Here's an explanation to help answer the question
Eons are divided into eras, which are in turn divided into periods, epochs and ages. The terms "eonothem", "erathem", "system", "series", and "stage" are used to refer to the layers of rock that correspond to these periods of geologic time in Earth's history.
An isotonic solution is when two solutions, separated by a semipermeable membrane, have equal concentrations of solutes and water. Imagine you're at a party and there are an equal number of guests in the living room and in the kitchen. It doesn't make much of a difference where you stand because you are equally as comfortable in either room. You have just as much space, you can move just as easily, and you have equal access to food. You don't spend a lot of energy trying to get out of one room or into another. This party is like an isotonic solution; everything is equal from room to room.
75% do a punnet square if you don’t understand
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The correct answer of the given question above would be option C. The statement above gamete formation during meiosis that is false would be this, parental gametes can be formed only if there is no crossing over during meiosis. I<span>f crossing over occurs, half of the gametes formed are parental and the other half are recombinant. Hope this answer helps.</span>