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The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2

Plants contain the carbohydrates starch and cellulose.in the spring when stem growth is at its fastest rate, cellulose production rates are increased in some plants. in the months with less sunlight

What determines the genotype or an organism