Determine whether the following species are extinct, endangered, or threatened.
The Tasmanian tiger, the largest known carnivorous marsupial, was wiped out of the wild due to constant
hunting:
The Amur leopard is now gone from most of its original habitat due to human activity. Only twenty to
thirty Amur leopards remain in the wild:
Western Lowland gorilla populations have dropped sixty percent in the past twenty-five years due to
poaching, habitat loss, and, mainly, disease. Their numbers are expected to keep dropping, and the
species could soon disappear:
The Eastern gemfish population has declined due to commercial fishing. New protection efforts seem to
be helping the population slowly recover:
The golden toad was forced from its breeding sites when erratic weather caused pools to dry up. No
frogs have been found in over two decades:

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.

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation: