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Amiraneli [1.4K]
3 years ago
12

What type of celestial object is the Sun?

Biology
1 answer:
Alik [6]3 years ago
7 0

Answer:

star????

Explanation:

bro???? the sun is also a star???

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Consider a culture medium on which only gram-positive organisms such as Staphylococcus aureus colonies can grow due to an elevat
kodGreya [7K]

Answer:

C) Selective and differential medium.

Explanation:

Selective Medium:

A media contains specific ingredients which are required to promote the growth of microorganism and inhibit the other microorganisms to grow is called selective medium.

Differential Medium:

A media contains specific ingredients which differentiate the same group organisms or closely related organisms is called differential medium.

NaCl is used in media to promote the growth of Staphylococcus aureus and inhibit the growth of other gram positive and negative bacteria.

A yellow halo color shows the bacterial fermentation of sugar which will distinguish Staphylococcus aureus with other strains.

So, it will be selective and differential medium which will allow to grow Staphylococcus aureus and differentiate with other bacteria.

8 0
3 years ago
The body system responsible for the exchange of gases between the body and environment is the
kherson [118]
It is the respiratory system that allows for the exchange of gasses. 
4 0
4 years ago
Read 2 more answers
In medium-sized stars such as the Sun, nuclear fusion almost always means the fusing______(helium,hydrogen,nitrogen) of nuclei t
Greeley [361]

Nuclear fusion<span> is the process of combining two lighter nuclei into a  single heavy nucleus (part of an atom). This process is also called a nuclear reaction and it releases a large amount of energy. <span>In medium-sized stars such as the Sun, nuclear fusion almost always means the fusing of hydrogen atoms to form helium, but larger stars can produce elements as heavy as iron. </span></span>

8 0
4 years ago
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Proteoglycans are part of the extracellular matrix; they provide structure, viscosity and lubrication, and adhesiveness. They ar
ankoles [38]

Answer:

This question lacks options, options are:  a. beta-D-fructofuranose b. amylose c. uronic acid d. N- acetylglucosamine. The correct answers are c and d.

Explanation:

Glycosaminoglycans are very long, unbranched polysaccharides, made up of repeating units of disaccharides. One of the disaccharides is always an amino sugar, which can be N- acetylglucosamine. The other is uronic acid (it can be iduronic acid or glucuronic acid and is often sulfated at position 2). The amino sugar is usually sulfated and the rest of the sugars have carboxyl groups, which give the structure a negative charge, which attracts a large amount of cations such as sodium. Glycosaminoglycans are often covalently bound to proteins to form proteoglycans. Hyaluronic acid is the only glycosaminoglycan that does not form protein bonds and does not have sulfate groups in its structure.

4 0
3 years ago
The fur coat of California sea lions can be different shades of brown due to genetic variation. Suppose that the frequency of ea
uranmaximum [27]

Answer:

The correct answer would be "The percentage of dark brown sea lions will increase, and the percentage of light brown sea lions will decrease".

Natural selection refers to the natural phenomenon by which organisms which are better adapted to the changing environment tend to survive and reproduce more as compared to the organisms which are less adapted.

As aquatic environment make dark brown sea lions more reproductively successful thus, the offspring of dark brown sea lions would have better chances to reach the reproductive age.

Hence, with the percentage of dark brown sea lions would increase and that of light brown sea lions would decrease.

6 0
4 years ago
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