A container is filled with 0.25 liter of water and 0.75 liter of oil. At first the oil and water appear to mix, but after 10 minutes the oil and water separate as shown. This separation occurs because the
oil -
A. has a greater volume than the water
B. has a greater mass than the water
C. is less soluble than the water
D. is less dense than the water
Hey

Explanation:

Water molecules are polar molecules. That means one end of the molecule has a positive charge and the other end has a negative charge. This allows water molecules to bond together. Oil molecules, on the other hand, are non-polar.

Have you ever dissolved salt in water? How about sugar or coffee grounds? These things mix easily with water because they also have polar molecules. They’re able to bond with the water molecules.

However, non-polar molecules only mix well with other non-polar molecules. This explains why oil doesn’t mix well with water. Their molecules aren’t able to bond.

So what happens when you try to mix oil and water? The water molecules attract each other, and the oil molecules stick together. That causes oil and water to form two separate layers. Water molecules pack closer together, so they sink to the bottom, leaving oil sitting on top of the water.

Have you ever shaken a bottle that contained both oil and water? If so, you know that the two did mix for a short time. That’s because you caused emulsion. You forced the liquids to mix with each other. However, that mixing doesn’t last long! If you look at the bottle again after a minute or so, you’ll see that the water and oil have separated once again.

You can get oil and water to mix together for longer periods. You just have to add an emulsifier. That’s a molecule with one end that has one polar end and one non-polar end. Egg yolks are common emulsifiers. So is soap! It attracts oil on one end and water on the other. That’s what it does when it cleans your hands!

The next time you’re in a restaurant, look for a container of oil and vinegar dressing sitting on the table. Is all the oil at the top? That’s because the vinegar is mixed with water. Give it a good shake and watch what happens!

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls

i believe the correct answer is the virus gets an envelope that contains host molecules when it leaves the host cell.

explanation:

during the bidding/release stage of a virus, it encapsulates itself with part of the membrane of the host cells in this case the cells of the monkey and is the reason as to why the scientist found the genetic material of the monkey on the viral cell surface.

further explanation

to understand this answer, we have to know the cycle a virus undergoes to replicate. a virus is basically a bunch of genetic material enclosed in a capsule and lacks any machinery or organelles to ensure their survival so they must enter a host cell in order to get the environment needed to survive. some viruses enter and lyse(destroy) the host cell after they have replicated and undergo the lytic cycle while some enter and leave the cell intact after replicating and these undergo a lysogenic cycle. to enter the cell, they undergo the first process called attachment by binding to specific receptors and co-receptors on the surface of the host cell. after attaching to the cell, they start the second phase called penetration where virus enters or is engulfed whole by the host cell through a process called endocytosis. it is the same process that a cell takes up materials it needs or pathogens around it. uncoating of the virus then happens after the virus has been engulfed and is the third stage. the virus then undergoes releasing of its genetic material in the host's matrix.   the materials then enter the nucleus and undergo biosynthesis by adding themselves in strands of rna being translated and then copies of the virus are produced in addition to the host genetic material. the material/newly formed viral material then undergoes assembly inside the host cell and form a capsule around them. the virus undergoes the last release/budding stage by binding to the host membrane and pushing outwards. in doing so when they tear away from the host membrane, they pick up the genetic material from the membrane of the host cell to form their envelope.

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level: high school