Animals cells lack _____.
O mitochondria
O chloroplasts
O a nucleus
O all of the choices​

Answers

Answer 1

i guess all of above

(◕‿◕✿)


Related Questions

Read the article and use the information to answer the following questions.
Rainforest Biomes
Match the characteristic of the biome to the type of rainforest.
weather year round is warm and humid
receives about 200 inches of rain a year
trees are mostly coniferous
greatest variety of uniquely adapted organisms

Answers

Answer:

Match the characteristic of the biome to the type of rainforest.

✔ tropical

weather year round is warm and humid

✔ temperate

receives about 200 inches of rain a year

✔ temperate

trees are mostly coniferous

✔ tropical

greatest variety of uniquely adapted organisms

Explanation:

edge 2022

Answer:

Answer:

Match the characteristic of the biome to the type of rainforest.

✔ tropical

weather year round is warm and humid

✔ temperate

receives about 200 inches of rain a year

✔ temperate

trees are mostly coniferous

✔ tropical

greatest variety of uniquely adapted organisms

Explanation:

edge 2022

Which best explains how the green areas depicted in the image on the left are reflected in the population map on the right?

Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near deserts.
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near oceans.
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near mountains.
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near rivers.

Answers

Answer:

D. Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near rivers.

Explanation:

Population is greatly depend on the availability of water. Those areas are densely populated areas where water is present in sufficient quantity as compared to those areas have low population density where water is in low amount. The main reason is that water plays a vital role in our daily life which is used almost in every aspects of life. We can see that deserts have less population due to less water availability and areas attached to the rivers are densely populated due to more water availability.

Answer:

D

Explanation:

Population is greatly depend on the availability of water. Those areas are densely populated areas where water is present in sufficient quantity as compared to those areas have low population density where water is in low amount. The main reason is that water plays a vital role in our daily life which is used almost in every aspects of life. We can see that deserts have less population due to less water availability and areas attached to the rivers are densely populated due to more water availability.

What are three ways RNA differs from DNA

Answers

1. DNA is a double-stranded molecule, while RNA is a single-stranded molecule.
2. DNA is responsible for storing and transferring genetic information, while RNA directly codes for amino acids and acts as a messenger between DNA and ribosomes to make proteins.
3. DNA contains the sugar deoxyribose, while RNA contains the sugar ribose

Answer:

1. DNA is double-stranded, and RNA is single-stranded.

2. DNA stores and transfers genetic information, RNA directly codes for amino acids and acts as a messenger between DNA and ribosomes to make proteins.

3. DNA contains the sugar deoxyribose, RNA contains the sugar Ribose.

what are the three aspects of environment​

Answers

Answer:

An environmental aspect is an element of an organisation's activities, products, and services that can interact with the environment. These can include discharges to water, emissions to air, waste and use of natural resources and materials.

Explanation:

HOPE IT HELPS :D

Answer: activities, products, and services

1. What relationship between accumulation and ablation is necessary for the ice front of a glacier to advance?

Answers

Answer:

As long as snow accumulation equals or is greater than melt and ablation, a glacier will remain in balance or even grow. Once winter snowfall decreases, or summer melt increases, the glacier will begin to retreat.

Explanation:

What structures make up the male and female reproductive systems?

Answers

The penis and the urethra are part of the urinary and reproductive systems. The scrotum, testes (testicles), epididymis, vas deferens, seminal vesicles, and prostate comprise the rest of the reproductive system.

Answer:

Explanation:

Male

External genitilla (pair of testies in scrotum)

Copulatory organ for the transfr of sperms into female body.

Female

A pair of ovaries

Oviduct

Uterus

External genetilla(vagina).

What is a DNA probe?

Answers

Answer:

In molecular biology, a hybridization probe is a fragment of DNA or RNA of variable length which can be radioactively or fluorescently labeled. It can then be used in DNA or RNA samples to detect the presence of nucleotide substances that are complementary to the sequence in the probe.DNA probes are stretches of single-stranded DNA used to detect the presence of complementary nucleic acid sequences (target sequences) by hybridization. DNA probes are usually labelled, for example with radioisotopes, epitopes, biotin or fluorophores to enable their detection.

spanish

En biología molecular, una sonda de hibridación es un fragmento de ADN o ARN de longitud variable que puede marcarse de forma radiactiva o fluorescente. Luego puede usarse en muestras de ADN o ARN para detectar la presencia de sustancias nucleotídicas que son complementarias a la secuencia en la sonda. Las sondas de ADN son tramos de ADN monocatenario utilizados para detectar la presencia de secuencias complementarias de ácido nucleico (secuencias diana) por hibridación Las sondas de ADN generalmente están marcadas, por ejemplo, con radioisótopos, epítopos, biotina o fluoróforos para permitir su detección.

