Which of these is a deadly virus?
a) e. coli.
b) tetanus.
c) ebola.

The idea of spontaneous generation was disproved by in a experiment involving jars of meat

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d

What makes a dominant allele different from a recessive allele