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jeka94
3 years ago
6

Which statement is true? a. tissues are made up of organs b. body systems are made up of organs. c specialized cells are made up

of tissue. d organs are made up
of body systems
Biology
2 answers:
JulsSmile [24]3 years ago
5 0

Answer: B body systems are made up of organs

crimeas [40]3 years ago
3 0

Answer:

B

Explanation:

Many organs such as stomach, teeth, are some things that make up the digestive system.

remember: organelles -> cells -> tissue -> organ -> organ system -> organism.

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A bacterial sample has a cell density of 1.85 x106 CFU/mL. What plate dilution should yield a countable plate? Which two dilutio
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Explanation:

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Now take 100ul from 10^1 dilution and add to next 900ul saline this is 10^2 dilution, similarly do upto 10^5 dilution.

Then take 100ul from 10^ 4 and 10^5 dilution seperately and plate on LB agar plate seperetely and count the colonies.

Cfu/ml formula= (No.of colonies x dilution factor)/0.1 ml

So suppose, 18 colonies formed on 10^4 dilution then total no. Of cells in stock will be 18x10^4/ 0.1= 18x10^5 cfu/ml.

If we dilute 10^4 or 10^5 that's leads to colony count of 18-19 colonies on 10^4 dilution while 2 colonies should come on plate of 10^5 dilution.

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3 years ago
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Zigmanuir [339]

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