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3 years ago

If you could make a new model of the Earth, what materials would/could you use and why? (Explain)

Biology

1 answer:

Orlov [11]3 years ago

3 0

Answer:

<h2>you could use a ball of styraphome </h2>

Explanation:

<h2>Because the earth is a circle and it would look similar you would also need to add some color</h2>

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Why is there less oxygen at the surface level than in the depths of the ocean?

Alex73 [517]

I believe the correct answer is C. Nitrogen breaks down the oxygen at high temperatures

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4 years ago

In a parasitic relationship one organism ____ while the other organism ____.

KengaRu [80]

Parasitic relation is the ecological relationship that includes parasites living off the host. In this one species gets benefitted while the other gets harmed.

<h3>What is parasitism?</h3>

Parasitism is a type of ecological relationship in which a parasite lives off the host body internally or externally to get benefitted. The host is in harm but the parasite gets benefitted.

The host provides benefits like protection, shelter, food to the parasite living off its body at its own expense. The host can get harmed by the parasite by getting a disease.

Therefore, one organism gets benefitted while the other is harmed.

Learn more about parasitism here:

brainly.com/question/302890

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2 years ago

The human y chromosome is about 50 million base pairs long. about how many nucleosomes would you expect to find associated with

Gnoma [55]

The human Y chromosome is about 50 million base pairs long. One would expect to find 250,000 nucleosomes associated with this chromosome.

A nucleosome typically contains 200 base pairs. On dividing 50 million by 200, one would get 250,000 which would tell about the number of nucleosomes associated with the human Y chromosome.

A nucleosome is a segment of DNA that is wrapped around a core of proteins. A nucleosomes constitutes the repeating unit of a structure in nucleus known as chromatin (thread-like stained bodies present in nucleus).

The nucleosomes in chromatin appear as 'beads-on-string' when viewed under an electron microscope.

To learn more about Y chromosome here

brainly.com/question/296477

#SPJ4

4 0

1 year ago

Scientists have noticed that the entire DNA molecule has the same width, despite the fact that the four nucleotides are NOT the

const2013 [10]

I don't have access to your model, although I'm sure it's beautiful. Fortunately, this question can be answered without one.

A strand of DNA is a polymer consisting of monomeric nucleotide units. The nucleotides that are found in DNA are distinguished by their nucleobases: adenine (A), thymine (T), guanine (G), and cytosine (C). Each nucleotide in DNA is made up of a single nucleobase, a sugar (deoxyribose), and a phosphate group. These nucleotides form extremely long chains comprising phosphate-sugar linkages (covalent, phosphodiester bonds).

In native, double-stranded DNA, you have of these chains (or strands) arranged side-by-side such that the nucleobases on one chain are faced directly across <em>corresponding nucleobases </em>on the other chain, which enables hydrogen bonding between the bases.

There is a "rule" regarding which bases form hydrogen bonds with one another (Chargaff's rule): adenine with thymine and guanine with cytosine.

What does this have to do with the width of the DNA molecule?

The four nucleotides can be structurally classified into two categories: pyrimidines and purines. For our purposes, we only need to know that pyrimidines are six-membered rings and purines are a fusion of a six- and five-membered ring (basically, purines are pyrimidines attached to a five-membered ring). Thymine and cytosine are pyrimidines, and adenine and guanine are purines.

So, geometrically, adenine and guanine are larger (and, thus, "wider") than thymine and cytosine since adenine and guanine contain an extra ring. But remember our base-pairing rules: In native DNA, adenine (two rings) on one strand pairs up with thymine (one ring) on the other strand, and guanine (two rings) pairs up with cytosine (one ring) on the other strand.

Because there's a 1:1 ratio between A:T and G:C in double-stranded DNA, the DNA molecule consists of complementary base pairs that, in any given composition of, has equivalent widths. Put simply, the A=T pair has the same width as a G≡C pair because both base pairs are between one pyrimidine and one purine.

4 0

3 years ago

2 paragraphs essay on living with dignity

aleksklad [387]

Answer:

Dignity means living a life by which you respect yourselves and even others respect the values and attributes you possess. One of the main attributes that a person with dignity possesses is that he treats other people with the same kind of respect with which he wants to be treated.

Every person whether belonging to any creed, caste or race has the right to be treated with dignity. Giving respect to only certain kind of people due to their cast pr creed is wrong. Dignity is the virtue of life by which a person can live a life full of self-respect.

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3 years ago