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3 years ago

The variability in marine salinity between habitats does not impact the fish living there.

2 answers:

4 0

Well, there are two kinds of organisms: osmoregulators, that can regulate the level of salt and the salinity does not affect them (an example is salmon: for salmon this sentence is true. Generally, for most fish this sentence is true)

However, for some species, such shark - osmoconformers - this is false: they are affected by the salinity. in general I would conclude that This is false: the marine salinity DOES affect the fish (and other organisms) living there.

Lady_Fox [76]3 years ago

4 0

the answer is false i just took the test.

and just a side note you cant say the answer is true and false in the same answer.

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2 years ago

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Imagine that you are a graduate student working in a cancer lab. You accidentally mix unlabeled tubes of carcinoma cells with tu

LekaFEV [45]

Answer:D.D.) Suspend the cells in liquid agar culture and monitor which culture continues to grow.

Explanation

Options A-C are correct except D.

→Increase in Telomere length is indicative of abnormal growth, cancer cells can reactive telomerase to increase cell's length.

→Once a monolayer is reached; this a stage of a complete normal cell division , a cell that goes beyond this stage must be mutated. assuming all other factors are constant .

Uncontrolled cell division is an indication of virulent growth in mutated cells.

Cancer cell requires a ,medium of living host to thrive, alga medium will not support growth for carcinoma cells -the correct answer.

Completed Que.

:Imagine that you are a graduate student working in a cancer lab. You accidentally mix unlabeled tubes of carcinoma cells with tubes of normal epithelial cells. Which of the following is NOT a possible strategy to allow you to distinguish which tubes contain carcinoma cells?

A.)Monitor telomere length over time during multiple cell divisions.

B.) Plate the cells in culture and look for the culture that stops dividing once a monolayer is reached.

C.) Monitor the rate of cell division.

D.) Suspend the cells in liquid agar culture and monitor which culture continues to grow.

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3 years ago