How farm labourers, farm owners and consumers would have been affected by the outbreak of mastitis?

What kind of seafood would you expect to have the highest levels of mercury and why? kelp, because they use the sun to photosynthesize on the bottom trophic level. oysters, because they filter feed on plankton on a lower trophic level. small fish, because they eat plankton on a higher trophic level. sharks, because they feed on organisms on a higher trophic level.

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

Describe how a non-resistant staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin