BIOLOGY HIGH SCHOOL

A student is given a small amount of unknown tan-colored liquid substance. This unknown liquid is placed into a glass of water and mixed. Despite mixing, the tan liquid remains separated from the water and collects as a large droplet at the top. Which of the macromolecule groups is this liquid MOST likely to be a member of?nucleic acids
proteins
lipids
carbohydrates

Answers

Answer 1
Answer: I think the correct answer from the choices listed above is the third option. The liquid, most likely would belong the group of lipids since this substance is immiscible with water or does not mic with water. Hope this answers the question. Have a nice day.
Answer 2
Answer: The fact that they do not dissolve shows that it is a lipid. This is further supported by the fact that the liquid remains collect to form a giant droplet. This occurs as oil/lipids are hydrophobic and thus tend to collect in clumps. 

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Which of the following statements is true?Weathering and erosion are the same process.
Coarse, infertile soil is usually found near the base of a mountain.
Rocks formed at low temperatures weather more quickly than rocks formed at high temperatures.
Weathering is the movement of sediment from one location to another.

Answers

Correct answer: B). Coarse, infertile soil is usually found near the base of a mountain.

The course, infertile soil is normally found near the base of the mountains. It provides stable bases for the high mountain. It helps to keep the ground firm and it would take a longer time to erode and evolve. These soil are a type of loamy soil. The nature of erosion can affect the composition and structure of these type of soil. Rest all other options are false.

Hence, the correct answer would be option B
the true statement is that coarse, fertile soil is found near the base of a mountain

(PLEASE HELP IT IS DUE TODAY)1. Which statement best describes stem cells?

A. Stem cells are commonly found in the brain of adults.

B. Stem cells are flowing through our veins delivering oxygen to the other cells of your
body.

C. Stem cells are only found in prokaryotes.

D. Stem cells are unspecialized cells that have the potential to differentiate into a wide
variety of cell types.

Answers

Answer:

the answer to that one is D

Answer:

It might be A

Explanation:

It might be A because stem cells are usually found in brain, blood, bone marrow, muscle, skin, heart, and liver tissues.

The MAIN difference between terrestrial planets and gas giants isA) the way they were formed.
B) the shape of their orbits.
C) the level of their density.
D) the plane in which they lie.

Answers

Answer:

Terrestrial planets are:

  • inner planets
  • smaller in size
  • rocky in nature and hence more dense
  • have a few or no moon(s).
  • In our solar system, Earth, Mars (and others) are terrestrial planets

Gas giants are:

  • outer planets
  • larger in size
  • less dense,
  • have multiple moons.
  • In our solar system, Jupiter and Saturn are gas giants

Answer:

the level of their density

Explanation:

What are some reasons that humans need to be concerned with our environment? explain.

Answers

we need to be concerned with our enviroment beacuse we need to  take care  of were we live  like picking up trash and not havng that much polution and to plant more trees because they help  us breath  by giving us oxygen 
because we need to be able to stay on the earth long
, and if we don;t take care of the earth what will the animals and us be like.

The speder is in which class

Answers

The spider is in the class:-  Arachnid
Ok than the class of the spider is Arachnid

You see a television commercial for a new antibiotic. The ad includes someone claiming that the antibiotic helped cure them of the flu. What are two reasons why you might question this claim?? EXPLAIN.

Answers

the flu cannot be "Cured" but can oly be surpressed so it in inactive. only the body white blood cells can kill and fully remove the virus. 
this is questiponed because it is true that it is limited to only one person, but this person may not of even had the flue to begin with. the the second question is which flue did the person have. swine flu is deadly and cannot be removed with antibodies or antibiotics. which is a pain because this flue kills the body. 
the second things that is questioned is, is the antibiotic stable enough for everyone?
everyone has a different immune structured in different ways. some antibiotics will not help certain people because of the lack of lipids and enzymes in the hosts blood. this can be fatal because the body has a natural buffer in the blood that the antibiotic can easily damage and kill the host. 
The sample is limited to one person so it doesn't provide a wide view of the product.
There is no expert opinion so it is not as believable.
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The pH of a solution is determined to be 1.5. The solution isacidic. basic. neutral. a salt.
DNA from one species differs from the DNA of another species in its a)base ratios b)sugars c)phosphate groups d)all of the above
How can two molecules with the same chemical formula react differently?