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g100num [7]
3 years ago
15

1. Describe the similarities and differences between the cheek cell wet mount and dental plaque wet mount.

Biology
1 answer:
Semenov [28]3 years ago
5 0

Answer:

Cells from the cheek are a type of epithelial cell, similar to skin. ... They can be seen faintly even at 40x (scanning power), but the most dramatic images are at 400x where the nucleus is clearly visible as a dark spot in the center of the cell.

Explanation:

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One thing all cells have in common is an ability to colonize any environment on earth.
miskamm [114]

<u>False</u>,

All cells don't have in common is an ability to colonize any environment on earth.

Cells- A cell's cytoplasm and nucleus are enclosed in a membrane, making it the smallest structural and functional component of an organism.

Environment- The natural habitat or natural world includes all living and non-living things that arise spontaneously, or in this case, without the use of artificial methods.

Living Object- A living thing is any creature or life form that demonstrates or possesses the characteristics of life or being alive.

Non-living things are inanimate items or forces that have the power to affect, shape, modify, and have an impact on the life of a living creature.

To know more about Environment, click on the below link,

brainly.com/question/1748429

#SPJ4

3 0
2 years ago
1. Excretion is the process of (1 point)
ycow [4]
Q1. The answer is removing metabolic wastes from the body.
Excretion is the process through which metabolic wastes are removed from the body. Skin, lungs, and greatly kidney, which are the part of the excretory system, are responsible for excretion of metabolic waste in vertebrates. Invertebrates have special systems (insects, for example, have Malpighian tubules) or use skin to excrete metabolic wastes while single-celled organisms use the whole surface of the cell.

Q2. The answer is some animals live in dry or salty environments.
Kidneys are important organs in maintaining water balance. Some animals that live in dry and salty environments must preserve water in order to maintain homeostasis. They drink and eat food with more salt in it. If they lose that precious water in such conditions, the amount of different salts in the organism will increase and it will affect a normal functioning of the organism.

Q3. The answer is simple diffusion across the skin. 
Ammonia is very toxic substance and a lot of water is needed for its neutralisation and excretion. Therefore, animals that live in water excrete ammonia directly in the water. Many freshwater invertebrates eliminate ammonia through skin. In animals that do not live in the water, kidneys and liver help conversion of ammonia into urea which is then excreted.,

Q4. They both actively pump salt across their gills. 
Both saltwater and freshwater fishes use gills to eliminate nitrogenous wastes while kidneys have a little role in the elimination of this kind of the waste. Salt that is lost is replaced by active transport of salt ions into the body by the gills.

Q5. The answer is They both convert nitrogenous wastes to uric acid. 
A garden spider and a sparrow are terrestrial organisms. They do not live in the water and do not excrete metabolic wastes in the water. It is known that ammonia is toxic nitrogenous substance and a lot of water is needed for its excretion. For water organisms this is not a problem, they are surrounded by water, but terrestrial organisms, such as the garden spider and the sparrow, have no such amount of water in the environment, so their kidneys and liver must convert ammonia into urine which can then easily be excreted.
8 0
3 years ago
What conclusions can be drawn about the existence of carbon-12, carbon-13, and carbon-14? A) These are forms of carbon and they
Kryger [21]

Answer:

C.

Explanation:

All these carbon atoms are isotopes: they have the same amount of protons (in this case, 6 because carbon always has 6 protons) and the same amount of electrons (6 because the carbons given have a neutral charge).

Therefore, the only thing we are changing is the atomic mass and the amount of neutrons present in each isotope.

In Carbon-12, there are 6 protons, 6 neutrons, and 6 electrons.

In Carbon-13, there are 6 protons, 7 neutrons, and 6 electrons.

In Carbon-14, there are 6 protons, 8 neutrons, and 6 electrons.

5 0
3 years ago
Read 2 more answers
An element with 5 protons, 6 neutrons, and 8 electros has an atomic number of
Tcecarenko [31]

Answer:

5

Explanation:

The number of protons is the same as the atomic number

6 0
2 years ago
If plants were removed from an area, like a coral reef, which statement below best describes the outcome
Lubov Fominskaja [6]

Answer:

Coral polyps, which are animals, and zooxanthellae, the plant cells that live within them, have a mutualistic relationship. Coral polyps produce carbon dioxide and water as byproducts of cellular respiration. The zooxanthellae cells use carbon dioxide and water to carry out photosynthesis.

Explanation:

4 0
2 years ago
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