Which of the following best describes how the cytoskeleton and subcellular organelles interact in a cell? A) The cytoskeleton divides organelles equally during cellular division. B) The cytoskeleton helps transport materials from one organelle to another. C) The cytoskeleton protects organelles from damage caused by hydrolytic enzymes. D) The cytoskeleton provide structural support that helps hold the organelles in place.

Answer: B. Carbon Dioxide Gas

Explanation:

Carbon Dioxide is a compound. So, the correct option is (B).

A chemical compound is defined as a chemical substance made up of many identical molecules consisting of atoms of more than one chemical element held together by chemical bonds. These molecules contain atoms of only one element which are not compounds.

Compound is the substance which is made from two or more different elements joined chemically.

Examples of compounds are

1. Water [tex](H_2O)[/tex],

It is made from the elements hydrogen and oxygen

2. Table salt (NaCl)

It is made from the elements sodium and chloride.

3. Carbon Dioxide [tex](CO_2)[/tex]

It is made from the elements Carbon and Oxygen.

There are three types of compounds:

Thus, Carbon Dioxide is a compound. So, the correct option is (B).

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Answer:

you have to be more specific we don't know what you are talking about.

Explanation:

Answer:

Adaptations

Explanation:

1). "White" fur- Polar bears are well known for this adaptation, white fur. Their fur is actually clear, but gives the appearance of being white. This is so they can blend into their environment.

2). Fur and fat- They have very thick layers of fur and fat, to help keep them warm(insulate them), as their habitat is extremely cold. This prevents things like hypothermia and frostbite.

3). Large feet- Their feet are quite large, which gives them an advantage. It results in more even, spread out weight distribution, and gives them a better grip on the ice.

Here's an extra:

4). Greasy coat- Polar bears are excellent swimmers, and as a result of their swimming habits, they actually have a greasy coat. This grease is much like oils a duck or goose(or other aquatic aviary species) have. It causes water to roll off of them, meaning they're considered hydrophobic.

Answer:

C

Explanation:

The correct answer would be meat in both jars would have maggots.

If maggots were spontaneously being produced by meat, both of the meat in a sealed and opened jar would have maggots in them. A spontaneous process would happen without any external force. Hence, whether the jar is sealed or otherwise, the spontaneous appearance of maggots in a jar with meat would still happen.

The correct option is C.

Answer:

An example of a base that humans use in day to day life is things such as cleaners, a strong base is beneficial to humans in this way because it can dissolve grease and protein. On the other hand acids are very important as well because strong acids can be found in the human stomach, we would not be able to digest food without this acid presence

Explanation:

Hope this helps!

Answer:

Answer is d

Explanation:

Genetic testing can reveal changes (mutations) in your genes that may cause illness or disease. Although genetic testing can provide important information for diagnosing, treating and preventing illness, there are limitations.

Answer:

Prokaryotes explanation

Explanation:

Prokaryotes are single-celled organisms that are the earliest and most primitive forms of life on earth. As organized in the Three Domain System, prokaryotes include bacteria and archaeans. Some prokaryotes, such as cyanobacteria, are photosynthetic organisms and are capable of photosynthesis.  

Many prokaryotes are extremophiles and can live and thrive in various types of extreme environments including hydrothermal vents, hot springs, swamps, wetlands, and the guts of humans and animals (Helicobacter pylori).

Prokaryotic bacteria can be found almost anywhere and are part of the human microbiota. They live on your skin, in your body, and on everyday objects in your environment.

Prokaryotic Cell Structure

Bacterial Cell Structure

Bacterial Cell Anatomy and Internal Structure. Jack0m/Getty Images

Prokaryotic cells are not as complex as eukaryotic cells. They have no true nucleus as the DNA is not contained within a membrane or separated from the rest of the cell, but is coiled up in a region of the cytoplasm called the nucleoid.

Prokaryotic organisms have varying cell shapes. The most common bacteria shapes are spherical, rod-shaped, and spiral.

Using bacteria as our sample prokaryote, the following structures and organelles can be found in bacterial cells:

Capsule: Found in some bacterial cells, this additional outer covering protects the cell when it is engulfed by other organisms, assists in retaining moisture, and helps the cell adhere to surfaces and nutrients.

Cell Wall: The cell wall is an outer covering that protects the bacterial cell and gives it shape.

Cytoplasm: Cytoplasm is a gel-like substance composed mainly of water that also contains enzymes, salts, cell components, and various organic molecules.

Cell Membrane or Plasma Membrane: The cell membrane surrounds the cell's cytoplasm and regulates the flow of substances in and out of the cell.

Pili (Pilus singular): Hair-like structures on the surface of the cell that attach to other bacterial cells. Shorter pili called fimbriae help bacteria attach to surfaces.

Flagella: Flagella are long, whip-like protrusions that aid in cellular locomotion.

Ribosomes: Ribosomes are cell structures responsible for protein production.

Plasmids: Plasmids are gene-carrying, circular DNA structures that are not involved in reproduction.

Nucleoid Region: Area of the cytoplasm that contains the single bacterial DNA molecule.

Prokaryotic cells lack organelles found in eukaryoitic cells such as mitochondria, endoplasmic reticuli, and Golgi complexes. According to the Endosymbiotic Theory, eukaryotic organelles are thought to have evolved from prokaryotic cells living in endosymbiotic relationships with one another.  

Like plant cells, bacteria have a cell wall. Some bacteria also have a polysaccharide capsule layer surrounding the cell wall. This is the layer where bacteria produce biofilm, a slimy substance that helps bacterial colonies adhere to surfaces and to each other for protection against antibiotics, chemicals, and other hazardous substances.

Similar to plants and algae, some prokaryotes also have photosynthetic pigments. These light-absorbing pigments enable photosynthetic bacteria to obtain nutrition from light.

Binary Fission

E. coli Bacterium Binary Fission.

E. coli bacteria undergoing binary fission. The cell wall is dividing resulting in the formation of two cells. Janice Carr/CDC

Most prokaryotes reproduce asexually through a process called binary fission. During binary fission, the single DNA molecule replicates and the original cell is divided into two identical cells.

Steps of Binary Fission

Binary fission begins with DNA replication of the single DNA molecule. Both copies of DNA attach to the cell membrane.

Next, the cell membrane begins to grow between the two DNA molecules. Once the bacterium just about doubles its original size, the cell membrane begins to pinch inward.

A cell wall then forms between the two DNA molecules dividing the original cell into two identical daughter cells.

Although E.coli and other bacteria most commonly reproduce by binary fission, this mode of reproduction does not produce genetic variation within the organism.  

Prokaryotic Recombination

Bacterial Conjugation

False-color transmission electron micrograph (TEM) of an Escherichia coli bacterium (bottom right) conjugating with two other E.coli bacteria. The tubes connecting the bacteria are pili, which are used to transfer genetic material between bacteria. DR L. CARO/Science Photo Library/Getty Images

Genetic variation within prokaryotic organisms is accomplished through recombination. In recombination, genes from one prokaryote are incorporated into the genome of another prokaryote.

Recombination is accomplished in bacterial reproduction by the processes of conjugation, transformation, or transduction.

Capsule, cell wall, cell membrane, pilus, flagella, ribosomes, nucleoid, and plasmids are the parts of prokaryotic cells.

Single-celled creatures known as prokaryotes are the earliest and most basic living forms on Earth. Bacteria and archaeans are prokaryotes, which are classified according to the Three Domain System. Some prokaryotes are photosynthetic creatures and can do photosynthesis, such as cyanobacteria.

Prokaryotic bacteria are ubiquitous and comprise a significant portion of the human microbiome. They exist on your skin, inside your body, and on commonplace items in your surroundings.

Bacteria, as a sample prokaryote, its cells have the following organelles and structures:

Therefore, the capsule, cell wall, cell membrane, pilus, flagella, ribosomes, nucleoid, and plasmids are the parts of the prokaryotic cells.

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Answer:

Invasive species can change the food web in an ecosystem by destroying or replacing native food sources. The invasive species may provide little to no food value for wildlife. Invasive species can also alter the abundance or diversity of species that are important habitat for native wildlife.

I think it is because of the temperature of the earth.

If ice was the most common physical state on our earth it would be because of how cold it would be. Other way around with vapor.

Answer:

If there are answers like A) B) or C)

Explanation:

It would be pond C

Hope that helps! ^^

Answer:

Pond A

Explanation:

Pond A: Cattails, bulrushes, and water lilies grow in the pond.

Answer:

proteins, carbohydrates, lipids and nucleic acids. thank me later

Answer:

proteins, carbohydrates, lipids and nucleic acids

Explanation: hope to get a Brainliest!

hope u have a good day! :)

Answer:the number of electrons in an atom the number of neutrons in an atom the number of protons in an atom the number of bonds in an atom

Explanation:

Answer:

the number of protons in an atom

Explanation:

edge2020

Answer:

C. The use of animals in scientific research and experiments.

Explanation:

I got this answer correct when I took it.

The disruption which is not a major cause of a high extinction rate is: C. The use of animals in scientific research and experiments.

Extinction can be defined as a process or situation in which a species, family, or other taxonomic group of living organisms such as animals or plants become extinguished, destroyed, exterminated or dead.

This ultimately implies that, extinction literally means the extermination or dying out of a species, family, or other taxonomic group of living organisms.

