a variable is the right answer
Retrotransposons are class of transposons that contain long terminal repeats and code for an enzyme that synthesize DNA using an RNA template. It is found in all eukaryotes but absent in prokaryotes. About 42% of human genome is made up of retrotransposons. They are particularly abundant in plants, in maize 49-70% genome is made up of retrotransposons.
Answer:
variation,inheritance,high rate of populations growth,differential survival and reproduction
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Answer: Matter and Energy
Explanation:
The producers make food by the help of the process known as photosynthesis.This is the way by which the energy from the sun is transferred from sun to the plants.
Matter is made and transferred from one tropic level to another tropic level. The organic matter is transferred from the producers to the consumers.
The primary consumer converts energy from them to the secondary consumers.
So, the conclusion is that matter and energy is transferred from one tropic level to another tropic level.