Its Gene recombination during sexual reproduction
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B is not right
c or a,
a is not right
c is correct because they need each other to live
hope that helped :)
Answer: conservative model
Explanation: DNA isolated after one generation produced a single band which was a higher and intermediate in density between the heavy and light Nitrogen isotopic DNA used, showing that the first generation was a hybrid DNA. This observation fit with the dispersive and semi-conservative models only. And so at this generation, the conservative model was discarded.
Secondary consumers eat primary consumers. They mostly eat meat aka other animals but can sometimes eat plants and animals
Autocrine signaling is a form of cell signaling in which a cell secretes a hormone or chemical messenger (called the autocrine agent) that binds to autocrine receptors on that same cell, leading to changes in the cell.
