Which is present only in eukaryotic cells?
O Cell membrane
O Chromosomes
O DNA
Nucleus

Answers

Answer 1

the answer is Nucleus DNA


Related Questions

Which formula represents an organic molecule? CuSO₄ H₂O H₂O C₁₁H₂O₁₁ AgNO₃

Answers

Answer:

[tex]C_{11} H_{2} O_{11}[/tex]

Explanation:

This is Xylose-glucose which is an Organic sugar - first isolated from wood ( xylose in greek, which it is named after ), and is a monosaccharide free within the aldehyde group. This is a reducing sugar.

You may know that oxygen, carbon, and hydrogen and base organic elements found in pretty much all organic substances.

Label the partially positive and partially negative ends of water.

Answers

oxygen, the red is negative and hydrogen the white is positive

Which of these best matches a weather condition with its cause?
Question 22 options:

tornado - meeting of cool and warm air masses on land

hurricane - underwater shifting of tectonic plates

thunderstorm - shifting of warm and cool ocean currents

blizzard - freezing of water under oceans

Answers

Answer:

Tornado which means meeting of cool and warm air masses on land

I hope this helps

ANSWER ASAP WILL GIVE BRAINLIEST

Answers

Answer:

D

Explanation:

How do radio telescopes help advance our knowledge of our universe?

Answers

Answer:

Raido telescopes can sense signals way out in space seening things that we havent seen yet therefore futhering our knowlege of the universe

Explanation:

To investigate naturally occurring radio radiation from stars, galaxies, black holes, and other celestial phenomena, we utilize radio telescopes.

What are radio telescopes?

They may also be used to send and receive radio waves that are reflected from the planets in our solar system.

Planets, comets, massive clouds of gas and dust, stars, and galaxies may all be seen with radio telescopes as they point toward the skies. Astronomers can discover information about these objects' composition, structure, and motion by examining the radio waves they emit.

We can learn more about these hot regions, which emit radio waves, with the use of radio telescopes. Our solar system's planets also have radio personalities.

Therefore, radio telescopes display the motion of the gas clouds that whirl around Uranus and Neptune, and the north and south poles of Jupiter emits radio waves.

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which phase of mitosis is occurring in the cell indicated by the arrow

Answers

Anaphase i think i could be wrong bit look it up after you see it

The atomic mass of an element whose atoms consist of elght protons, nine neutrons, and elght electrons is:
25, 17, 16, or 08?​

Answers

Answer:

17

Explanation:

The electrons weigh almost nothing so 8 plus 9 is 17.

The Sodium/Potassium pump (Na+/K+) is an example of

* Facilitated
* Active transport
* Osmosis
*Endocytosis
* Ezocytosis ​

Answers

Answer:

Active transport

Explanation:

Active transport is the energy-requiring process of pumping molecules and ions across membranes against a concentration gradient. The sodium-potassium pump is an active transport pump that exchanges sodium ions for potassium ions

In which process are the products of the reaction glucose and oxygen? photosynthesis cellular respiration

Answers

Photosynthesis. I just got done with the test

Hot spots can also be found along plate boundaries? True or false.​

Answers

Answer:

false

Explanation:

Hot spot volcanoes occur far from plate boundaries. Because the hot spot is caused by mantle plumes that exist below the tectonic plates, as the plates move, the hot spot does not, and may create a chain of volcanoes on the Earth's surface.

A strand of mRNA has the bases guanine-adenine-cytosine. Which amino
acid corresponds to these bases? (Apex)

A. Arg

B. Cys

C. GIn

D. Asp

Answers

A. CGU CGC CGA CGG

B. UGU UGC

C. CAA CAG

D. GAU GAC

Most enzymes
A have no effect on the rate of the chemical reaction
B speed up the chemical reaction
slow the rate of the chemical reaction
D keep the rate of the chemical reaction the same

Answers

Answer: B. Speed up the chemical reaction

Explanation: Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.

