Adaptations can only arise if
there is within a species.

What is avogadro’s number, and why is it useful

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

An observation that requires measurement is called quantitative observable or qualitative