Basically, the extinction of living organisms is mainly caused due to the effect of environmental forces and evolutionary changes such as:

In conclusion, the disruption which isn't a major cause of a high extinction rate is the use of animals or plants in scientific research and experiments because often times they are not killed and only a sample of the population is used.

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Answer: Perpendicular

Explanation:

Joint movement: This is a movement which occurs around an axis that is always perpendicular to its plane. This can also be defined a movement which usually occurs or happens in a plane and around an axis. perpendicular is used to describe the meeting angle which is usually ( 90 degrees) to the ground.

Answer:heart monitor

Stopwatch

Digital tape measure

Thermometer

Graduated cylinder

Explanation:

Measuring devices are used as follows -1. Thermometer, 2. Heart monitor, 3. Measuring cylinder, 4. Clock, 5. Tape measure

The instruments that are used for the measurements of various specific items based on the laws and the theories of measurement are called measuring devices.

Specific measurements have specific measurement devices. These measure the value based on the specific unit of the measurement.

For example, an inch tape measures the length of something in inches. It also has scales of centimetres and meters.

For the measurement of length, scales and tape measures are used.

For the measurement of time, clocks are used.

For the measurement of volumes, graduated cylinders are used.

For the measurement of temperature, thermometers are used.

Therefore, the measuring devices vary according to the function it needs to perform. In this case, 1. Thermometer, 2. Heart monitor, 3. Measuring cylinder, 4. Clock, 5. Tape measure.

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Answer:

the insulin

Explanation:

first we take the gene from human cells and we mix them together with bacterial dna.we place them in a fermentation vessel where it will then multiply. then it create the insulin which we use it for people who suffer from diabete.

(sorry im not that good in englisht)

Answer:

I'm not sure but I think is genes

Answer:

First one and third one

Explanation:

I just did it and got it right hope this helped

Answer:

Prepare solutions of different acid concentrations, measure 50 milliliters of each into different beakers, and place the same type of medication of the same mass into the beaker

Explanation:

The experiment to test the effect of stomach acid concentration on the solubility of a particular oral medication will have the following configuration;

The independent variable = The concentration of the acid to which the medication is added

The dependent variable = The solubility of the medication in the acid concentration

The constant = The medication which is added to the acid concentration

The controls = The fixed mass and type of the particular medication and fixed volume of the different concentrations of the acid samples.

Synonyms for "hysterically" include:

Antonyms for "hysterically" include:

Synonyms are words or phrases that denote the same thing in a similar way as another word or words. They are often employed to diversify writing or to use different words to communicate a notion or idea. Antonyms are words that have the exact opposite meaning of another word. They provide contrast or convey the opposite meaning of a word.

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Answer:

This energy comes from the food we eat. Our bodies digest the food we eat by mixing it with fluids (acids and enzymes) in the stomach. When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose.

Explanation:

Answer:

DNA

Explanation:

dna has a double helix structure. making it look like a spiral staircase

Answer:

option A is the right answer

hope this helped you

please mark as the brainliest (ㆁωㆁ)

Meiosis is a type of cell division that occurs in cells and this division results in a reduction in the number of parent cells by half.

A parent cell with 23 pairs of chromosomes (46 chromosomes) undergoing meiosis will result in the production of 4 cells each with 23 single chromosomes.

In meiosis, a beginning cell with 23 pairs of chromosomes (after duplication) will go through the first division separating all homologous chromosomes and giving rise to two cells with 23 chromosomes each with its own two sister chromatids.

During the second division, each of the two daughter cells produced divides and the chromosomes separate at the centromeres, with each chromatid moving to opposite pole, so four daughter cells is produced and contains 23 single chromatids/chromosomes.

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Answer:

B. Neurons

Explanation:

This is it

Answer:

Neurons

Explanation:

Basic units of the nervous system that receive, transmit, and integrate information.

Hypothesis: The soil in the flat part of the field has less fertility than the soil on the small hill.

Experiment:

The experiment will be carried out in a greenhouse, to promote a controlled environment and equal to all plants used in the treatment.

In this experiment, the influence of the difference in fertility of the soil samples, in the flat part of the land and in the most inclined part, in the germination and growth of corn plants will be tested.

Corn seeds of the same species will be selected. All seeds will be sanitized and will go through the same dormancy breaking process, so that all of them have their germination stimulated.

Vessels with a capacity of 30 kilos will be caught. These pots will be cleaned, sterilized and filled with the same amount of soil collected in the field and with two corn seeds. It will be used 10 pots with soil that was collected in the flat part of the land, 10 pots with soil from the sloping part of the land and 10 pots with fertilized substrate containing high levels of fertility.

The pots will be placed in a greenhouse and will be irrigated with distilled water, to avoid contamination by possible substances in the water.

