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Jlenok [28]
3 years ago
15

Which statements about salt water are true? Check all that apply.

Biology
2 answers:
timofeeve [1]3 years ago
5 0

Answer:

A. C. D .E

Explanation:trust me i got it right.

faltersainse [42]3 years ago
3 0

Answer:

a, c, d, e

Explanation:

just answered it.

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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
Please help with questions 9 and 10 !!!!!!!!!!
coldgirl [10]
Is this still needed
6 0
3 years ago
If the amino acin the protiens of 2 organisms are similar, why will their DNA also be similar?
ladessa [460]
If I’m not incorrect, DNA is made from amino acids
6 0
3 years ago
Compare a frogs internal organs to a humans internal organs
kati45 [8]

Answer:

Answer is below

Explanation:

Frogs and humans share the same basic organs. Both have lungs, kidneys, a stomach, a heart, a brain, a liver, a spleen, a small intestine and a large intestine, a pancreas, a gall bladder, a urinary bladder and a ureter. ... On the whole, their organ structure is similar, but frogs have considerably less complex anatomies

8 0
2 years ago
Which of the following is NOT a nitrogenous base?<br> adenine<br> thymine<br> guanine<br> alanine
Kipish [7]

Answer:

Explanation:

Alanine is the correct answer

4 0
3 years ago
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