The scientific community dismissed John Needham’s attempt to prove spontaneous generation. What was the reason that they gave? * A. By sealing off the flask he deprived the environment of air, a requirement of spontaneous generation

B. He used the wrong type of flask

C. He left the flasks open to the air for too long

D. He did not boil his broth long enough and the flasks were not cleaned prior to the experimenter.

He did not boil his broth long enough and the flasks were not cleaned prior to the experimenter

The scientific community dismissed John Needham’s attempt to prove spontaneous generation. What was the reason that they gave

hope this

explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)