mate and pass on their genes to the progeny. This results in an increased frequency of the genes for the larger body size in population over time. Therefore, sexual selection results in the reproductive advantage for some individuals over others of the same species and sex.

In the given example, a peacock with larger tails is preferred as a mate by peahens and is able to produce more offspring. Due to its reproductive advantage, larger tails in peacocks are not selected against by natural selection.  

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3 years ago
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Answer:

The protein has a lysine or arginine at it's C-terminal end.

Explanation:

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This should be right

I will correct if it wrong!

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If the nitrogen is concentrated in one area but at a low concentration, then Species A may have formed nodules because it is closer to the concentrated nitrogen. Species B didn't because the nitrogen that is active is being taken by Species A.

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