HELPPPPPP!
During which phase is the difference between animal and plant cell mitosis the most significant?
prophase
metaphase
anaphase
telophase
interphase

Answers

Answer:

Their main difference is how they form the daughter cells during cytokinesis. During that stage, animal cells form furrow or cleavage that gives way to formation of daughter cells. Due to the existence of the rigid cell wall, plant cells don't form furrows.

Explanation:

Which of the following is the best definition of endocytosis?
Endocytosis moves substances out of the cell and is a type of passive transport.
Endocytosis moves substances into the cell and is a type of passive transport.
Endocytosis moves substances out of the cell and is a type of active transport.
Endocytosis moves substances into the cell and is a type of active transport.

Answers

Answer:

Endocytosis moves substances out of the cell and is a type of active Transport.

Which of the following is an example of an invasive species?

A) Fire ants, which were accidentally brought into the country, harming cows.
B) Grizzly bears that are eating trash in mountainous neighborhood
C) A silverback gorilla that has been brought into a zoo in California

Need help immediately!!!!!!

Answers

Answer:

A

Explanation:

the answer is a, since the ants are harming the cows.

why do our bodies use energy for food​

Answers

Answer:

The human body needs nourishment for energy, to keep warm, and for development and fix. We need numerous supplements consistently so as to remain solid. The three fundamental supplement bunches in food are sugars, protein, and fats. We additionally need minerals and nutrients.

Hoped this helped!

All pets of the body muscles the brain. Heart liver etc need energy to work and that’s when food comes in that we eat when the stomach digests food the carbohydrate sugars and starches in the food breaks down into another type of sugar called glucose



Hope this helps BRAINLEIST is appreciated <3

Which grid will result in the launched negatively charged particle moving upwards?

Answers

Answer:

B

Explanation:

Organisms need _____ to conduct essential life activities.

Answers

Answer: organisms need energy to conduct essential life activities

Explanation:

Answer:EnergyExplanation:

Living organisms must take in *energy* via food, nutrients, or sunlight in order to carry out cellular processes. The transport, synthesis, and breakdown of nutrients and molecules in a cell require the use of energy.

hope this help!!

What can affect the homeostasis ecosystem

Answers

Answer:

THE ANSWER

Explanation:

Like human homeostasis, ecosystem homeostasis is affected by pollution and new and toxic chemicals entering the environment. This can affect important factors like pH levels, salinity, temperature and climate that will affect an ecosystem's homeostasis.

Which of the following is NOT present in all cells?

ribosomes

mitochondria

cell membrane

Answers

I think it’s mitochondria, I don’t think it’s present in prokaryotic cells

why are viruses nonliving

Answers

Answer:

Viruses are not made out of cells, they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Even though they definitely replicate and adapt to their environment, viruses are more like androids than real living organisms.

virus isn't considered living because it doesn't need to consume energy to survive, nor is it able to regulate its own temperature.

A pea plant with wrinkled peas is crossed with a pea plant with smooth peas. All of the offspring produced have wrinkled peas. What can be inferred about the wrinkled pea trait?

A) It is recessive.
B) The smooth and wrinkled traits are codominant.
C) The plant is a hybrid.
D) It is dominant.​

Answers

Answer:

D. It is dominant

Explanation:

A dominant trait will always be the one portrayed as long as it is in the genes. Think of it as an override. It is the reason 2 brown-eyed people can have a blue-eyed child. The Punnett square is always the first thing I think of when it comes to genes.

  |  W   |   W |

w| Ww | Ww |

w| Ww | Ww |

This is what the Punnett Square for your peas would look like, between a homo Dominant plant and a homo Recessive plant.

Answer:

it is dominant

Explanation:

hope this helped! mark me as brainliest :))

10. Movement of blood through the
tissues of the heart

Answers

Answer: Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.

