Describe why you only use the coarse knob at low power when focusing

Indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. agouti x albino a) 1/2 albino, 1/2 agouti b) all agouti c) 3/4 agouti, 1/4 albino

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content

What is the difference between a scientific hypotheses and a scientific theory?