Rats carry bacteria that cause bubonic plaque. fleas that bite the rats
become infected, and then they transmit the plague bacteria to other animals
they bite, including humans. which role do both fleas and bacteria play in this
situation?

a. predator
b. parasite
c. prey
d. host

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.

Gregor mendel is best known for his work with pea plants and for uncover many of the mysteries of genetics. one of his major findings stated that there were specific, physical units of inheritance that are transmitted during reproduction. what is the the name given to these units of inheritance which can be found on chromosomes? a) centromeres b) cytoplasm c) genes d) nucleotides

Which statement is a physical property? becomes moldy quicklyeasy to digestconducts electricity poorlydoes not burn