What is prokaryotic cells??​

Answers

Answer 1

Answer:

Prokaryotes are single-celled organisms of the domains Bacteria and Archaea. All prokaryotes have plasma membranes, cytoplasm, ribosomes, a cell wall, DNA, and lack membrane-bound organelles. Many also have polysaccharide capsules. Prokaryotic cells range in diameter from 0.1–5.0 µm.


Related Questions

What happens during interphase? (Check all that apply)
A. General Cell Processes

B. Growth

C. DNA Replication

D. Mitosis

Answers

Answer:

A. General Cell Processes

B. Growth

C. DNA Replication

Explanation:

During interphase, the cell grows and makes a copy of its DNA. During the mitotic (M) phase, the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells.

During interphase, the cell grows and makes a copy of its DNA. During the mitotic (M) phase, the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells. So, the option A, B and C are correct.

What do you mean by interphase?

Interphase is the portion of the cell cycle that is not accompanied by visible changes under the microscope, and includes the G1, S and G2 phases. During interphase, the cell grows, replicates its DNA and prepares for mitosis.

A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.

Interphase is the longest part of the cell cycle. This is when the cell grows and copies its DNA before moving into mitosis. During mitosis, chromosomes will align, separate, and move into new daughter cells.

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Can someone pls answer these multiple-choice questions, will mark as brainliest.

Answers

Awnser b is correct

Choose the combination of factors that creates snow.

Answers

Answer:

Relative Humidity- Low

Air tempurature-cold

Air Pressure-low

Explanation:

High pressure, warm temperatures, and high humidity are  factors that creates snow.

What are the factors that create snow?

Snow and/or ice formation requires temperatures below freezing, both in the atmosphere and close to the ground.

Something that will induce the moist air to rise, forming clouds and precipitation, moisture, produces precipitation and clouds.

Water that has frozen solidly is snow, and the atmosphere (layer of gases around Earth) contains water in the form of vapor (gas). When there is a lot of vapor present, clouds develop, fill up with water droplets, and eventually begin to rain.

Therefore, when a very cold water droplet freezes onto a pollen or dust particle in the atmosphere, a snowflake starts to form.

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Why are whales closer related to giraffes than tuna?

A. Whales and giraffes are both mammals.

B. Tuna live in water but they are fish and not mammals.

C. Both of these are correct.

Answers

Answer:

Hey mate.....

Explanation:

This is ur answer.....

A. Whales and giraffes are both mammals.

Hope it helps!

Brainliest pls!

Follow me! :)

Answer:

C. Both of these are correct.

Explanation:

Whales are the artiodactyls a group of hoofed mammals that includes deer, pigs, giraffes, camels and hippos.

I’m pretty sure it’s correct but if someone could double check pls

Answers

Your answer is incorrect because for animal to to form meiosis they have to have inter reaction with each other. So it testes and ovaries

it would be testies and ovaries

this type of cell is found in females and is needed for reproduction​

Answers

Answer:

egg cell

Explanation:

Gametes are an organism's reproductive cells. They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome.

Gametes is the answer❤️

What do sea squirts eat?​

Answers

Answer:

sea squirts eat plankton

Explanation:

PLEASE HELP! WILL MARK BRANLIEST!
The amount of carbon today is the exact amount that has always been on Earth. T or F

Answers

Answer:

False

Explanation:

Every time, the amount of carbon increases depending on the population that has grown on our planet. Carbon is a chemical substance that is created by human activities which are wood, coal, natural gas, gasoline, and oil, If it is burned, Carbon dioxide is released and mixing it in the air and continuously adds for as long as they keep doing it.

Thank you! ^^

cuanta poblacion tiene Janca

Answers

Answer:

Se estima que un total de 70.000 personas.

A species is an organism that has different traits cannot______ with other organisms.

1) breed
2) evolve
3) exist
4) survive

Answers

Answer:

2 evolve

I hope your answer is correct

cells are surrounded and protected by

Answers

Answer:

Plasma membrane or cytoplasm

Explanation:

Which of the following does NOT contribute to sea level rise?
O Melting of glacial ice sheets on Iceland and Antarctica
O Melting of mountain glaciers
O Melting of sea ice in the Arctic Ocean

O Expansion of ocean water as it warms

Answers

Answer:

D is the correct option

Explanation:

expansion of water is not significant over day night temperature

in order to increase chances of survival in a changing environment, it is important for a species to have

Answers

Answer:

One key way by which species evolve over time in response to changes in environmental conditions is adaptation by natural selection acting over generations. Characteristics that aid in effective survival and reproduction in the new environment grow more prevalent, while those that do not become less prevalent.

Explanation:

Explain what happens to an plant cell when it is removed from the organism and placed into a concentrated sucrose solution

Answers

Answer:

They shrink and pull away from the cell wall.The cell becomes flaccid. It is becoming plasmolyed. in a very concentrated solution, the cell undergoes full plasmolusis as the cells lose water

Answer:

They shrink and pull away from the cell wall. The cell becomes flaccid . It is becoming plasmolysed . In a very concentrated solution, the cell undergoes full plasmolysis as the cells lose more water.

hope it helps

Describe how organ systems interact to get oxygen to the cells

Answers

Your blood also carries oxygen inhaled by the lungs. Your circulatory system delivers oxygen and nutrients to the other cells of your body then picks up any waste products created by these cells, including carbon dioxide, and delivers these waste products to the kidneys and lungs for disposal

The body's cells are supplied with oxygen and nutrients through the heart, blood, and blood vessels. Blood transports carbon dioxide to the lungs (for exhale) and picks up oxygen through the network of arteries, veins, and capillaries.

What is oxygen in the body?

Our bodies require a specific amount of oxygen to function effectively since oxygen is necessary for life. When you breathe (inhale), oxygen enters your body through your mouth or nose and travels through your lungs into your bloodstream.

Oxygen inhaled by the lungs is also carried by your blood. Your body's other cells receive oxygen and nutrition from your circulatory system, which then collects any waste products they produce, including carbon dioxide, and transports them to your kidneys and lungs for elimination.

Therefore, the blood collects food nutrients from the small intestine and transports them to every cell in the body.

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The growth of two plant saplings A and B, were observed for a period of 6 months. The graph shows the linear growth of the saplings, in centimeters.

After how many months will the heights of the two samplings be the same?

Answers

5 is the correct answer I hope

Why is it important for us to learn about digestive system in the first place?
please help​

Answers

Answer:

The liver, pancreas, and gallbladder are the solid organs of the digestive system. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. This is a major contributing factor for our bodies being able to keep homeostasis.

Very important because we really need those things

What is the source of the carbon dioxide that is used in photosynthesis?

Answers

Answer:

Photosynthetic cells

Explanation:

photosynthetic cells are diverse and are found in green plants during the process of photosynthesis cells use carbon dioxide and energy from the sun to make sugar molecules and make oxygen

State two substances which will
diffuse out of a cell:
(I already know Carbon Dioxide)

Answers

Water and Oxygen.

Hope this helps; have a great day!

What must happen before meiosis can begin?
A. Four gametes must be produced.
B. The four tetrads must be pulled apart.
C. DNA doubles and produces sister chromatids.
D. The cell membrane pinches together.


Answers

The process that must happen before meiosis can begin is that DNA doubles and produces sister chromatids (Option C).

What is meiosis?

Meiosis is a cell division process that generates four daughter cells having half of the DNA when compared to the parental cell.

Meiosis needs first the duplication of the genetic material by means of a synthesis stage (S phase).

In conclusion, the process that must happen before meiosis can begin is that DNA doubles and produces sister chromatids (Option C).

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1. Stern cells are different from other cells, as they are not specialized and can reproduce other unspecialized cells. There has been great controversy over the use of stem cells in the United States, especially when they are taken from fetal tissue. What are some possible benefits to humans of using stem cells?


plz hellllp ​

Answers

Answer:

Stem cell benefits:

Can repair limbs such as Arms cut off etc.