Explanation:

Answer:

Explanation:

DNA probes are stretches of single-stranded DNA used to detect the presence of complementary nucleic acid sequences (target sequences) by hybridization. DNA probes are usually labelled, for example with radioisotopes, epitopes, biotin or fluorophores to enable their detection.

What is the energy that holds the nucleus together?

Answers

Answer:

The strong nuclear force

Explanation:

it is stronger than electrostatic repulsion, and allows protons to stick together in a nucleus even though their charges repel each other.

// have a great day //

Answer:

Strong nuclear force

Explanation:

The neutrons help so the positive force of the protons don’t break up the nucleus.

what chemical substances must be provided for aerobic respiration to take place inside the cell

Answers

Answer:

Oxygen

Explanation:

Cellular respiration can occur both aerobically (using oxygen), or anaerobically (without oxygen). During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts. In cellular respiration, glucose and oxygen react to form ATP.

Hope it helps

Which is an ion found in a glass of water?
O
A. 02

B. N+
C. H+
D. 0-
SUBMIT

Answers

i am pretty sure its C. H+ im sorry if im wrong tho :(

“A student sees several ants walking up a wall following the exact same trail that an ant took earlier. She wants to apply the scientific method the determine how the ants detected the trail. Which of these players would come first in her application of scientific method “
Please help

Answers

Answer:

Choice 4.

Explanation:

After asking the question, the next step in the scientific method is to make your hypothesis.

A recent encyclopedia entry about dogs cites multiple research papers done by scientists at veterinary schools. According to the article, Labrador retrievers come in two specific breeds: English and American. The English breed is described as stocky and heavy, while the American breed is described as tall and lanky. The article describes current scientific research as showing that males of both breeds usually weigh about 29-41 kg (65-90 lb), and females weigh 25-32 kg (55-70 lb). Coat colors for both breeds come in solid black, yellow, or chocolate. All labs have strong tails and webbed feet, which help them swim. Devon would like to use this information to determine if his new dog is an English or American Labrador retriever.

Which best describes the reliability of the information?
It is not reliable because only scientists can use scientific information for reference.
It is not reliable because it doesn’t talk about how to test and only gives data about the breeds.
It is reliable because the article is based on multiple studies done by scientists at multiple veterinary schools.
It is reliable because it gives information about both types of Labradors in addition to information about other types of dogs.

Answers

Answer:

It is reliable because the article is based on multiple studies done by scientists at multiple veterinary schools.

Explanation:

The information in the article can be described as reliable due to the fact that it is based on multiple studies by scientists.

When a study is carried out by different group of independent researchers and a similar result if obtained, the results becomes more or less a theory. A research that is reproducible and gives similar result can totally be relied on for information.

A diet rich in sodium and vitamins helps to maintain good bone growth and
development
O True
O False

Answers

The answer js true because they help you grow

The diagram shows a selection of animals .Choose two alphabets that are invertebrates.

A. B and D
B. A and C
C. B and F
D. E and C

Answers

The correct answer is C) "B and F"

Which of the following terms describes a lipid molecule that has only single
bonds between its carbon atoms?

Answers

Answer:

Saturated fatty acids have only single bonds between carbon atoms. As a result, the carbon atoms are bonded to as many hydrogen atoms as possible. In other words, the carbon atoms are saturated with hydrogens. Saturated fatty acids are found in fats.

The answer is Saturated

















































err, I think?

Hummingbirds drink nectar from flowers. As they pass from flower to flower,
the hummingbirds carry pollen, aiding in pollination. What kind of relationship
exists between the hummingbirds and the flowering plants?
A. Commensalism
B. Predation
C. Mutualism
D. Parasitism

Answers

C. Mutualistic relationship

Flowers and hummingbirds have a mutualistic relationship where both benefit. Flowers produce food in the form of nectar (sugar and water) to attract hummingbirds which, in turn, move pollen for the plant (pollination).