The pots will remain in the greenhouse for 100 days, where the behavior of seeds and plants in each of them will be observed and noted. After this period, a comparison will be made between the vessels of each treatment, assessing the differences between them and reaching the conclusion whether the hypothesis is true or false.

Hypothesis: The soil in the flat part of the field has less fertility than the soil on the small hill.

Experiment:

The experiment will be carried out in a greenhouse , to promote a controlled environment and equal to all plants used in the treatment.

Procedure:

Thus after this experiment we can conclude that whether hypothesis matches with the experiment.

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Answer:

Primary Succession is when an uninhabited area becomes an ecosystem, and Secondary secession is when an ecosystem is destroyed an Independent factor, like a fire, a hurricane, stuff like that.

Explanation:

Clear-cutting climate change would be an example of Secondary Secession, and volcanic eruption introduced species would be an example of Primary Secession.

Primary succession occurs when new land is formed or bare rock is exposed, providing a habitat that can be colonized for the first time.

The event that may lead to Primary succession is:  volcanic eruption

The main causes of ecological succession include the biotic and climatic factors that can destroy the populations of an area. Wind, fire, soil erosion and natural disasters include the climatic factors.

Lava from a volcanic eruption hardens into bare rock. Primary succession begins with soil formation. The first stage of succession involves pioneer species. In primary succession, pioneer plants are those that can grow without soil, such as lichens.

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Answer:

1. THE DESERTS -DEFINITION. -FEATURES. -BIOTIC AND ABIOTIC FACTORS THAT INFLUENCE DESERT BIOME. -MOST REPRESENTATIVE DESIERTS IN OUR PERU. DELGADO ENVIRONMENT ELERA, REYNER San José de Moro, September 2014

2. DESERT  A desert is an area of ​​the earth's surface totally or almost totally uninhabited.  A desert can be a sandy or stony terrain that lacks vegetation due to low rainfall.  The harsh environmental conditions mean that these deserts have little stable population DELGADO ELERA, REYNER. CHARACTERISTICS OF THE DESERTS.  Temperatures are generally high, but nights can be cold.  Its climate is extreme with temperatures of 50 ° C during the day and –20 ° C at night.  It is the ecosystem that presents water scarcity.  The ground is covered with sand as a result of the disintegration of rocks. The relief presents plains, dunes and in some places oases.  There are counter winds and rains are very scarce.  Deserts form the largest area of ​​the earth's surface. BIOTIC AND ABIOTIC FACTORS THAT INFLUENCE DESERT BIOMA  BIOTIC FACTORS THAT INFLUENCE DESERT BIOME These are the living beings of an ecosystem that survive. They can refer to the flora, fauna, humans of a place and their interactions. Individuals must have specific behavior and physiological characteristics that allow their survival and reproduction in a defined environment. The condition of sharing an environment engenders a competition between species, given by food, space, etc. Depending on the region: In the desert only some animals manage to survive: camels, lizards, spiders, owls, rats, kangaroo, mice, a variety of snakes, hawks, scorpions, birds, squirrels among others. In the same way, in the fauna, only some plants manage to survive. These protect themselves from other animals with the thorns they have and with their thick layer of skin, some of them are: cactus, palm trees, nopales, bushes, grasslands, weeds in oases, etc.

3. Plants and animals that live in the desert are conditioned to withstand extreme temperatures with minimal water.  ABIOTIC FACTORS THAT INFLUENCE DESERT BIOME Abiotic means lifeless. They are the different components that determine the physical space in which living beings inhabit; among the most important we can find water, temperature, light, soil, humidity, air and nutrients. They are the lifeless factors. Deserts are known for their extreme abiotic factors. Varied temperature and scarce fluvial precipitation. Sunlight, climatic factors such as: humidity (very low) and temperature (high during the day, very low at night); rocks, sand or very dry soil, atmospheric gases, very strong barometric pressure. Rocky terrain, wind processes are important factors in the formation of the landscape. They have an average rainfall of 200 to 500 mm per year. MOST REPRESENTATIVE DESERTS OF PERU 1. DESERT OF SECHURA  One of the most representative deserts of Peru is that of Sechura, located in the northwest of Peru, just between the Lambayeque and Piura regions having a length of 150 kilometers by a width of 100. It is located 55 km southwest of the city of Piura. It is the widest area of ​​the coastal desert in Peru, it has an area of ​​more than 5000 square km.  This desert is an arid plateau formed by materials from the Tertiary, with little vegetation, which includes several intermittent lagoons. The aridity of the climate and the unproductive soils limit the settlement of the population, except in the oases that constitute the mouths of the Piura rivers, to the north, and Lambayeque, to the south; agriculture is possible in these areas. DELGADO ELERA, REYNER

Explanation:

Answer:

its sand ok that the an6