Describe how the three layers of the embryo are formed from a single layer of cells in the blastula.

Which of the following represents the chemical reaction of hydrazine and hydrogen peroxide to produce nitrogen and water? a. nitrogen + hydrogen peroxide → hydrazine + water b. nitrogen + water → hydrazine + hydrogen peroxide c. hydrazine + hydrogen peroxide → nitrogen + water d. water + hydrogen peroxide → nitrogen + hydrazine

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

_is a product of the first stage of photosynthesis.atpglucosecarbon dioxidewater