PLEASEEEEE HELP!!

Prokaryotic cells have (12b.DOK1)


Question 16 options:

A). chloroplasts


B). genetic material


C). nucleus


D). mitochondria

Answers

Answer 1

Answer:

B

Explanation:

All prokaryotes have plasma membranes, cytoplasm, ribosomes, a cell wall, DNA, and lack membrane-bound organelles.

Answer 2

Answer:

B genetic material

Explanation:

Eukaryotic cells have chloroplasts, nucleus, and mitochondria but prokaryotic cells are cells that are like bacteria which don't have the stuff that Eukaryotic cells have


Related Questions

What is the best microscope to get a detailed view of the parts inside of a preserved plant cell?

Transmission electron microscope
Scanning electron microscope
Compound light microscope
Dissecting microscope

Answers

Transmission electron microscope

Answer:

transmission electron microscope

Explanation:

Which property do solutions with low pH values have?

Answers

Answer:

b) Tastes sour

Explanation:

When a new paved parking lot is made, it interrupts which part of the water cycle the most?


SC.912.L.17.10

A.
The ability of trees to take up water through their roots.

B.
The ability of water to fill underground aquifers.

C.
The ability of rivers to be filled by water runoff.

D.
The ability of water to evaporate.

Answers

Answer:a

Explanation:

which part of the bone is a hollow cylinder that makes the bone strong

Answers

Explanation: diaphysis

why is sustainable use of natural resources important? to ensure that natural resources are available for future generations to help make daily life simpler by providing what every person needs to encourage scientists to make new and elaborate discoveries to prevent the exchange of resources from one region to another

Answers

Answer:

The correct answer is (a) to ensure that natural resources are available for future generations.

Sustainable development means optimized use of natural resources to meet the demand of people in the present and future scenario. The main aim of sustainable development is to balance our economic, environmental and social needs which allows the prosperity for now and future generations. Sustainability can only be maintained when the resources are used in a way that it meets the need of people, not the greed of people.This is done to ensure that natural resources are available for future generations.

Explanation:

Hope this helps...

The sustainable use is important as it ensure that the natural resources are available for future generations. So, the correct option is A.

What is Sustainable development?

Sustainable development is defined as an organizational principle which aims to meet the human development goals while also enabling natural systems to provide essential natural resources and ecosystem services to humans.

The main objective of sustainable development is to balance our economic, environmental and social needs in a way which allows prosperity for present and future generations. The sustainable use is important as it ensure that the natural resources are available for future generations.

Therefore, the correct option is A.

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Your question is incomplete, most probably the complete question is:

Why is sustainable use important?

to ensure that natural resources are available for future generationsto help make daily life simpler by providing what every person needsto encourage scientists to make new and elaborate discoveriesto prevent the exchange of resources from one region to another

Which is NOT an example of proper gym etiquette?


options:


A.
Wipe down machines after use.

B.

Demonstrate proper body mechanics.

C.

Use equipment quickly if people are waiting.

D.

Limit time on the treadmill during busy times.



no links

Answers

B because all of the other options are about how you should use the equipment properly or letting other people use them too.

Using equipment quickly when people are waiting is actually an example of poor gym etiquette. Therefore option C is correct.

Sharing the equipment and being mindful of other gym patrons are key. When others are waiting and equipment is being used inappropriately, it can be detrimental to everyone's experience.

It's crucial to be aware of when the gym is busy and to give others a chance to use the equipment.

For the purpose of fostering a welcoming and inclusive environment, good gym etiquette entails showing consideration for and respect for other participants.

Therefore, The correct option is B.

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I need to connect each monomer to its polymer

Answers

I really hope it helps you!
Connect the dots

Everything on earth is made up of atom
true or false

Answers

CHIPOTLE, CHICK-FIL-A, BURGER KING, MCDONALDS… ETC.

what contributes to antigenic shift in influenza viruses?

Answers

Answer:

The particular structure of the influenza virus genome and function of its viral proteins enable antigenic drift and antigenic shift.

Answer:

Between worldwide outbreaks, known as pandemics, influenza viruses undergo constant, rapid evolution (a process called antigenic drift ), which is driven by mutations in the genes encoding antigen proteins.

Antigenic shift is the process by which two or more different strains of a virus, or strains of two or more different viruses, combine to form a new subtype having a mixture of the surface antigens of the two or more original strains. The term is often applied specifically to influenza, as that is the best-known example, but the process is also known to occur with other viruses, such as visna virus in sheep. Antigenic shift is a specific case of reassortment or viral shift that confers a phenotypic change.

Explanation:

How do the properties of water and the ability to modify the rates of chemical reactions enable living things to carry out functions necessary for life, such as digesting food?

Answers

Answer:

A chemical reaction is a process that changes some chemical substances into others. It involves breaking and reforming chemical bonds. They follow the Law of Conservation of Matter.

Explanation:

Energy is a necessity for all living organisms to survive, and ATP is a reactant that powers several other chemical processes inside cells. Cellular respiration is the method used by cells to produce energy.

What attributes of water are requisite for an organism?

The term “universal solvent” refers to water's enormous capacity to dissolve a wide range of molecules, and it is this capacity that makes water such a priceless life-sustaining agent.

Water has five key characteristics: strong polarity, high specific heat, high heat of vaporization, low solid density, and affinity for other polar molecules.

The process of converting one chemical substance into another is known as a chemical reaction. Chemical bonds are broken and rebuilt in this process. The Law of Conservation of Matter is observed by them.

Therefore, Water's function as a solvent aids cells in the transfer and utilization of chemicals like oxygen and nutrients on a biological level.

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if yellow, red, and orange pigments exist in the leaves of trees, why are leaves green except for in the autumn?

Answers

Answer:

During the fall the day gets shorter hence less sunlight this results to leaves stopping their food making process. The chlorophyll breaks down, the green color disappears and the yellow to orange color becomes visible

Explanation:

help please for science

Answers

Answer:

The variety of different genes in a population of organisms

Explanation:

Genetic Diversity is in fact the overall range of individual and varying characteristics in a population. Genetic diversity is what makes different organisms and species unique, and even usher in traits that become favorable for survival. Without genetic diversity, many species would die out before evolving (because it would be near impossible to evolve with their surroundings without genetic diversity).

what are some examples of diffusion in living organisms

Answers

Answer:

Oxygen and carbon dioxide, dissolved in water, are exchanged by diffusion in the lungs:

oxygen moves down a concentration gradient from the air in the alveoli to the blood.carbon dioxide moves down a concentration gradient from the blood to the air in the alveoli.

Answer:

oxygen moves down a concentration gradient from the air in the alveoli to the blood.

carbon dioxide moves down a concentration gradient from the blood to the air in the alveoli.

Explanation:

most of the photosynthesis in lakes and ponds occurs in the:

Answers

Answer:

its occurs in the Littoral zone

Explanation:

The Centers for Disease Control (CDC) collect vast amounts of data. For this activity, we want you to use their Natality Information database to test various hypotheses about birth. For the following five issues, please create a hypothesis and then use the database to collect information about the issue. Once you the data is displayed, record it and indicate whether your hypothesis was supported by data.

The database functions in this manner:

Upon going to this website, you will need to comply with the CDC requirements for using the database. Because this is a school activity, you will be fine. Click I Agree.
The top section (Section 1) of the query engine will allow you to determine how your data sets will be displayed. You will want to Group Results by State for the queries you will perform.
Be sure to select the correct measure for your question/hypothesis. Select only one measure for each query.
Section 2 allows to select individual states or multiple states for comparison. If you have selected states in Section 1, you can run multiple data sets here and see them displayed by state. If you did not, the only way to see individual state data is to run the query one state at a time.
The remaining sections include the conditions you can use for comparison. You will need to find the appropriate section for the condition you are testing for. Once you have found it, go ahead and run your query by clicking Send.
Let me talk you through the process. Seriously, watch this video explanation of what you're doing.

Here's an example. Which state, Utah or New York, has the highest average age for mothers giving birth?

Hypothesis: New York has the highest average age for mothers giving birth.
Data (based on the following settings)
Section 1: Group Results by State; Measure: Average Age of Mother (years)
Section 2: Select Utah and New York

Run the report (click Send) and the data says that New York's average age of mothers is 30.26 and Utah's is 28.59
Supported hypothesis: Yes
Data Questions
Now run the data queries for the following questions and record your hypothesis, data, and whether your hypothesis was supported.

Which state, Wyoming or Texas, has the highest fertility rate?
In which state, Hawaii or Illinois, is the mother's education the highest?
Pick two states and determine which state has the most births in May. (For this question and the next two, don't forget to make a hypothesis about which one you think it is.)
Pick two states and determine which state has the most twins.
Pick three states and determine which state has the most babies with Down syndrome.

