which of the following cellular structure is possessed by all cells?
a. nucleus
b. cell membrane
c. chloroplast
d. mitochondria​

Answers

Answer 1

Answer:

A

Explanation:

the nucleus is needed for all living creatures cells it contains the dna info to create basically the whole plants being.

Answer 2

All cells that can either prokaryotic or eukaryotic possess a cell membrane. The correct option is b.

What is cell membrane?

The cell membrane is a biological membrane that segregates the inside of all cells from their surroundings and helps to protect the cell.

It is present in all organisms including a prokaryotic and eukaryotic cell.

Thus, the correct option is b.

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Related Questions

ANSWER IS IN PHOTO!!!!!!!!!

Answers

Answer:

B

Explanation:

The answer you are looking for is B.

It’s b

Hope this helpssssss

What makes Renaissance Period different with other periods?

Answers

Explanation:

The Renaissance was a fervent period of European cultural, artistic, political and economic “rebirth” following the Middle Ages. Generally described as taking place from the 14th century to the 17th century, the Renaissance promoted the rediscovery of classical philosophy, literature and art.

The bond order for a double bond is
O A. Three
B. Two
C. Four
OD
D. One

Answers

Answer:

2

Explanation:

calculator

Deforestation has no direct impact on reptile species.


Please select the best answer from the choices provided

T
F

Answers

Answer:
FALSE
Explanation:
If you live in you house, in a town, with your neighbors, and a tornado flattened you town, would that have a direct effect on your species? (Let's assume humans are rare & and people are territorial so you can't move) YES
This equals;
less genetic diversity
less population
less towns


Answer:

The Answer os FALSE

Explanation:

Was correct on the Exam :D

What factor will most impact the process of photosynthesis?

Answers

Answer:

CO2 concentration

temperature

Light intensity

Explanation:

these have impact on photosynthesis

Technology and the Changing Earth: Tutorial

Which region of the country is most in need of storm spiders and their radar technology?

Please help me out guys

Answers

Answer:

a device for collecting and measuring rain as it falls

Answer:[tex]\\ \blue{United States}[/tex]

Weather radar is a vital instrument for observing the atmosphere to help provide weather forecasts and issue weather warnings to the public. The current Next Generation Weather Radar (NEXRAD) system provides Doppler radar coverage to most regions of the United States (NRC, 1995). This network was designed in the mid 1980s and deployed in the 1990s as part of the National Weather Service (NWS) modernization (NRC, 1999). Since the initial design phase of the NEXRAD program, considerable advances have been made in radar technologies and in the use of weather radar for monitoring and prediction. The development of new technologies provides the motivation for appraising the status of the current weather radar system and identifying the most promising approaches for the development of its eventual replacement.

The charge to the committee was to determine the state of knowledge regarding ground-based weather surveillance radar technology and identify the most promising approaches for the design of the replacement for the present Doppler Weather Radar. This report presents a first look at potential approaches for future upgrades to or replacements of the current weather radar system. The need, and schedule, for replacing the current system has not been established, but the committee used the briefings and deliberations to assess how the current system satisfies the current and emerging needs of the operational and research communities and identified potential system upgrades for providing improved weather forecasts and warnings. The time scale for any total replacement of the system (20- to 30-year time horizon) precluded detailed investigation of the designs and cost structures associated with any new weather radar system. The committee instead noted technologies that could provide improvements over the capabilities of the evolving NEXRAD system and recommends more detailed investigation and evaluation of several of these technologies. In the course of its deliberations, the committee developed a sense that the processes by which the eventual replacement radar system is developed and deployed could be as significant as the specific technologies adopted. Consequently, some of the committee's recommendations deal with such procedural issues.

Explanation:

#Let's Study

#I Hope It's Help

#Keep On Learning

#Carry On Learning

[tex]\\ \purple{MaggieEve}[/tex]

How can an object have both kinetic and potential energy at the same time ?

Answers

Answer:

An object can be elevated above the ground (have potential energy) and be moving at the same time (and also have kinetic energy).

Explanation:

An object has kinetic and potential energy at the same time if they are elevated off the ground and are in motion. One instance of this would be a plane in flight because its velocity provides kinetic energy, while at the same time, its height provides potential energy

A mechanic had4 1/2 gallons of motor oil at the start of the day. At the end of the day, only 5 pints remained.

How many pints of motor oil did the mechanic use during the day?

4pt

13pt

19pt

31pt

Answers

Answer:

31

Explanation:

Why have plants and animals been able to adapt to climate change in the past?
A. Slower Change
B. Human Protection
c> Climate has not changed

Answers

Answer:

A. Slower change

Explanation:

because it is a slower change and it had been able to adapt to climate change in the past slowly

Which of the follow is the largest in terms of the number of organisms?

Answers

Explanation:

We can consider numbers of species. Or, we can consider numbers of individual organisms. In terms of numbers of species, insects certainly represent the largest percentage of the world's organisms. There are more than 1 million species of insects that have been documented and studied by scientists.

13. Which layer would have the oldest fossils, a layer deep underground or a layer close to
the surface. Why?

Answers

Answer:

I believe a layer deep underground would have older things, because the ground could erode over time causing the fossil to sink into the ground.

DUE TODAY 60 POINTS
Consider the following process;
1. Sensory nerves signal that you are hungry.

2 You eat.

3. Food is broken down into nutrients.

4. Nutrients enter your blood.

Which of these body system does not work with your nervous system in this process?

A. The Digestive System

B. The Muscular System

C. The Skeletal System

D. The Immune System

Answers

Option C - The Skeletal System

That does not work with nervous system. The skeleton system works with the brain

What is the term for the remains, imprints, or traces of living things from a previous geological age?(1 point) sedimentary rocks sedimentary rocks strata strata radioactive decay radioactive decay fossils

please help.

Answers

Answer:

the answer is fossils

Explanation:

hope this helps

Some tortoises that feed on grasses were observed on an island. Some years later, an environmental change caused the grasses to grow a bit higher off the ground. What evolutionary feature will you expect to see in the tortoises on the island?
A.
The tortoises will develop longer necks.
B.
The tortoises will develop thicker shells.
C.
The tortoises will develop longer tails.
D.
The tortoises will develop thicker tongues.

Answers

Answer:

A

Explanation:

As the grass changes over time, the turtles need to change with it to be able to survive, so their necks will need to grow to reach the tall grass.

Can you please help me answer this question!!

Answers

Answer:

C

Explanation:

Think about the carbon cycle. Describe how each of the two systems in your experiment modeled
aspects of the cycling of carbon on Earth. Which parts of the Earth system - the hydrosphere,
atmosphere, geosphere, and biosphere – were represented by your models? Which part or parts were
missing?

Answers

To identify how your experiment represents the carbon cycle analyze how each Earth's sphere participates in the cycle and relate it to the experiment.

What is the carbon cycle?

This is a natural phenomenon on Earth in which carbon circulates through different spheres.

What is the role of each sphere?Atmosphere: Contains gaseous carbon as carbon dioxide.Biosphere: Plants use carbon and release oxygen; on the other hand, animals produce carbon as a result of the breathing process.Geosphere: Contains carbon, which is the result of processes such as organisms' decay.Hydrosphere: Contains dissolved carbon.

How do you relate the experiment to the natural process?Identify the components of your experiment and the way they interact with carbon.Compare this function to the function of the speheres.Relate the experiment and natural model.

Note: This question is incomplete because there is not information about the experiment; due to this, the answer is based on general knowledge.

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What is kidney dialysis and when is it needed?

Answers

Explanation:

kidney dialysis is when a person is experiencing kidney failure.

it is needed when the kidney don't filtrate blood the way it used to do, so a person will have to go to the doctor and wait for hours so they can have their blood filtrate. it's bad and could lead to death.

The process of giving birth is also known as? ​

Answers

Answer:

Labor is the process of giving birth. Signs that you might be going into labor include: Contractions that are regular then start to come closer together.

Explanation:

how many dogs and cats are euthanized because there is not space for them at the shelters

Answers

Each year around 2.7 million dogs and cats are euthanized because there is not enough space in shelters

The process of examining evidence and linking a potential hazard to its harmful effects is known as what?

A: Toxicity
B: Anticipation
C: Fear
D: Hazard Assessment

Answers

D: Hazard assessment

A bird-watcher sees a small yellow bird in a tree. Explain to the bird-watcher how he can use a dichotomous key to identify the bird. Assume he does not know anything about dichotomous keys. Then, write two steps of a dichotomous key that would be helpful for the bird-watcher.(2 points) PLS HURRY WILL GIVE BRAINLIEST

Answers

A dichotomous key is a classification tool based on morphological or behavioral characteristics. It provides two options per feature.

What is a dichotomous key?

A dichotomous key is a significantly useful tool to classify organisms.

If you have an organism -or part of it- and you need to taxonomically identify it, you use a dichotomous key.

The key provides an easy and fast way for identification by describing different morphological or behavioral traits, leading you to the correct taxonomic classification.

The term dichotomous refers to how information is provided.

You will always have two options per feature (a and b, or 1 and 2), and you will have to choose one of them according to the characteristics of your organism.

Once you choose one of the options according to your organism, the key leads you to the following description, and you will have to choose one of the options again.

You will repeat this until you reach the name of your organism.

The key describes only specific traits that are useful for differentiation.

Now, let us write two steps of a dichotomous key that would be helpful for the bird-watcher.

Description 1a ----------- The organism is a vertebrate ----------- Go to 2

Description 1b------------ The organism is invertebrate ----------- Go to 5

Description 2a ---------- The organism flies ----- Go to 3

Description 2b ---------- The organism does not fly ---------- Go to 4

Description 3a ------ The organism is yellow and sings ---- This is your bird

Description 3b ----- The organism is grey and does not sing --- This is another bird

So in this example, the key asks you if the animal you are looking at is a vertebrate or not. It is a vertebrate, so you choose option 1a and move to description 2.

In description 2 the key asks you if your animal flies or not. It is a bird and is on a tree, so does it fly. You choose option 2a and move to description 3.

Finally, the key asks you if your bird is yellow and sings or if it is grey and does not sing. You choose option 3a and the key tells you the name of your bird.  

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Probiotics are supplements that contain beneficial bacteria that aid in digestion. Some healthcare professionals have seen these bacteria-filled supplements improve the digestive health of many of their patients. Which of
the following is the best explanation of how probiotics can improve digestive health?


Probiotics do more harm than good by increasing the reproduction of harmful bacteria

Probiotics can deactivate viruses that can cause food born illness

Probiotics add beneficial bacteria to the gut that aid in nutrient absorption and help
limit the growth of harmful bacteria

Probiotics increase stomach acid that helps break down food

Answers

probiotics main function is to promote healthy bacteria in our digestive system. When a person is sick or exposed to a harmful bacteria the person digestive system becomes unbalanced. Probiotics fight off the invaders and restores the gut health preventing inflammation and infection. While they fight do fight off bad bacteria we can still end up sick from food borne illnesses. Therefore, Option three explains the main idea and role of probiotics in our body.

Describe DNA replication (steps, components, molecules formed, molecules involved, etc). Describe how to replicate a sequence of nucleotides. What are the base pairing rules?

Answers

Answer:

Explanation:

DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.

How does an athletic trainer use knowledge of
human anatomy and physiology? Check all that
apply.
to prevent injuries
to strengthen the body
to deal with difficult clients
to improve physical fitness
DONE

Answers

Athletic trainers use the knowledge of human anatomy and physiology to do the following:

to prevent injuriesto improve physical fitness

Who is an athletic trainer?

Athletic trainer is a certified and licensed health care professional who practices in the field of sports medicine.

However, an athletic trainer must have prior knowledge of anatomy and physiology so as to carry out his duties.

Therefore, athletic trainers use the knowledge of human anatomy and physiology to do the following:

to prevent injuriesto improve physical fitness

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Answer:

A) to prevent injuries

B) to strengthen the body

D) to improve physical fitness

Explanation:

Next one is,

A) to understand how parts of the body are structured

C) to understand how parts of the body work together

D) to understand how a new drug might affect the body

what is the connective tissue covering the entire muscle called

Answers

the epimysium

each muscle is surrounded by a connective tissue sheath called the epimysium fascia, connective tissue outside the epimysium, surrounds and separates the muscles.

I don’t get it, it’s very confusing

Answers

Me either. There is no picture

what process relseases carbbon dioxide back into the atmosphere

Answers

Answer:

exhaling.

Explanation:

Answer:

Respiration, combustion, decomposition, weathering

Explanation:

A herd of bison is a population, ecosystem or community?

Answers

Answer:

The correct answer should be A, A population.

Which type of electromagnetic radiation enters the greenhouse?

Answers

Explanation:

greenhouse's glass enclosure allows visible light to enter and be absorbed by the plants and soil. The plants and soil then emit the absorbed heat energy as infrared radiation.

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Cells are usually very small. Why is it an advantage to have many small cells instead of one very large cell?

Answers

With smaller cells, more surface area is available for oxygen and nutrients to diffuse in and carbon dioxide to diffuse out of the cell.
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