Antibodies are proteins that are made by B cells. They are able to destroy pathogens in all
of the following ways except:
• Making the pathogen ineffective by binding to the pathogen's membrane proteins.
Causing the pathogen to clump together, making it easier for phagocytes to destroy.
Surrounding and engulfing the pathogen.
• Activating complement proteins that weaken the pathogen's membrane.

this is a good question! i'll do some research and come back when i have the answer!

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.

what are the awnser choices? i mean, without choices, it is an incompleat