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Setler [38]
3 years ago
6

What relationship might exist between fish kill events and rainfall?

Biology
1 answer:
vampirchik [111]3 years ago
8 0

Answer:

Large rain events

Explanation:

They can also rapidly circulate the water in a lake or pond, causing changes in the position of oxygen rich water in a short period of time. This quick 'turnover' of the water can quickly decrease the amount of oxygen available to fish, essentially causing them to suffocate.

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The correct answer is B ❤️

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Describe the characteristics of the<br> four zones found in the ocean.
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Answer:

the four zones found in the ocean:

<em>the intertidal zone,</em> which is the area of the seashore that's underwater at high tide and above water level at low tide. this zone also has various kinds of organisms, like seastars, sea urchins and a lot of different species of coral !

<em>the pelagic zone,</em> which could be described as all of the sea other than the sea along the shoreline or the bottom of the ocean. it's funny because the word is actually derived from ancient greek, and the word pelagic literally means

"<em>open sea</em>" !

<em>the abyssal zone,</em> which can also be called the abyssopelagic zone (i don't even know how to say that-) describes the "depths" or the very bottom of the ocean, especially between about 10,000 and 20,000 feet (3,000 and 6,000 m) down !

and <em>the benthic zone, </em>which is made up of the "bottom", like the bottom of a lake or ocean floor, the sediment surface, and some sub surface layers. there's actually organisms living in that zone, too, and they're called benthos ! (i think that's really cute, lil benthos uwu)

<em>~hope i helped ouo have a nice rest of ur day~</em>

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3 years ago
What is mitosis?
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the part of cell division when 2 nuclei form.

Explanation:

6 0
3 years ago
Enzymes are biological catalysts. Enzymes are proteins that are found inside cells to
kari74 [83]

Answer:

Explanation:

independent= pH as you will change the pH in order to test your hypothesis and see if it's true

dependent= how amylase works-needs to be measured so you can see how easily it does it function depending on the pH (dependent on the independent variable)

6 0
3 years ago
A certain buffer is made by mixing a weak acid HA and its conjugate base A–. When HA is present at a concentration of 0.5 mM and
MAVERICK [17]

Answer:The ratio of the concentrations of HA  and A^- when the buffer has a pH of 7.02 is 0.69

Explanation:

The dissociation constant for formic acid = K_a=1.8\times 10^{-4}

Concentration of HA= 0.5 mM

Concentration of A^-= 0.1 mM

pH = 6.16

First we have to calculate the value of K_a.

Using Henderson Hesselbach equation :

pH=pK_a+\log \frac{[A^-}{[HA]}

Now put all the given values in this expression, we get:

6.16=pK_a+\log (\frac{[0.1]}{0.5})

pK_a=6.86

To calculate the ratio of the concentrations of HA  and A^- when the buffer has a pH of 7.02.

Using Henderson Hesselbach equation :

7.02=6.86+\log \frac{[A^-]}{[HA]}

7.02=6.86+\log \frac{[A^-]}{[HA]}

\frac{[A^-]}{[HA]}=1.44

\frac{[HA]}{[A^-]}=0.69

Thus the ratio of the concentrations of HA  and A^- when the buffer has a pH of 7.02 is 0.69

7 0
3 years ago
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