Can Repair cells and keep people from ageing

Can reduce the effect on diseases

Test new drugs for safety and how effective they are

Make people live longer and healthier lives

Explanation:

Humans aren't aware on how to harvest stem cells effectively in a way they work on humans tot heir full potential but the reasons I listed above are only the tip of the iceberg when it comes to what we can do with these.

amoeba sisters: nature of science

Answers

Answer:

The scientific mrthod is a process used by scientists to find answers to a question or to solve a problem. No there isn't just one because there are several versions of the scientific method. Some versions have more steps, while others may have only a few. Scientists can add steps, take out steps, revise, or make models.

The scientific method is a systematic approach used by scientists to investigate and understand the natural world.

It consists of a series of steps that guide the process of conducting scientific research and acquiring knowledge.

While there is a general framework for the scientific method, it is important to note that there is no single, universally accepted version of it.

The exact steps and emphasis may vary depending on the field of study, the specific research question, and the nature of the scientific inquiry.

Different branches of science may have their own specialized methodologies and techniques.

For example, the methods used in social sciences or qualitative research can differ significantly from those used in the natural sciences.

Thus, this is all about scientific methods.

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PLEASE HELP FAST WiLL GIVE BRAINLIEST

Answers

Answer:

C

Explanation:

C has many pores per volume than A

Answer: D

Explanation: The surface area to volume ratio is a critical factor in deciding the ability of a cell to take in nutrients through a passive transport process such as diffusion.

Model A has a lower surface area to volume ratio while B has a greater surface area to volume ratio.

the organelle responsible for inspecting and packing protein?

Answers

mitochondria.

hope this helps!!

What happens when traits are not dominant or recessive

Answers

Explanation:

This situation is called an incomplete dominance. A great example of this is when a plant with red flowers is paired with a plant with white flowers and the seeds give plants with pink flowers

Questions are in the attachments I’ll give a brainlist

Answers

menstruation

it is the shedding of endometrium layer of uterus in females

it is a cycle of 28 days and menstruation occurs in first 5 days of cycle

if female is pregnant then there ia no menstruation

Answer:

mensturation

Explanation:

if the unfertilized egg pass out of the female body then mensturation occurs but if the egg fertilized with the men's sperm the fertilized egg travels through the fallopian tube to implant itself into the uterus.And finally women is considered pregnant.

4. Diagrams, tables and graphs are used by scientists mainly to
predict the independent variable
test a hypothesis
design a research plan for the experiment
organize data

Answers

Answer:

word to my dead When a long-term environmental change occurs, certain individuals in a population will be better adapted for the new environment than others. These individuals will be more likely to survive and pass on their traits to their offspring. Over many generations, these favorable adaptations build up in a population. This may lead to speciation, which is the development of a new species.

Explanation:

Help me with numbers 44 and 45

Answers

Answer:

44- object 2

45- objects 1 and 4

Explanation:

44- object 2 push force is higher one the left then on the right

45- object 1 cancel eachoher because they have the same push force as eachoher and object 4 don't move at all because they don't have any push force on either side

Do you think cell division stops after a new baby is born? Why or why not?
please help me i really need it lol

Answers

Answer: cell division does not stop after a baby is born bc if it were to stop then the baby would not grow

Scientists are studying the mating habits of a population of butterfly fish on a Caribbean coral reef. They discover that both the largest and smallest males get the most mates and pass on the largest number of genes to the population's offspring. The largest males get a large number of mates because they can guard the females, preventing most of the smaller males from mating. However, the very smallest males also get a large number of mates because they escape the notice of the larger males and are able to mate with the females quickly. Based on these observations, which selective force appears to be acting on male body size in this population?

Answers

Answer:

The correct answer is - Disruptive selection.

Explanation:

Disruptive selection is a mode of natural selection that exhibits that two extreme values of phenotypic traits of the population are favored by this population than the population with their intermediate values. Disruptive selection occurs when there is a fitness advantage of extreme values of phenotypic traits over more intermediate phenotypes.

In this case, the largest males mates more, due to fact that they can guard the females, than smaller males. The smallest fishes also get a high number of mates as are able to mate with the females quickly without coming to the notice of larger males.

Other Questions
NEED HELP ASAP!!!!!!!!!!!!!Jerry and Elaine are talking at lunch Jerry: "did you have a good weekend?"Elaine: "Yeah how about you?"Jerry: "It was pretty good but my neighbor kept dropping in unannounced."Elaine: "did you hear about George?"Jerry: "no."Elaine: "He has been coming into work late a lot I think the boss is going to fire him."while elaine is saying this Jerry puts his finger to his mouth to shush her while George walks up from behind.Version 1: George walks away. He never talks to Elaine or jerry again.Version 2: George confronts Elaine, saying "I am angry about what you have been saying. I don't want you spreading rumors about me. if you have any problems please see me about it.Version 3: George yells at Elaine to sh*t up and then confronts his boss demanding to know why he is going to be fired.Version 4: George demands that Elaine tell him where she heard that. Elaine tells him not to worry about it and tries to crack a joke about how much the boss is late.Choose the answer that correctly identifies the conflict management style represented by each version.A. 1-non confrontational 2-cooperative 3-confrontational 4confrontational and non confrontational.B. 1-confrontaional 2-cooperative 3-confrontaional 4-cooperative and confrontaional C.-1- cooperative 2-confrontational 3-non confrontational 4-both are confrontational D.all of the above.I WILL MARK BRAINLIEST Factorize: (a+b)^2 + 4 (a+b)+ 4 What is the relationship between the values tand s plotted on the number linebelow?SA. t= sB. t>sO c. tcs What is the general form of a synthesis reaction?O A. AB + CD AC + BDB. A + B ABO C. AB + C AC + BD. 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Gross profit figures under both methods for the past three years appear below:Completed-Contract Percentage-of-Completion2013 $ 475,000 $ 900,0002014 625,000 950,0002015 700,000 1,050,000 $1,800,000 $2,900,000Assuming an income tax rate of 40% for all years, the affect of this accounting change on prior periods should be reported by a credit of:____________ Help me with these 20 questions on Law and Government. (This is due tomorrow at 11:00 AM) 1. What is government and why does it exist and why do we need it? 2. What ideas influenced the Constitution? 3. What is the importance of the Constitution?4. What is federalism and how does it work?? What are its Strengths & Weaknesses?? 5. How and why do people vote the way they do?? 6. What is the process of political socialization and how does it affect voter behavior?7. How does the American electoral process work?8. How do Presidential and Congressional electoral processes differ?9. What is the role of Congress in government? 10. 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Without it, species would die out. To ensure their survival, animals have developed unique adaptations to improve their chances of reproducing. Behavioral adaptations are behaviors an organism performs to help it survive. Structural adaptations are physical features that help an organism survive.The image below shows two peacocks. The male peacock is large and brightly colored. The female peacock is not as colorful. The size and color of the male's feathers attract females. This is an example of a structural adaptation intended to help with reproduction. Another structural adaptation is when male deer grow large antlers to attract females. Animals also use behavioral adaptations to attract mates. For example, male frogs sing to attract females and male spiders dance to attract females.Plants also have adaptations to help with reproduction. While animals use behavioral and structural adaptations to improve reproduction, plants only use structural adaptations. For example, brightly colored flowers attract butterflies. Certain flowers also have nectar or give off an odor to attract insects. Attracting butterflies and other insects is important because they play a role in reproduction by pollination.Which of the following describes an adaptation that relates to reproduction?A. Hawks have sharp beak to help them quickly catch their prey B. Elks attach leaves and grasses to their antlers to help them appear larger C. Polar bears have white fur to help them blend into their surrounding environment D. Whales have a thick layer of fat called blubber Mr. Norris buys a boat for $125,000. He has to pay a 5% tax on his purchase of the boat. How much money is the tax? The difference between 8 and a number is 5.