dr. landen is performing an experiment to determine if a new chemical that he has synthesized is effective at killing plated colonies of group a streptococcus bacteria, which can cause infections in humans and other organisms.

dr. landen plates the same amount of group a streptococcus onto seven identical plates, then places differing amounts of his newly synthesized chemical onto the plates. he keeps the plates in identical environments, then measures the amount of bacteria present after 24 hours.

dr. landen's results show that the chemical is very effective at killing the plated bacteria. what could dr. landen hypothesize next in order to continue his research?

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

black

lasagna

lunch

math

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.

point counts

mark brainliest!