All categories

3 years ago

HELP

Biology

1 answer:

allochka39001 [22]3 years ago

6 0

Answer:

A homogenous solution is uniform throughout. Meaning that it has the same composition/looks the same through out the solution. It can be called a homogenous solution or mixture. The other type of solution is a heterogenous solution. This solution is is visibly different looking, so it does not look the exact same throughout.

eg:

Milk is an example of a homogenous solution. It looks the same all throughout but when you look at it under a microscope you can then see it is actually consisted of different things.

Sand in a cup of water is a heterogenous solution. You are able to visibly see the different compounds that make up the solution.

You might be interested in

Which of the following best describe gas particles?

timama [110]

Answer:

a, b, d (see below)

Explanation:

So, looking at the 3 states of matter:

Solid - holds a shape and is made up of particles that vibrate in place (because particles are always moving no matter what)

Liquid - holds shape of its container and has particles with some space in between them that allow them to flow

Gas - holds shape of its container and has particles with huge gaps of space between them that are always, constantly moving and zooming around

Refer to the image below for a better visual understanding.

So, now, looking at the answer choices:

a) moving randomly

Yes. They are—they're speeding around super fast all the time.

Every time heat is added to something, the particles start loosening up and moving. A lot.

So when you add heat to a solid, it starts loosening up and moving around until it becomes flowy enough to be a liquid. Then, if more heat is added, the particles moving faster and loosen up even more until they're a gas.

Imagine doing that one more time, and you'll have plasma. As you may have guessed it, plasma moves super fast

b) collide into each other

Yes. Because they're moving so fast and uncontrollably all the time, they're bound to have rammed into one another a few or more times.

Imagine bumper cars at a carnival, except the speed of each car is sooo fast that you could be on a highway. You're probably going to hit someone, which is why bumper cars are not that fast in reality. For safety reasons.

c) move slow

No. Since we know that they're always zooming around (refer to my bumper car example above, in bold), they obviously can't be slow.

d) high kinetic energy

Yes. Anything moving (a.k.a. in motion) has kinetic energy. If gases zoom super fast 24/7, they will have high kinetic energy.

Having high kinetic energy means that the something is moving really fast or a lot. In this case, gases are both.

e) moving orderly

No. They're moving everywhere and really fast, so they have no control over how they move because of how fast they are.

(refer to my bumper car example in answer b, in bold)

7 0

2 years ago

Which statements describe seismic waves? Check all that apply.

boyakko [2]

E, D, and C I believe. It has been a while since I took this class.

6 0

3 years ago

Read 2 more answers

Which epithelial tissue is shaped like a column

ivanzaharov [21]

Answer:

Columnar epithelial cells are elongated and column-shaped and have a height of at least four times their width. Their nuclei are elongated and are usually located near the base of the cells. Columnar epithelium forms the lining of the stomach and intestines

Explanation:

Epithelium - Wikipedia

Hope this helps : )

3 0

3 years ago

Read 2 more answers

Why mosquito is called vector for malaria?

vovangra [49]

Only certain species ofmosquitoes of the Anopheles genus—and only females of those species—can transmitmalaria. Malaria is caused by a one-celled parasite called a Plasmodium. Female Anopheles mosquitoespick up the parasite from infected people when they bite to obtain blood needed to nurture their eggs.

8 0

2 years ago

Each position of a codon can be occupied by one of four nucleotides. What is the minimum number of nucleotides per codon necessa

USPshnik [31]

Answer:

The minimum number of nucleotides per codon necessary to specify all 20 amino acids that are found in proteins is 3

Explanation:

There are four nucleic acids in the RNA, adenine uracil, guanine, cytosine. Each of them combines in groups of three to give the different amino acids. In total, there are 64 different combinations of nucleic acids that codify the 20 amino acids that we need for our vital functions.

4 0

3 years ago