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Kitty [74]
3 years ago
7

scientists use tissue cultures to study possible medicines that can be used to treat cancer patient what is one benefit of this

procedure ​
Biology
1 answer:
guapka [62]3 years ago
3 0

Answer:patients do not receive harmful or ineffective medication.

Explanation:

Got it off quizlet

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The water absorption rate of a plant's roots is greatly increased by
Genrish500 [490]
The answer is: Both association with mycorrhizal fungi and presence of root hairs. 
7 0
2 years ago
When a potassium ion (K) moves from the soil into the vacuole of a cell on the surface of a root, it must pass through several c
Sindrei [870]

Answer:

C) primary cell wall --> plasma membrane --> cytoplasm --> tonoplast

Explanation:

When a potassium ion moves from the ground into a vacuole of a plant cell, it must pass through the different structures that are part of it.

First, the outermost layer of the cell is the cell wall. Plant cells may have a primary and a secondary wall, but the latter is not always present. The primary wall is always located outwards (and in the case of having a secondary wall, it will be located between the primary wall and the plasma membrane).

Then, inside the cell wall, we will find the plasma membrane (also called plasmalemma).

When crossing the membrane, the ion will be in the cytoplasm of the cell and will be directed towards the vacuole, which is surrounded by its membrane called tonoplast. The vacuole is an organelle that has no definite shape, although it is always surrounded by the tonoplast, and it contains different substances such as water and enzymes.

7 0
3 years ago
Do the six kingdoms each have a purpose in the real world today like it did back then.
Nuetrik [128]
I’m assuming the six kingdoms of life, but yes they do have a very large purpose for providing characteristics to bacteria, animals, fungi, humans, etc.
3 0
3 years ago
The lowest layer of the atmosphere, where weather occurs and where we live, is called the ________________.
Paha777 [63]

Answer:

Troposphere

Explanation:

The troposphere is the lowest layer of the atmosphere.

3 0
3 years ago
Play tectonic theory states that the continents move around on the earths crust drifting in response to forces within the earths
Over [174]
These or some hardcore questions lol where is this from ?
6 0
2 years ago
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