What is one of the byproducts of yeast fermentation?

Ahypothesis that has been tested again and again , with similar results each time may become a law , true or false

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

Describe the two types of vascular tissue