What is the difference between native and nonnative species

Answers

Answer:

Native plants are those plants which occur naturally in a region. A non-native is one that does not.

Explanation:

For example, soybeans, kiwi fruit, wheat, honey bees, and all livestock except the American bison and the turkey are non-native species to North America.

Answer:

Native species are naturally present in an area. ... Non-native species do not cause environmental or economic harm. An important, not-to-be-missed distinction between non-native species and invasive species is that non-native species do not disrupt the natural functions and processes of our native ecosystems.

Explanation:

HOPE IT HELPS : D

PLEASE MARK ME BRAINLIEST

Which would have more humus a desert or a forest

Answers

Answer:

a forest

Explanation:

thinks don't really grow in the desert

Select the correct answer.
How many particles are in a mole?

Answers

23 particles
6.02214076•10^23

A student is given five samples and told they are lysine (an amino acid), lactose (a disaccharide), insulin (a protein hormone), RNA and fat. The samples are in test tubes marked 1-5, but the student doesn't know which compound is in which tube. The student is instructed to identify the contents of each tube. Base on these data, identify what is in each tube. In her first test, she tries to hydrolyze a portion of the contents of each tube. Hydrolysis occurs in all tubes except tube 3. In the next test, she finds that tubes 1, 2, and 3 are positive for nitrogen but only tube 2 gives a positive result for the presence of sulfur. In the next test the student shows that the compound in tube 1 contains a high percentage of phosphate. In the final test the student shows that compound 5 is hydrophobic. Base on these data, identify what is in each tube. 1 2 3 4 5 A. lactose B. RNA C. lysine D. fat

Answers

Answer:

1. RNA 2. Insulin 3. Lysine 4. Lactose 5. Fat

Explanation:

RNA contains both nitrogen and phosphate hence it is the substance in tube 1.

Insulin being a protein contains sulfur hence it is the substance in tube 2.

Lysine does not hydrolyse hence it is the substance in tube 3.

Fat is hydrophobic hence it is the substance in tube 5.

Since lactose does hydrolyse and because the rest have been identified, it must be the substance in tube 4.

Based on these data, each tube is identified as:

tube 1: RNAtube 2: Insulintube 3: Lysinetube 4: Lactosetube 5: Fat

1. first test

Hydrolysis doesn't occur in lysine so, the 3rd tube contains lysine.

2. second test

Nitrogen is present in Insulin(in amino acids), RNA(in nucleotides), and Lysine. Insulin consists of two polypeptide chains (A and B) which are joined by sulfur bonds. So, 2nd tube contains insulin.

3. third test

In RNA, nucleotides are present which consists of phosphate groups. Adjacent nucleotides are joined together by phosphodiester bonds. So, 1st tube contains RNA

5. 4th test

Fatty acids are Hydrophobic due to the presence of long hydrocarbon chains. So, 5th tube contains Fat.

Learn more about hydrolysis:

https://brainly.com/question/4352413

Someone expressing a recessive hair color has _______.
A-1 dominant and 1 recessive allele for hair color
B-2 dominant alleles for hair color
C-2 recessive alleles for hair color

Answers

Answer: The answer would be C

Explanation: This is because in order to express a recessive trait one must have no dominant alleles or otherwise the dominant would win out and be expressed instead. For example, if a person had 1 allele for brown hair and 1  for red the brown would win and the same would happen if they had 2 brown hair alleles. Whereas if a person had two alleles for red hair and none for brown, only then would the red trait be expressed. Hope this helped!

How does the water needed to carry out photosynthesis get to leaves?​

Answers

Answer:

The xylem

Explanation:

The xylem in the stem transports water and minerals from the ground up the plants, and into cells in the leaves so that photosynthesis can be carried out.

As newts' poison became more toxic, the garter snake's resistance to it became more efficient. This is an example of
convergent evolution
coevolution
divergent evolution
adaptive radiation​

Answers

Answer:

coevolution

Explanation:

As newts' poison became more toxic, the garter snake's resistance to it became more efficient. This is an example of coevolution.

