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Ne4ueva [31]
3 years ago
14

What happened to the farallon plate?

Biology
1 answer:
pshichka [43]3 years ago
5 0
The Farallon plate was forced under north America by slow geological movement, this process is called subduction.
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Assume that you have 1 mL of a solution of amylase (an enzyme) at a concentration of 15 mg protein/mL. Calculate the volume of d
lidiya [134]

Answer:

42,5 mL

Explanation:

We need to use the serial dilution formula beacuse we start with a stock concentrate solution and we need to prepare a new less concentrated one.

DF=\frac{Vi}{Vf}

<u>DF in the dilution factor, Vi is the initial volume and Vf is the final volume.</u>

The first step is to have the same measurment unit so we need to convert 345 µg to mg.

we know that 1 µg equals 0,001 g, hence:

345 µg = 0,345 mg

now the final volume is 0,345 mg  protein/ mL and the inital volume is 15mg protein/mL, both of them are in the same unit so we can use the formula

DF= \frac{15mg protein/mL}{0.345mg protein/mL}

DF= 43,5 mg protein/ mL

Now since the question said that we already have 1.0mL of the amylase stock solution we need to subtract that 1.0mL to the 43,5 mg protein/mL

43,5mL-1,0mL = 42,5 mL

So, we need 42,5 mL of diluting buffer if we want a final concentration of 345 µg protein/mL (0.345 mg protein/mL)

8 0
3 years ago
Why do scientists organize organisms into different groups?
lora16 [44]

Answer:

Scientists use a system like this to group living things. the grouping are based on common traits. this system helps scientists to study the million of organisms of new organisms are discovred each year

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7 0
3 years ago
Hybridization between two species from different genus is known as __________
gladu [14]

Answer:

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