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Alex787 [66]
3 years ago
8

which of a-d below is an example of diffusion, osmosis, or neither? Explain your answer in each case. a Water moves from a dilut

e solution in the soil into the cells in a plant's roots. b Saliva flows out of the salivary glands into your mouth. c spot of blue ink dropped into a glass of still water quickly colours all the water blue. d Carbon dioxide goes into a plant's leaves when it is photosynthesising.​
Biology
1 answer:
ExtremeBDS [4]3 years ago
3 0

Answer:

a. osmosis (water must pass through the cell membrane so it is osmosis) b. neither (the saliva is secreted) c. diffusion (the dye doesn't pass through a membrane) d. diffusion"

Explanation:

I'm not sure, but I hope it helps.

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Answer:

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8 0
2 years ago
Read 2 more answers
1. The formula for calculating the surface area of a cube is:
goldfiish [28.3K]

Answer:

The surface area of a cube = 6a2 where a is the length of the side of each edge of the cube. Put another way, since all sides of a cube are equal, a is just the length of one side of a cube. We have 96 = 6a2 → a2 = 16, so that's the area of one face of the cube.

Explanation:

hope this helps

4 0
3 years ago
_______ cause(s) populations to change over time.
vekshin1
The answer is B., Natural Selection.

Weather certainly doesn't change populations, and genes only caused individuals in a population to be slightly ( genetically-wise ) different from the others. It does cause change, but not change in the whole population over time.
Natural disasters don't change the populations over time either. Natural disasters only caused change in their environment, at most.

So, the only answer left is natural selection, and it makes sense too! 
Natural selection is the process where the individuals with better traits suited to survive in that specific environment live on and give those good traits to their offspring.
The individuals with less suited traits to survive will die out, and will not be given an opportunity to reproduce and pass on their less suited traits, so over time, the population will increase of individuals with better suited traits to survive and the individuals with less suited traits will eventually die out, therefore making the entire population change.

Hope I helped you!
3 0
3 years ago
Before using any chemical in the lab, why should one first read the Material Safety Data Sheet (MSDS)?
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So you know what to do and to keep yourself and others protected.
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Gabrielle and her friend William had nine identical long, rectangular containers. Gabrielle added water to the containers, filli
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Explanation:

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