Sexual reproduction plays an important role in variation such that; production of unique gametes during meiosis, and the random combination of male and female gametes upon fertilization provides a large amount of variation (option A).
<h3>What is sexual reproduction?</h3>
Sexual reproduction is the process whereby a new organism is created by combining the genetic material of two organisms.
During sexual reproduction, organisms produce gametes through a process called meiosis.
This meiosis allows genetic diversity in the unique gametes produced, which causes random combination of male and female gametes upon fertilization provides a large amount of variation.
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It is the abdominal cavity that contains the digestive organs.
Carbon becomes apart of living organisms by,producers take in Carbon Dioxide (from air) and consumers eat the producing organisms (producers).
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The main difference between the Rough Endoplasmatic Reticulum (RER) and the Smooth Endoplasmatic Reticulum (SER) is that the RER has attached to its surface ribosomes. This changes its appearence.
The RER and SER also differ in their function. Whereas the SER is involved in the synthesis and storage of lipids that are used in the generation of the cell membrane (includes cholesterol and phospholipids), the RER participates in the synthesis of enzymes and proteins.