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kolezko [41]
3 years ago
7

Which statement is a fundamental principle of the cell theory?*

Biology
1 answer:
const2013 [10]3 years ago
3 0

Answer:

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  • Which statement is a fundamental principle of the cell theory?*

{\huge{\pink{\underline{\underline{Answer}}}}}

Living organisms are composed of cells.

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Using at least 3 steps explain how to make a wet mount slide with an Elodea plant​
Masja [62]
Step One - Obtain a clean microscope slide.

Step Two - Place a drop of liquid on the slide. This is the “wet” part of the wet mount. The liquid used depends on the type of cell being viewed:
If examining a plant cell, tap water can be used.
If examining an animal cell, physiological saline (or contact lens solution) must be used, because if plain water is used, the cell will explode from osmotic pressure. Unlike plant cells and bacteria, animal cells have no cell wall to structurally support them.

Step Three - Obtain the specimen to be used. Some introductory biology classics for viewing include:
Skin of an onion bulb: In order to view the cells, a very thin layer of skin must be obtained. Take a single layer of onion and bend it towards the shiny side. After it snaps, pull gently, and a transparent layer of skin, similar to Scotch tape, will appear.
Elodea leaf: Elodea leaves are two cell layers thick. The cells in one layer are smaller than the cells in the other, so elodea leaves can be used to better understand a microscope's depth of field.
Cheek cells: Human epithelial cells can be obtained by gently rubbing a toothpick on the inside of the mouth, and then swirling the toothpick in the physiological saline on the slide.
Pond water: Obtaining some water from a pond makes wet mount preparation a breeze, since the water and the specimens are both included.
Hope this helps
8 0
3 years ago
Use the drop-down menus to determine which percentage is equal to each fraction.
Stella [2.4K]

Answer:

Hope it help you

Stayhomestaysafe

Plz mark my answer brainliest✍️✍️

Explanation:

1/4 : 25%

3/4 : 75%

4/4 : 100%

2/4 : 50%

REAL NAME - SHRESTH DUBEY

3 0
2 years ago
Most land mammals have the ability to rest one hemisphere of their brains at a time. Please select the best answer from the choi
raketka [301]
The answer is false, I just took the quiz
8 0
2 years ago
Read 2 more answers
Each individuals ___ has different sequences of nitrogenous bases
bixtya [17]
The answer to this is most certainly not A or C, so you can rule those out. If you look at DNA, every persons has different nitrogenous bases (<span>adenine (A),guanine (G), thymine (T), and cytosine (C)) 
This means the answer to your questions is #2, DNA.
Hope I helped you!</span>
8 0
2 years ago
Read 2 more answers
EXTRA POINTS FOR THIS
sergeinik [125]

Answer:

No

Explanation:

Matter can not be created or destroyed it can only change form. For example two Oxygen atoms can react with one hydrogen atom to form water but the oxygen and hydrogen is not destroyed,

3 0
2 years ago
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