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Serggg [28]
3 years ago
7

Answer the question !!! What improvements could I make if I wanted to have a better controlled experiment ? And think about some

uncontrolled variables that may have affected the data ?? Please help me !!!!!

Biology
1 answer:
iris [78.8K]3 years ago
3 0
You could have made sure the books were the same weight and your friends could have done it at the same time as you
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N = 7 then 3n + 2 - n =​
Elan Coil [88]

Answer:

16

Explanation:

(3*7)+2-7

21+2-7

23-7

16

4 0
3 years ago
Describe the technique used to care for instrumentation and supplies that have been exposed to the inside of the intestinal trac
Kitty [74]

Answer:

The instruments that is being used to care for the instrumentation and supplies that have been exposed to the inside of intestinal tract are kept aside from the other sterile instruments.

The instruments are kept aside to protect the other instruments from being contaminated by it.

The instruments needs to be sterile as it cannot be replaced again and again for every technique that is being carried out in patients.

So, the instrument that is used once are kept separated.

6 0
2 years ago
An antibody has been isolated that binds to F-actin but not to G-actin. What structural feature(s) of F-actin do you suppose the
galina1969 [7]

Answer:

F-actin is a double helical filament as opposed to G-actin,which is a globular protein .Each actin filament has two ends,called the plus and

the minus ends, which makes it recognizable from each other.This gives the structure a distinct polarity.

Explanation:

Actin is the most abundant protein that is found in almost all eukaryotic cells.Its a most important part cytoskeleton as its a monomeric subunits(size 42kDa) of two types of filaments i.e. microfilaments and thin filaments in cells. Actin is essentially required to maintain stability and morphogenesis of cell.It is involved in numerous significant processes such as endocytosis,cell division and migration.Actin is present in two forms:

•G-actin

•F-actin

The two forms of actin are different structurally.

G- actin is a globular shaped protein,usually present in free form(a monomer),having a tight binding site for another actin monomer.Each monomer has ATP. Upon polymerization of G-actin monomers, a polymer called F-actin filaments is form. This process is driven by hydrolysis of ATP.

7 0
3 years ago
Explain the role of the valves in the heart
beks73 [17]

The valves in the heart make sure that blood goes in only one direction. For example, when blood is pumped from the left ventricle the mitral valve won't allow the blood to come back into the left atrium. And the aortic valve will prevent the blood from coming back into the left atrium from the aortic arch.

3 0
2 years ago
The distance a toy car travels over time is shown in the graph.
worty [1.4K]

Answer:

200mph

Explanation:

Cars can go fast

7 0
3 years ago
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