Which best provides evidence that combustion follows the law of conservation of matter? A. Wood burning is an exothermic reaction that gives off heat.
B. When wood burns, the carbon atoms in the wood are converted into carbon dioxide.
C. Combustion reactions often generate both thermal energy and radiant energy.
D. Combustion is a chemical reaction in which oxygen reacts with some form of matter.

Why is the theory of evolution important? it disproves all other theories about how life began. it provides a topic for debate. it is a unifying concept in biology. it explains how life began. i know for sure, it is not "it is a unifying concept in biology."

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?

What could happen if two base pairs on a strand of dna or switched