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PolarNik [594]
3 years ago
9

Which of the following systems or structures is correctly paired with its function?

Biology
1 answer:
erik [133]3 years ago
6 0

Its the third answer I just took it and it was the peripheral nervous system

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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
Cells grow in order for _____ to grow and reproduce. organisms cycles proteins DNA molecules
Savatey [412]
The answer is organisms
5 0
3 years ago
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Which foods should the nurse encourage the mother to offer to her child with iron-deficiency anemia?
Valentin [98]
Foods rich in iron include:

Red meat, pork and poultry.
Seafood.
Beans.
Dark green leafy vegetables, such as spinach.
Dried fruit, such as raisins and apricots.
Iron-fortified cereals, breads and pastas.
Peas.

4 0
3 years ago
Which of these equations describes photosynthesis
wlad13 [49]

B. 6CO2 + 6H2O ------> C6H12O6 + 6O2

I hope I helped!

4 0
3 years ago
Deoxyribose (sugar)
Kazeer [188]
The right answer is DNA. That consist of a sugar, deoxyribose, a phosphate and a nitrogen-containing base
5 0
2 years ago
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