Which best matches the description with the genetic material?

Answers

Answer 1

Answer: DNA is located in the nucleus

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A chemical has been found to harm the same components in both prokaryotic and eukaryotic cells. Which components are those? A. DNA, cell membrane, cytoplasm, and ribosomes B. DNA, cell membrane, ribosomes, and membrane-bound organelles C. DNA, cytoplasm, ribosomes, and nucleus D. DNA, cell membrane, cytoplasm, and membrane-bound organelles
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Equilibrium is best defined as a state of what?

3. Draw a pH scale and label water, hydrochloric acid, and sodium hydroxide in their general areas on the scale.

Answers

Answer:

The pH scale has been drawn below.

Explanation:

pH sacle may be defined as the scale that determines the pH of acids and bases. 0 represent the neutral compounds. The compounds that pH less than 7 acts as acid whereas the compounds that have pH greater than 7 acts as base.

Here, water is neutral, Hydrochloric acid (HCl) is acidic and sodium hydroxide (NaOH) acts as base.

Water, hydrochloric acid, and sodium hydroxide can be placed on the pH scale as follows:

Water: Water is considered neutral and has a pH of 7. It falls in the middle of the pH scale.

Hydrochloric acid: Hydrochloric acid is a strong acid and is highly acidic. It has a pH below 7. The exact pH value of hydrochloric acid may vary depending on its concentration, but it typically falls within the range of 0 to 2.

Sodium hydroxide: Sodium hydroxide is a strong base and is highly alkaline. It has a pH above 7. Again, the specific pH value of sodium hydroxide can vary based on its concentration, but it typically falls within the range of 12 to 14.

So, on the pH scale, water would be placed at pH 7 (neutral), hydrochloric acid would be placed below pH 7 (acidic), and sodium hydroxide would be placed above pH 7 (alkaline).

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A microbe is invisible to the human eye, how small must an object be to be invisible?

Answers

Answer:

A normal eye with regular vision can see objects about 0.1 millimeters, less than 0.1 mm objects are invisible.to the human eye.

Explanation:

Which best describes the author’s viewpoint toward the actual Rosetta Stone in "The Rosetta Stone”?It is a fascinating artifact that can help people better understand the past.
It is a historical artifact that scholars spent too much time trying to understand.
It is something that is interesting to learn about, but it is not historically significant.
It is a piece of 5 that has an exciting and entertaining story.

Answers

The right option is; It is a fascinating artifact that can help people better understand the past.

Rosetta Stone is an ancient Egyptian stone discovered by a Frenchman called Bouchard in August 1799. The stone has inscriptions written in two languages (Egyptian and Greek) and in three writing systems (hieroglyphics, demotic script and the Greek alphabet). The inscriptions on the stone were written by a group of priests in Egypt to honour the Egyptian pharaoh. The inscription contains all the good things that the Egyptian pharaoh did for the priests and the people during his reign.

Answer: A

Explanation:

Which is the best definition of a prokaryotic cell? It has a cell wall but lacks a well–defined nucleus and organelles, and its cytoplasm doesn't have much structure.It contains a membrane–bound nucleus and organelles, and its organelles have specialized duties.
It contains a membrane–bound nucleus, a large central vacuole, a cell wall, a cell membrane, and chloroplasts.

Answers

Options:
it has a cell wall but lacks a well–defined nucleus and organelles, and its cytoplasm doesn't havemuch structure. - this is the correct one!

It contains a membrane–bound nucleus and organelles, and its organelles have specialized duties.
no!, this is false! prokaryotes don't have membrane-bound nucleus!

It contains a membrane–bound nucleus, a large central vacuole, a cell wall, a cell membrane, and chloroplasts.- no!, this is false! prokaryotes don't have membrane-bound nucleus!

so, for this we only needed to know that prokaryotes DON'T have a membrane-bound nucleus (and this is also perhaps their most important property)

1. An advantage of electron microscopes compared to light microscopes is that electron microscopes A. are inexpensive and commonly used in most biology laboratories
B. allow you to view living cells, while light microscopes do not
C. have higher resolution that allows you to view smaller specimens
D. allow you to view the true colors of the specimens being viewed

2. What would be the best microscope to view living single-celled organisms in a sample of pond water?

A. Transmission electron microscope
B. Scanning electron microscope
C. Compound light microscope
D. Dissecting microscope

Answers

An advantage of electron microscopes compared to light microscopes is that electron microscopes have higher resolution that allows you to view smaller specimens

The best microscope to view living single-celled organisms in a sample of pond water is called the Compound light microscope

For better understanding, we have to understand what electron microscope and compound light microscope is.

The Compound Light Microscope is one of the most commonly used microscope. It is said to have a Magnifying intensity that ranges from from 40x up to 1,000x. It is often used to observe specimens that can either be dead or alive. It allows the use of dye on the slide to view tissue samples, blood, microorganisms in pond water, microscopic cells and others. It often allow light to pass through the said specimen and includes the use of two lenses to form an image.

Electron Microscope is simply known as a type of microscope that involves the use of a beam of electrons instead of the use of light to enlarge objects. It can enlarge up to 500,000 times it's actual size. It has much higher resolving power that is higher clarity than light microscopes due to the fact that it uses electrons instead of light.

From the above, we can say that An advantage of electron microscopes compared to light microscopes is that electron microscopes have higher resolution that allows you to view smaller specimens and

The best microscope to view living single-celled organisms in a sample of pond water is called the Compound light microscope answers are true

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C. have higher resolution that allows you to view smaller specimens

C. Compound light microscope

I just took this test these are both right.

What does semi-permeable mean in a relation to cell membranes?

Answers

Answer:

Cell membrane is also called as semi permeable membrane.

Explanation:

It allows some chemical compounds to pass through and stops the other from their entry.

Other Questions

After Darwin proposed his ideas about natural selection, scientists began trying to test his ideas in a variety of ways. Which of the following best explains why it was important that scientists did this? (2 points)They had to see if this new idea fit the evidence they found in their experiments. They knew they would be left behind by the scientific community if they did not. They needed to discredit Darwin as quickly as possible with contradictory evidence. They were compelled to prove that this new idea was correct and Lamarck was wrong.

Name two circumstances which can result in genetic drift having a significant impact on a population. Explain each.

What would happen if the aerobic respiration process broke down in a tropical rain forest?

How does the small size of a spore help its function? a) Spores can travel far. b) Spores provide structure. c) Spores fit into a cell. d) Spores are specialized.