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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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Answer:

(based of what I would think )

Explanation:

If we didn't have decomposers, the waste left from the food we eat and what the wolves and stuff eat would grow into a problem, we would have ( i think) a mess or something

( more people can answer this better then me)

4 0
2 years ago
What should be replaced with the "?"*
barxatty [35]

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6 0
3 years ago
why would having both polar and nonpolar properties in a protective boundary be advantageous for the cell?
Reika [66]

Explanation:

The polar nature of the membrane’s surface can attract polar molecules, where they can later be transported through various mechanisms. Also, the non-polar  region of the membrane allows for the movement of small non-polar molecules across the membrane’s interior, while preventing the movement of polar molecules, thus maintaining the cell’s composition of solutes and other substances by limiting their movement.

Further explanation:

Lipids are composed of fatty acids which form the hydrophobic tail and glycerol which forms the hydrophilic head; glycerol is a 3-Carbon alcohol which is water soluble, while the fatty acid tail is a long chain hydrocarbon (hydrogens attached to a carbon backbone) with up to 36 carbons. Their polarity or arrangement can give these non-polar macromolecules hydrophilic and hydrophobic properties i.e. they are amphiphilic. Via diffusion, small water molecules can move across the phospholipid bilayer acts as a semi-permeable membrane into the extracellular fluid or the cytoplasm which are both hydrophilic and contain large concentrations of polar water molecules or other water-soluble compounds.

Similarly via osmosis, the water passes through the membrane due to the difference in osmotic pressure on either side of the phospholipid bilayer, this means that the water moves from regions of high osmotic pressure/concentration to regions of low pressure/ concentration to a steady state.

Transmembrane proteins are embedded within the membrane from the extracellular fluid to the cytoplasm, and are sometimes attached to glycoproteins (proteins attached to carbohydrates) which function as cell surface markers. Carrier proteins and channel proteins are the two major classes of membrane transport proteins; these allow large molecules called solutes (including essential biomolecules) to cross the membrane.

Learn more about membrane components at brainly.com/question/1971706

Learn more about plasma membrane transport at brainly.com/question/11410881

#LearnWithBrainly

5 0
3 years ago
Se coincidera que un virus es un ser vivo
katen-ka-za [31]

Answer:

This means:

It will be agreed that a virus is a living being.

Explanation:

Hope I helped ya.

You can give da other girl brainliest.

<u><em>< Sarah ></em></u>

6 0
3 years ago
True or False:<br> Shearing can cause a rock to break and slip apart
V125BC [204]

Answer:

True

Step-by-step explanation:

mark brainliest

3 0
3 years ago
Read 2 more answers
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