German scientist schleiden and schwann determined that the basic unit and function in the living things is the
a. atom
b. molecule
c. cell
d. nucleus

Why does the skin of your finger shrink when you wash clothes for a long time?

The table below shows the number of foot bones in some horse fossils.horse fossil recordhorse fossil number of foot bonesp 19q 17r 24s 13ancient horses had more bones in their foot then present-day horses. the present-day horse has 11 foot bones. what is the correct order of evolution of the horse starting from the youngest fossil? a. q p r s b. s r p q c. s q p r d. r p q s

What are the student's observations and inferences before he starts his investigation?