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KATRIN_1 [288]
3 years ago
13

Respiration most like the reverse of

Biology
1 answer:
aliina [53]3 years ago
5 0
Respiration is the reverse of Photosynthesis.
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Plants form the base of most food chains. Where do plants get their energy?
disa [49]

Answer:

the sun

Explanation:

photosynthesis

7 0
3 years ago
How is Matter cycled in ecosystems?
Mars2501 [29]

Answer:

All matter goes back into carbon dioxide, water, and minerals

Explanation:

Matter cannot be created or destroyed. There is a constant cycle of matter that repeats itself.

4 0
3 years ago
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
At what angle is earths axis tilted in relation to the sun?
maxonik [38]
23.5 degrees relative
6 0
3 years ago
Which two of these characteristics are examples of endoskeletons?
Sedbober [7]
<span>Endoskeletons are bony forms on the inside of the body of an organism. In these cases, fish scales and bones on a human are inside the skin. These would be endoskeletal in nature. Echinoderms with plates and arthropods with appendages would be examples of exoskeletons.</span>
8 0
3 years ago
Read 2 more answers
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