Answers

Answer:

Texas saw 382,050 births in 2017 the total fertility rate was 1,884 for whites, 2107. for black 2263

hawala............ higher education rank #21

Which layer of the
earth has the greatest
density? Why?

Answers

Answer: metal inner core

Explanation:

It is made of the densest components & it is under the greatest compression; due to the overlying layers.

The inner core of Earth has the greatest density due to:

- The inner core is made of solid iron and nickel

- The inner core gets consolidated due to pressure exerted by the other top layers.

What are the different layers of the Earth?

Generally the Earth is made of three different layers:

- Crust- The outer layer

- Mantle - The Middle Layer

- Core - The Inner Layer.

Crust:

Outer layer of the Earth and is thin, brittle and cold compared to other layers.

It is majorly made of light elements especially silica, aluminum and oxygen.

The thickness of crust varies for for land and ocean where the former is thicker than latter.

Mantle:

It is around 3000 km thick and is the thickest layer of the Earth. It starts mere at 30 km from the earth's crust.

It is majorly made of Iron, Magnesium and silicon and is dense, hot and semi solid.

The upper part of the mantle is liquid in nature called as Asthenosphere and it is believed that tectonic plates rides upon here and slide across.

Core:

Core is further divided into Outer core and Inner core.

Outer core is made of iron and nickel and is liquid in nature. It is heated largely by the radioactive decay of the elements of the uranium and thorium and this liquid churn huge turbulent current.

Inner core is a solid metal ball having radius of 1220 km. It is extremely dense and is mostly made of iron and nickel.

The temperature of inner core is similar to that of the surface of sun along with high amount of pressure.

Thus this layer has the greatest density amongst all the layers of the Earth.

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Which statement explains the relationship between the density of a material and its movement in Earth’s interior?

Cooler materials move from Earth’s mantle to the lithosphere.
Cooler materials are highly dense, causing them to sink to the outer core.
Warmer materials sink to the mantle because their density slowly decreases.
Warmer materials have a high density, causing them to rise to Earth’s surface.

Answers

Answer:

Choice B. Cooler materials are highly dense, causing them to sink to the outer core.

Answer:

Cooler materials are highly dense, causing them to sink to the outer core.

Explanation:

what distinguishes paracentric inversions from pericentric inversions?

Answers

Answer:

Inversions are of two types: paracentric and pericentric. Paracentric inversions do not include the centromere and both breaks occur in one arm of the chromosome. Pericentric inversions include the centromere and there is a break point in each arm.

Explanation:

Hope this helps :)

pls mark brainliest <3

To perform cellular respiration hydrogen atoms are moved across a membrane inside the mitochondria.
If no energy is required to move the hydrogen atoms from one side of the membrane to the other how
does this happen?

Answers

Answer: Passive transport

Explanation: Passive transport does not require energy to move substances across a membrane.

Solve .

A.


B.


C.


D. 64

Answers

Explanation:

i think it is d 64 bro please follow me

how do chlorophyll pigments absorb energy from light?

Answers

Answer:

They do this through a process called photosynthesis, which uses a green pigment called chlorophyll. A pigment is a molecule that has a particular color and can absorb light at different wavelengths, depending on the color. ... The energy absorbed from light is transferred to two kinds of energy-storing molecules.

Real life non examples for cell membrane

Answers

Answer:

ribosomes, the cell wall, and the cytoskeleton.

Explanation:

Suggest how the scent from the flowers
spreads out into the air

Answers

Answer:

through diffusion

Explanation:

I think so that by diffusion this occurs

Answer:

Pollinators which may be insects, birds, or other animals would reach the flower by being stimulated through their sense of smell. The scent from flowers gets spread through the air everywhere because the scent producing molecules are low weight. The low molecular weight help them spread and diffuse everywhere

hope it helped

Which of the following is NOT
how mitochondria could have
become part of the eukaryotic
cells?

A. It may have entered as a parasite.

B. It may have been engulfed.

C. It may have entered through photosynthesis.

Please help

Answers

Answer:

Its C

Explanation:


C is the answerr I think

Which statement describes a prokaryotic cell?

A.) An amoeba with a vacuole

B.) A blood cell from an animal

C.) A plant cell with chloroplasts

D.) A bacteria without a nucleus

Answers

D. A Bacteria without a nucleus

what can cause a cell to inherit the incorrect number of chromosomes?