In the text area below describe the function of the
cell wall.
DONE

Answers

The cell wall gives cells shape, enables plant growth, prevents bursting from water pressure, keeps out water and pathogens, stores carbohydrates and sends signals to cells. The flexible cell wall surrounds plant cell membranes.

Plant cell walls perform many functions. Their main task is to support proper plant growth. This is accomplished by the cell wall creating a skeleton-like frame that enables plants to grow vertically and develop a rigid stem. Cell walls vary considerably in thickness and organization, which accounts for the wide range of plant shapes and sizes on the planet. They consist of two layers ‰ÛÓ a primary cell wall, which supports the cell as it matures, and a rigid secondary cell wall that appears after the primary wall stops growing. The primary cell wall is thinner and more flexible than the secondary wall. Internally, the primary and secondary walls have a similar physical composition. Over the course of a plant's life, they perform complementary functions to keep the plant healthy and vibrant.

Answer:

The cell wall supports and protects the cell, determines the shape of the cell, assists cells in communication, stores carbohydrates, and allows water and smaller particles to enter the selectively permeable structure of the cell.

ASAP!!!!!!! State your view on an ELSI issue, and develop a logical argument to support your view.

Answers

Answer:

Biotechnology has raised a number of ethical, legal, and social issues. For example, are genetically modified foods safe to eat, and who controls a person’s genetic information?

Explanation:

Concerns from Biotechnology

The use of biotechnology has raised a number of ethical, legal, and social issues. Here are just a few:

Who owns genetically modified organisms such as bacteria? Can such organisms be patented like inventions?Are genetically modified foods safe to eat? Might they have unknown harmful effects on the people who consume them?Are genetically engineered crops safe for the environment? Might they harm other organisms or even entire ecosystems?Who controls a person’s genetic information? What safeguards ensure that the information is kept private?How far should we go to ensure that children are free of mutations? Should a pregnancy be ended if the fetus has a mutation for a serious genetic disorder?

The ELSI issues are important and require to be maintained in order to maintain bioethics and examine various impacts of science and technology on the society.

What are ELSI issues?

ELSI stands for Ethical, Legal, and Social Issues. It is a widely used acronym in the bioethics literature which encompasses a broad range of research work which mainly examines the various impacts of science and technology on the society.

The ultimate mission of the ELSI Research Program is to support the research and education activities which include promotion of genetic privacy and fair use of genetic information, encouraging the responsible integration of new genetic information and technologies into clinical and non-clinical settings, and to ensure that the genetic research is being conducted in ethical way.

Learn more about ELSI here:

https://brainly.com/question/7126793

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What do you do when you have abdominal pains?

Answers

Answer:

Use ginger, drink tea, chew peppermint gum, or simply use a heating pad.

where does the independent variable go on a graph

Answers

Answer:

SCIENTISTS like to say that the “independent” variable goes on the x-axis (the bottom, horizontal one) and the “dependent” variable goes on the y-axis (the left side, vertical one).

HOPE IT HELPS

PLEASE MARK ME BRAINLIEST : )

Explanation:

The U.S. has sent unmanned spacecraft to _____ the planets in our solar system. A. all B. most C. some D. none of

Answers

Answer:  A. all

Every planet in our solar system has been visited by an unmaned spacecraft sent by the United States. The launch years are given in this order

Venus (1962)Mars (1964)Mercury (1973)Jupiter (1977)Saturn (1977)Uranus (1977)Neptune (1977)Pluto (2006)

Answer:c some

Explanation:

only a couple of planets have had unmanned spacecraft sent to them

Which of the following does not support creating curriculum out of play?
A. Providing resources
B. Giving children freedom of choice
C. Offering structured rules and guidelines
D. Allowing sensory play with no objective measurement

Answers

Answer:

C / D

Explanation:

Fill in the blanks with the correct word or phrase.



The process of change in a population over time is called
.



The process by which organisms that are better adapted to the environment survive and reproduce is called
.

Answers

I)I think it's population growth

ii) adaptation

Answer:

Evolution

Natural selection

Explanation:

Other Questions
Questionnaire 15 of 20 :Select the best answer for the question.15. What term refers to the point below the surface where an earthquake begins?O A. Seismic zoneO B. HypocenterO C. EpicenterO D. Seismogenic zone Larry rolls 2 fair dice and adds the results from each. Work out the probability of getting a total that is a multiple of 3. What is a mouthpiece? Is it like a microphone??? Please help!!!!! What was a main cause of the anti-Chinese congress HELLO , PLZ HELP . A diver is 20 m below the surface of the water in a dam. If the density of a water is 1000 kg/m3, determine the pressure due to the water on the diver. (Take g= 10 N/kg) Fill in the blank with the appropriate verb in the past tense.La comida del campamento del verano pasado nonada. Trenton works for a company that is promoting its line of LED lightbulbs. He is selling boxes of the lightbulbs at a local store. A box of 60-watt bulbs costs $7.00, and a box of 100-watt bulbs costs $12.00. During the promotion, Trenton wants to sell more than 100 boxes total and make at least $1,000. The graph and the system of inequalities represent this situation, where x represents the number of boxes of 60-watt bulbs sold and y represents the number of boxes of 100-watt bulbs sold. 7x + 12y 1,000 x + y > 100 Which solution is valid within the context of the situation? A. (90,25) B. (40,64.50) C. (30,80) D. (200,-10) why was the cuban missile crisis so dangerous Find the equation of the linear functionrepresented by the table below in slope-intercept form.X-3-611-25296 why would CH not form as a result of carbon's interactions with other elements? A:Carbon normally has two covalent bonds. B:Carbon normally has four covalent bonds. C:Carbon cannot bond with hydrogen only. Can someone answer this question please please help me I really need it if its correct I will mark you brainliest . Harry likes to grow his own vegetables. He wants to harvest at least 129 squashes during the summer season. If he has already harvested 61 squashes and plans to pick 8 squashes every week, how many weeks will it take him to harvest at least 129 squashes? When a central bank increases bank reserves by $1, the money supply rises by more than $1. The amount of extra money created when the central bank increases bank reserves by $1 is called the money multiplier.a. The money multiplier is generally greater than 1 because:1. in a fractional-reserve banking system, each dollar bill is spent more than once (velocity is larger than 1), thereby increasing the money supply by more than $1.2. in a fractional-reserve banking system, each dollar of reserves can support more than one dollar of deposits, thereby increasing the money supply by more than $1.3. in a 100 percent reserve banking system, each dollar of reserves supports exactly one hundred dollars of deposits, thereby increasing the money supply by $100.4. when a central bank increases bank reserves by $1, deposits are automatically increased by $1 as well, thereby increasing the money supply by $2.The money multiplier is equal to 1 when:1. reserves < deposits.2. reserves > deposits.3. reserves = deposits.b. The initial money supply is $1,500, of which $700 is currency held by the public. The desired reserve-deposit ratio is 0.1. Calculate the increase in the money supply associated with increases in bank reserves of $10. What is the money multiplier in this economy? Assume that individuals do not change their currency holdings.c. A general rule for calculating the money multiplier is:1. 1/(deposit ratio-desired reserve).2. 1/deposit ratio.3. 1/desired reserve.4. 1/(desired reserve-deposit ratio).d. Suppose the Fed wanted to reduce the money multiplier, perhaps because it believes that change would give it more precise control over the money supply. In order to achieve its goal, the Fed would:1. decrease the ratio of reserves to deposits.2. increase reserve requirements.3. increase the money supply.4. decrease reserve requirements. A research scientist wants to know how many times per hour a certain strand of bacteria reproduces. The mean is found to be 7.8 reproductions and the population standard deviation is known to be 2.2. If a sample of 697 was used for the study, construct the 85% confidence interval for the true mean number of reproductions per hour for the bacteria. Round your answers to one decimal place. A research team is interested in assessing whether active versus passive play causes a preference for sweet or salty foods in fifth-graders. They assign children to either an active play, passive play, or no play group and record their choices when presented with a variety of sweet and salty foods. In this study, ________ is the independent variable and ________ is the control group. A point is one-dimensionalO A. TrueO B. FalseSUBMIT Why was Ra significant to the Egyptians? Which of the following is a quadratic function?1. f(x) = 0x^2 + 3x - 62. f(x) = 3 - 4x^23. f(x) = 2^x4. f(x) = 2x + 5 Which of the following removes waste from the body through perspiration? blood kidneys skin large intestine SEREAt which temperature does the motion of atoms and molecules stop?0C0K