Some plant seeds live through cold winters but do not sprout until spring. in winter these seeds are

Creation of an unnaturally uniform sample to represent a diverse populationcan be avoided by: a. including only willing b. asking another scientist for .c. choosing only identical participants.d. selecting individuals at random.

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass