Which of these is not a feature of
prokaryotic cells?

A. ribosome
B. cytoplasm
C. cell membrane
D. nucleus

Answers

Answer 1

Answer:

D. Nucleus

Explanation:


Related Questions

why not test for pathogens like salmonella directly rather than use an indicator organism such as a coliform?

Answers

Indicator organisms are organisms that are utilized to detect the presence of another organisms that cannot be easily identified.

We do not test for pathogens like salmonella directly but use an indicator organism like coliform because these pathogens are not easily isolated and they are much harder to identify.

Pathogens like salmonella are not tested for directly because they are much lower in numbers when found in wastes or waterbodies and to identify them directly is expensive.

Also testing directly for these micro-organisms is very expensive and non-viable. So it is better to use indicator organisms to detect their presence.

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What are organelles.

Answers

Organelles are specialized structures that perform various jobs inside cells.

Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive.

Describe the structural make-up of a gene?

Answers

Answer:

Structure of gene:

The chemical structure of a gene comprises nucleotides. A part of DNA- genes are made up of A, T, G and C nucleotides

Explanation:


1. Which of the following describes a heterotroph?
A.Heterotrophs conduct photosynthesis.
B.Heterotrophs cannot create their own food.
C.Heterotrophs can create their own food.
D.Heterotrophs get their energy directly from the sun.

Answers

Answer:

B. Heterotrophs cannot create their own food

Explanation:

Autotrophs, on the other hand, can.

Since transport of materials in and out of the cell can only happen at the cells surface, what problem does this pose for larger cells

Answers

Answer:

More surface area being taken up meaning in less cells getting in or out.

what determines how closely related 2 species are?

Answers

Answer:

Before: (Darwin did) Physical features and behavior

Now:

DNA Testing

Explanation:

Similarities are often easy to see when one looks at two organisms that evolved from a common ancestor, and until recently, looking at physical features and behavior was the only way to determine how closely related two organisms are. However, now scientists can also analyze DNA to discover how closely organisms are related. Every living creature has DNA, which has a lot of inherited information about how the body builds itself. Scientists can compare the DNA of two organisms; the more similar the DNA, the more closely related the organisms. This method can also help when looks are deceptive. One example of looks being deceptive is: The bat and the crow both have wings, and the squirrel does not. From this, one may think that bats and crows are more closely related than bats and squirrels, while the opposite is indeed the case.

how do scientists know that mountains were once at the bottom of the ocean

Answers

Answer:

Its more then likely that they do and they were the ones that found that out. but im not 100% sure

The microscopic filtering units found in the kidneys that are responsible for urine formation are called

Answers

Answer:

nephrons

Explanation:

there are about one million nephrons in one kidney which are responsible for urine formation

The microscopic filtering units found in the kidneys that are responsible for urine formation are called nephrons, so here the correct option is option a.

Throughout the nephron, various processes such as filtration, reabsorption, and secretion occur to produce urine. Filtration occurs at the glomerulus, where water and small solutes are forced out of the blood into the Bowman's capsule. Reabsorption involves the selective reabsorption of water, ions, and nutrients from the filtrate back into the bloodstream. Secretion involves the active transport of waste products, excess ions, and toxins from the bloodstream into the filtrate. So here, the correct option is option a.

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complete question is below

The microscopic filtering units found in the kidneys that are responsible for urine formation are called

A. nephrons

B. kidney

18. In pea plants, the seed coat can be green or white. Green is dominant over white.
Construct your own Punnett square that involves one white parent in which 50% of the
offspring can be predicted to have green seed coats.

Answers

Aa * aa

⇒ 50% Aa (Green)

⇒ 50% aa (White)

How was Dr. Martin Luther King , Jr. , an important force in creating a more just world ?
Evidence and reasoning plz

Answers

Martin Luther King, Jr. worked hard to bring greater equality to America and ensure civil rights for all people, regardless of race.

66
Chapter 6 Discussion
nts
This discussion will require you to do an experiment with a friend or a member of your family. This experiment is
suggested by Stanley Coren and his associates to demonstrate Weber's law (Coren, S., Ward, L., & Enns, J.T. (2003)
Sensation and perception (6th edition) New York: Wiley.)
et
You need three quarters, two envelopes, and a pair of shoes (preferrably heavier than a tennis shoe).
1. Place one quarter in one envelope and the remaining two quarters in the other
2. Have the person lift each envelope and tell you which is heavier
3. Have the person go away or turn around, and then place each of the envelopes into separate shoes
4. Have the person lift each shoe and tell you which is heavier
urces
. What were your results?
• Why?
• What was at work here?
• Describe how this principle might impact other areas of our everyday lives.
• Give at least three specific examples.
Respond to at least one other classmate.

Answers

Deeeeeeeeeee e e e e e e e e e e. E e we. De. E e e e ee

This experiment shows that people often associate weight with quality. That is, the heavier it is, the better it is. This experiment proves that this thinking is illogical.

How may this experiment help in business?

Because man is a rational being who is not consistently logical or rational, it  may help to ensure that ones product of good quality and heavier than that of the opposition.

Recall that people often make decisions that are irrational as long as they are happy with it.

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What is a isotonic solution? How does it affect a red blood cell?
What is a hypertonic solution? How does it affect a red blood cell?
What is a hypotonic solution? How does it affect a red blood cell?
Answer plz!

Answers

Answer: If you place an animal or a plant cell in a hypertonic solution, the cell shrinks

Explanation: because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ). ... A single animal cell ( like a red blood cell) placed in a hypotonic solution will fill up with water and then burst.


An isotonic solution is one wherein the solute concentration across the semipermeable membrane is the same resulting in an equilibrium state.

They do not shrink or swell in an isotonic saline solution, i.e., 0.9% w/v solution of sodium chloride

Hypertonic solution: A solution that contains more dissolved particles (such as salt and other electrolytes) than is found in normal cells and blood.

Now, let’s suppose RBCs are placed in a solution with a sodium chloride concentration of 2% w/v. The sodium chloride concentration of 2% w/v is greater than the RBC’s sodium content and hence the solution is hypertonic. This will result in shrinkage of the RBCs known as crenation

When a solution has a lower solute concentration than the solution present across the semipermeable membrane, it is known as a hypotonic solution. As a result, when a cell is placed in a hypotonic solution, an osmotic pressure gradient forces the solvent to move into the cell in order to attain equal solute

In another situation, let’s suppose RBCs are placed in a solution with a sodium chloride concentration of 0.1 % w/v. The sodium chloride concentration of 0.1% w/v is less than the RBC’s sodium content and hence hypotonic saline. This will result in swelling and eventually bursting of the RBCs which will result in the release of hemoglobin. This is known as hemolysis which is a very dangerous situation.

ANSWER THIS ASAP!!! Describe the structure of a neuron. Include the cell body, dendrites, and axon in your description. How does the structure of a neuron help it carry out its function efficiently?

Answers

Answer:

Sensory neurons. Sensory neurons help you: ...

Motor neurons. Motor neurons play a role in movement, including voluntary and involuntary movements. ...

Interneurons.

Explanation:

identify the three types of symbiotic relationships and give an example of each in your answer be sure to describe the relationship

Answers

Answer:

mutualism, commensalism, and parasitism

Explanation:

mutualism, commensalism, and parasitism

The autoimmune disease that results from the body attacking tissues such as the heart or lungs is called

Answers

Answer:

RA

Explanation:

I have no idea what I'm doing​

Answers

True very much true

what is the overall purpose of cellular respiration?

Answers

Answer:

The overall purpose is to break down sugar in the presence of oxygen to release in the form of ATP.

Explanation:

Cellular respiration is the process that occurs in the mitochondria of organisms (animals, and plants). this process releases carbon dioxide  and water as waste products

All the offspring of a cross between a black-eyed mendelian and an orange-eyed mendelian have black eyes. This means that the allele for black eyes is ________ the allele for orange eyes.

Answers

I'm not sure what exactly the blank is but I do know it should be something like Dominant. Try putting "dominant over" in the blank. I hope I could help!

4. Arrange Write the following steps in the order in which they occur during glycolysis

A six-carbon molecule is broken down into two three-carbon molecules.

Two NADP molecules are converted into two NADH molecules.

Two phosphate groups from two ATP molecules are joined to glucose.

Two three-carbon molecules are converted into two Folecules of pyruvate as four
molecules of ATP are produced.

Answers

The correct order of glycolysis reactions is:

Two phosphate groups from two ATP molecules are joined to glucose.Two NADP molecules are converted into two NADH molecules.A six-carbon molecule is broken down into two three-carbon molecules.Two three-carbon molecules are converted into two molecules of pyruvate as four  molecules of ATP are produced.

During glycolysis, the glucose molecule is converted to Glucose-6-phosphate as a result of phosphorylation. The phosphate group from ATP is joined to the glucose molecule by an enzyme known as hexokinase.

The glucose-6-phosphate then undergoes isomerization to become fructose-6-phosphate which is then phosphorylated again by the hexokinase enzyme to become fructose-1,6-biphosphate.

An aldolase enzyme converts fructose-1,6-biphosphate to one molecule of glyceraldehyde-3-phosphate and one molecule of dihydroxyacetone phosphate. The latter is then converted to another molecule of glyceraldehyde-3-phosphate.

A dehydrogenase enzyme converts glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate with NADH being generated from the reduction of NAD+.

A kinase enzyme then converts 1,3-bisphosphoglycerate to 3-phosphoglycerate with ATP being generated from ADP. A mutase enzyme quickly converts the 3-phosphoglycerate to 2-phosphoglycerate while an enolase enzyme converts the latter to phosphoenolpyruvate.

Finally, a pyruvate kinase enzyme converts phosphoenolpyruvate to pyruvate with another ATP being generated.

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What might cause birds in Population A to immigrate to the island?​

Answers

Answer:

The change in the climate would have made the birds migrate

Explanation:

Which layers would you expect to see a greatere population of decompsers.

Answers

Answer:

Explanation:

The bottom

Carbon cycle pls help me

Answers

carbon dioxide Coronavirus

Crime-scene work often involves obtaining a DNA sample from a drop of blood to help identify persons who may have been involved. Frequently, the size of the DNA sample is extremely small, too small for easy analysis. Which of the following laboratory procedures could criminologists use to amplify the amount of DNA present?

A: Cloning and gel electrophoresis
B: Cloning and polymerase chain reaction (PCR)
C: DNA splicing and polymerase chain reaction (PCR)
D: Vector amplification and DNA splicing

Answers

Amplification of DNA is a very useful tool in the study of the human genome. DNA amplification ensures the production of multiple copies of the needed segment.

Criminologists can use Cloning and PCR to amplify the amount of DNA present...

Cloning involves creating identical copies of a particular DNA segment in study. Then amplification of the DNA using polymerase chain reaction will aid in amplifying and producing thousands of these copies of short targeted segments in minutes. This tool is very useful in ensuring the multiplication of that particular targeted sequence for analysis.

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which is not an abiotic factor that could affect a population?

Answers

Answer:

it is not the abiotic power my beautiful kind sir

Explanation:

This is the start of a muscle and is the non moving end.

Answers

Answer:

What questions should you ask when analyzing how a character develops a theme? Check all that apply.

How does the character react to conflict?

How is the character changed by conflict?

When does the climax occur in a play?

Is the theme relatable to people around the world?

What lessons does the character learn based on the resolution of the conflict?

Explanation:

What questions should you ask when analyzing how a character develops a theme? Check all that apply.

How does the character react to conflict?

How is the character changed by conflict?

When does the climax occur in a play?

Is the theme relatable to people around the world?

What lessons does the character learn based on the resolution of the conflict?

The moveable end of the muscle that attaches to the bone being pulled is called the muscle's insertion, and the end of the muscle attached to a fixed (stabilized) bone is called the origin.

what should you do if you are not sure that an organism is a plant

Answers

Answer:

An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and maintain homeostasis.

Explanation:

An organism is a plant.

If you are not sure that an organism is a plant, you should observe and research the characteristics and behaviors of the organism to determine its classification.

What is the five kingdom classification?

The five kingdom classification is a system of classifying living organisms into five major categories based on their fundamental characteristics. The five kingdoms are:

Monera: This kingdom includes single-celled prokaryotic organisms, such as bacteria.Protista: This kingdom includes single-celled eukaryotic organisms, such as algae and protozoa.Fungi: This kingdom includes multicellular, heterotrophic organisms, such as mushrooms and yeasts.Plantae: This kingdom includes multicellular, autotrophic organisms that are characterized by their ability to photosynthesize, such as trees, flowers, and grasses.Animalia: This kingdom includes multicellular, heterotrophic organisms that are characterized by their ability to move and sense their environment, such as animals and humans.

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Arteries have high blood pressure
and are fairly deep in your body.
What is the function of the
arteries?
A
delivering OXYGEN-RICH blood to the body
В.
delivering OXYGEN-POOR blood back to
the heart
Using Alternative
Server
All Rights Reserved.

Answers

Answer:

A. Delivering Oxygen-rich blood to the body.

Explanation:

I hope this helps!

Answer:

a. delivering oxygen - rich blood to the body

Explanation:

Arteries are the blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body.

how can you relate the heat and phase changes into a real-life situation?​

Answers

Putting a liquid in a freezer will turn it into a solid/ice. Boiling water will turn the water into gas. Melting an ice cube will turn into liquid because of the heat.

Active transport requires energy from the cell. A True
B False​

Answers

Answer:

A TRUE

Explanation:

Answer:

A

Explanation:

active transports moves things against the gradient so it requires energy

passive transport diffuses with the gradient so it doesn't require energy

Which researcher theorized that hypnosis comes about as a form of roleplay between hypnotist and subject? A. Ernest Hilgard B. Theodore Sarbin C. Theodore Barber D. Milton Erickson Please select the best answer from the choices provided A B C D

Answers

Answer:

Hey, your answer should be D

Explanation:

Good luck friends

The researcher who theorized that hypnosis comes about as a form of roleplay between hypnotist and subject is Milton Erickson, who is in Option D. Milton Erickson was a famous American psychiatrist and psychotherapist.

What is Milton Erickson?

He is widely known for his pioneering work in the field of hypnosis. He believed that hypnosis is a form of communication between the hypnotist and the subject and that it involves a process of "roleplay" in which both parties take on certain roles or identities. In this sense, the hypnotist takes on the role of a facilitator or guide, helping the subject access their own inner resources and abilities. The subject, on the other hand, takes on the role of an active participant in the hypnotic process, using their own imagination and creativity to bring about positive changes in their thoughts, feelings, and behaviors.

Hence, the researcher who theorized that hypnosis comes about as a form of roleplay between hypnotist and subject is Milton Erickson, who is in Option D.

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