Answers

Answer:

These changes are not inherited, but occur as random events during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction results in reproductive cells with an abnormal number of chromosomes

Explanation:

Answer:

Nondisjunction.

Explanation:

They perform as random events during the formation of reproduction cells but they arent inherited. A result of reproductive cells with an abnormal number of chromosomes is caused by nondisjunction.

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Which statement is true? (1 point)
Most protists only respire without oxygen.
Most protists can respire with small amounts of oxygen.
Most protists can respire with and without oxygen at will.
Most protists only respire with oxygen.

Answers

The true statement is : ( C ) most protists can respire with and without oxygen at will

Protists

Protists are eukaryotic organisms that can respire either through aerobic respiration ( the use of oxygen ) mostly for obligate protists.  while certain parasitic protist can respire through anaerobic respiration process ( without the use of oxygen ).

Protists can be Fungi, animal or even plants therefore from the options given above most protists can respire with and without oxygen.

Hence the true statement is most protists can respire with and without oxygen at will.

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Answer:Most Protists only respire with oxygen

Explanation: I just took the test, this is 100% correct

Name four ways synthetic fibers are different from each other?

*forensic science*

Answers

Synthetic fibers can vary greatly from one another. The main reason they can have such varying characteristics is that they can be of four distinct types.

Synthetic fibers are those that cannot be found in nature, but rather are created by man. They can be of four types:

Nylon RayonPolyesterAcrylic

Rayon is one of the types of synthetic fibers created by man. One of the weaker fibers, It is commonly referred to as synthetic silk, having many properties similar to those of silk. It is the result of wood pulp being fused with cotton or wool and is commonly used to create beddings and other home decorations, in varying colors.

Nylon shares few, if any, characteristics with rayon. It is a strong and elastic synthetic fiber. In fact, nylon is stronger than steel wire, even though it is created from water, coal and air. Nylon can be found in tents, climbing equipment, toothbrushes, and many more everyday appliances.

Polyester is a stranger form of synthetic fiber. As its name implies, it is formed from the repetition of esters. Polyester is often used for dressing, given its wrinkle-free properties and resistance. However, many kinds of polyesters exist, leading to its use in bottles, wires and more.

Finally, Acrylic is the final kind of synthetic fiber. Acrylic is a fiber which is normally used to replace wool. Acrylic can be seen used in blankets and sweaters. It is also often used to create panels that will imitate glass, which shows exactly how flexible and useful synthetic fibers can be.

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what is the purpose of motor nerve varicosities as they relate to smooth muscle?

Answers

Neuroeffector junctions are varicosities where motor neurons release neurotransmitters to non-neuronal target cells.  These junctions can be observed along the axon.

The motor nerve varicosities RELEASE neurotransmitters onto smooth muscle cells.

There are many varicosities along the axons of the neurons that feed smooth muscle cells.

When autonomic neurons are stimulated, varicosities release neurotransmitters along their axons.

These neurotransmitters then diffuse through the interstitial fluid to interact with receptors in the smooth muscle cells.

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what is the function of the structural elements of a virus?

Answers

Answer:

The capsid has three functions: 1) it protects the nucleic acid from digestion by enzymes, 2) contains special sites on its surface that allow the virion to attach to a host cell, and 3) provides proteins that enable the virion to penetrate the host cell membrane and, in some cases, to inject the infectious nucleic

Explanation:

Hope this helped you if it did please mark brainliest

The structural elements of a virus, such as the capsid, envelope, and spike proteins, serve to protect and deliver the viral genome into host cells for replication.

What are the structural elements of a virus?

The structural elements of a virus have different functions that are essential for the survival and replication of the virus. These elements include:

Capsid: The capsid is the protein shell that surrounds the viral genetic material. It provides protection to the viral genome and determines the shape and size of the virus.

Envelope: Some viruses are surrounded by an envelope, which is a lipid membrane that covers the capsid. The envelope helps the virus to evade the host's immune system and enter the host cell.

Spike proteins: Spike proteins are protruding structures on the surface of the envelope that are used to bind to the host cell. They play a crucial role in the process of virus entry into the host cell.

Nucleocapsid: The nucleocapsid is the complex of the viral genome and the capsid. It is responsible for protecting and delivering the viral genetic material into the host cell.

Tail fibers: Some viruses have tail fibers, which are structures that help the virus to attach to the host cell and initiate the entry process.

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