Explanation:

What makes water a polar molecule?
The pH of pure water varies with temperature.
It has oppositely charged ends.
Awater molecule is made of three atoms.
Water's ability to freeze.

Answers

Answer:

It has oppistely charged ends

Answer:

pH of water is seven but if it is an acid of an alkali then you use universal indicator to turn it green

Explanation:

I am learning this in science

A teacher has two cubes of sugar that are both the same size and shape. He adds cube A to a beaker filled with 100 mL of water, and the cube completely dissolves in the water. He then places cube B on a glass dish over a flame. He keeps the dish over the flame until cube B has turned completely black. Once cube B has cooled off, he adds it to another beaker filled with 100 mL of water. Cube B does not dissolve in water.

What does this demonstration indicate?

Answers

Answer:

Burning sugar results in a chemical reaction

Explanation:

Flammability, odor, and density are just a few examples of characteristic properties of a substance. A chemical reaction occurs when molecules interact with one another and the molecules change. For example burning sugar results in a chemical reaction because the properties of cube B changed when it was burned. This change in solubility shows that cube B must be a different substance than cube A because of the chemical reaction that occurred when cube B was burned.

Answer:

Burning sugar results in a chemical reaction

Explanation:did it on study island

two runners were competing to see who could run with a greater average speed. Runner A ran 12 miles in 3 hours. Runner B ran 9 miles in 2 hours. Which runner ran with a greater average speed

Answers

Runner B took about 13.3 mins per mile while Runner A took about 15 mins per mile so runner be ran faster

The figure shows a side view of a mountain that extends below the water's surface. At which point would the pressure be the greatest?

Answers

a because i’m smart n i know everything because yea anyway bye

1) A delta is receiving sediment at a faster rate than it is subsiding. What will happen to the delta?
A. It will grow.
B. It will sink.
C. It will stay the same.
D. It will erode away

Answers

Answer: Option D.

It will erode away.

Explanation:

Delta refer to landform that is formed when the river and sediments empty itself into the oceans, another river or land.

When a Delta is receiving sediments at faster rate than it is subsiding, it will erode away because as the water and sediments continue to empty itself in it, it will accumulate large some, and when it has exceeded the capacity it can hold, it will break into distributaries channels that allows water and sediments to flow and branch off from the mainstream river into the land or another place.

Using your codon chart, what is the amino acid for UAG?

Answers

Answer:

Methionine is the only amino acid specified by just one codon, AUG. The stop codons are UAA, UAG, and UGA. They encode no amino acid.

Which of the following converts food into energy for the cell?

Vaculoe

Cytoplasms


Mitochondria

Cell Membrane

Answers

Mitochondria converts food into energy for the cell.

Mitochondria convert food into energy for the cell. Option 3 is correct.

Mitochondria are often referred to as the "powerhouses" of the cell because their primary function is to generate energy in the form of adenosine triphosphate (ATP) through a process called cellular respiration. This process involves the breakdown of glucose and other organic molecules to produce ATP, which is the main energy currency of the cell.

Inside the mitochondria, there are specialized structures called cristae, which increase the surface area available for cellular respiration. The mitochondria have an outer membrane and an inner membrane, with a space called the intermembrane space in between. The inner membrane contains proteins and enzymes involved in the electron transport chain, a key step in ATP production.

During cellular respiration, glucose is broken down through a series of biochemical reactions, such as glycolysis, the citric acid cycle (also known as the Krebs cycle), and the electron transport chain. These reactions occur in the mitochondria, specifically in the matrix (fluid-filled region) and on the inner mitochondrial membrane. Through these processes, the energy stored in glucose is gradually released, and ATP is synthesized.

The ATP produced by the mitochondria is then used by the cell to power various cellular activities, including metabolism, active transport, muscle contraction, and synthesis of macromolecules. Without functional mitochondria, cells would not be able to efficiently convert food into energy, and vital cellular processes would be impaired.

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