Gwen is training for a marathon and fueling her body with healthy food what kind of energy changes the food into energy for her muscles A=thermal

B=solar

C=physical

D=chemical

I don’t know witch one it is help plz

What is called the "building block" of life?

The distant ancestors of tigers may have had bodies without stripes. use the theory of natural selection to explain how tigers may have evolved to have stripes.

10111213141516lactic acid fermentation differs from ethyl alcohol fermentation in thato in ethyl alcohol fermentation co2 is also producedlactic acid fermentation can occur in all living thingsethyl alcohol fermentation can only occur in plantsonly lactic acid fermentation can produce more atp