Nucleic acids are made up of a sugar, a nitrogenous base, and a _________ group.


A.phosphate
B.cellulose
C.substrate

I believe it'd be on the Prime Meridian

Answer:

The correct answer is on the prime meridian.

Explanation:

Antarctica is the southernmost continent which is one of the coldest places on the earth.

The prime meridian is an imaginary line of longitude which divides the earth in the western and eastern hemisphere. the longitude at the prime meridian is 0° with a length of 20,000 km from pole to pole.

In northern hemisphere passes through countries like the UK, France, Spain and many others but in the southern hemisphere, it passes through only Antarctica continent.

Thus, option on the prime meridian is the correct answer.

Answer:

(b) Global climate is complex, so changes in global climate are hard to predict.

Explanation:

edg 2020

The theory about the effect of global warming is Global climate is complex, so changes in global climate are hard to predict. The correct option is b.

Global warming is a natural cause that is happening due to the trapping of greenhouse gases in the atmosphere. This happens when the rays from the sun come to earth, but the radiations are trapped in the atmosphere and increase the warmth of the earth.

The layers of pollution and the gases are increasing, and they are trapping the warmth and increasing the temperature of earth. The increased temperature is causing many destructed disasters to nature and people.

Thus, the correct option is b. Global climate is complex, so changes in global climate are hard to predict.

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The answer is A. Small weeds began to grow and develop

Hi there!

The major structure for a neuron is,

D). Axon, cell body, and dendrites.

Hope this helped!~

The major structures of a neuron are the cell body, dendrites, and axon. The cell body contains the nucleus, dendrites extend from the cell body to receive signals, and the axon transmits signals away from the cell body. The correct answer is D. Axon, cell body, dendrites.

The major structures of a neuron include the cell body, dendrites, and axon. The cell body, sometimes referred to as the soma, contains the nucleus and other essential organelles for the neuron's function. Dendrites are extensions that branch off from the cell body receiving signals from other neurons, while the axon is a longer extension that carries nerve impulses away from the cell body to other neurons or muscles. At the end of the axon, axon terminals, or synaptic boutons, allow communication with other cells. The correct answer to the student's question, identifying the major structures for a neuron, would therefore be D. Axon, cell body, and dendrites.

Conclusion. This is after everything you want to be adjusted has been done so, and everything is as accurate as can be. Hope it helps! :)

The final summary of data and results, which typically summarizes the study's findings and signifies their meaning in the context of the study's objectives, is called the Conclusion.

The final summary of the data and results in a research or scientific study is often referred to as the Conclusion.

In this portion, you typically recap the data and findings of the study in a precise and compact manner, drawing inferences from the data to indicate what they mean in the context of the study's objectives.

It's essential as it presents your final thoughts on the topic, based on the study's results.

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To produce an electric current, three things are needed: a supply of electric charges (electrons) which are free to flow, some form of push to move the charges through the circuit and a pathway to carry the charges. The pathway to carry the charges is usually a copper wire.

Answer: The correct answer is "electromotive force".

Explanation:

If the battery is connected to the conductor which makes the flow of the electric charge. Battery forces the charges to flow. The rate of flow of charges constitutes the electric current.

The electromotive force is required for an electric charge to flow through a wire. Here, it is provided by the battery.

Battery allows the flow of electrons between cathode and anode. The cathode is at lower potential and the anode is at higher potential. The charges flow from lower potential to the higher potential.

Therefore, battery is required which provides electromotive force for an electric charges to flow through a wire.

Answer: A. how shiny each mouse's fur is

Explanation:

In experimental procedure, the independent variable in the experiment is the variable which can be altered, manipulated or changed in order to observe the impact of this process over the dependent variable which is the result of the experiment.

A. is the correct option as it depends upon the amount of food he feeds a mouse. More clearly, here food is the independent variable and shiny fur is the dependent variable.            

The correct answer is: b) directional selection

Directional selection is a type of natural selection in which an extreme phenotype is favored over other phenotypes. In this case, phenotype of large crickets will be favored, because they cannot be eaten by lizards. Large crickets are advantageous in surviving and reproduction. This will cause the allele frequency to shift over time in the direction of that large size phenotype.

Answer:

b) Directional selection  

Explanation:

Direction selection is the phenomenon in which a population’s genetic variance changes with respect to environmental changes to select a new phenotype. In this case, the size of cricket, the food source acts as the selection factor for the phenotype, the size of the lizard’s mouth.  

In order to accommodate the food source, a single phenotype of mouth size changes and the respective allele is favoured. Correspondingly, the allele frequency will shift unilaterally in one direction only.  

The increased frequency of the particular allele ensures a higher survival rate of the lizard. The population evolves towards the favoured phenotype.

Answer: A form of asexual reproduction used by bacteria

Explanation:

Binary fission is a form of asexual reproduction used by bacteria to carry out cell division. The results is the cell division used as a method of propagation of the original cell to produce two new cells. The bacteria duplicates its genetic material and then divides into two parts, with each new organism receiving one copy of it. So binary fission creates identical daughter cells.

The steps involved are:

The correct options are:

Anything which has mass and occupies shape is a matter. Matter is composed of particles. The particles of matter are very small in size and they  attract each other. There is space between the particles. The particles are in continuous random motion, thus they have kinetic energy. on absorbing energy their movement increases.  

Answer:

B + C +D

Explanation:

B) Matter is made of small particles.

C) Matter's particles are in constant random motion or vibration.

D) There is empty space between matter's particles.

(P.S. I just took a test on this and got it correct.)

Water is important for maintaining good health because it is involved in many of the body's functions. Dehydration can occur when the body does not get enough water.

Here are some of the ways in which water helps to keep us healthy:

Regulates body temperature: By transferring heat away from the body's center and evaporating off the skin, water helps to control body temperature.

Moistens tissues: Water helps to keep tissues wet, including those in the mouth, nose, eyes, and throat. By doing this, you can keep them from drying out and being itchy.

Protects organs and tissues: By cushioning organs and tissues and keeping them from rubbing against one another, water helps to protect them.

Carries nutrients and oxygen to cells: Water helps the body's cells transport nutrients and oxygen by carrying these substances to them.

Removes waste products: Urination, sweating, and bowel motions are ways in which water aids in the removal of waste from the body.

Lubricates joints: Water aids in lubricating joints, which helps to lessen friction and discomfort.

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H2O, also known as water.

Oxygen, as the last electron acceptor in cellular respiration, reacts with Hydrogen ions and electrons to form Water. This is important in creating ATP, the cells' main energy source.

In Cellular Respiration, Oxygen is the final electron acceptor. It combines with Hydrogen Ions and electrons that have travelled down the Electron Transport Chain, to form Water (H2O). This process occurs in the Mitochondria - specifically in the inner membrane. This reaction also aids in the production of ATP (Adenosine triphosphate), the energy currency of the cell.

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A because this is where the pollen is. so when bugs stand on here they take the pollen somewhere else and by accident they spread it. I hope this helps :}

Flowers reproduce sexually through pollination. Flowers have male stamens and female pistils. The component of the stamen known as the anther is the part that houses the pollen grains. Therefore, option (A) is correct.

Pollination is the process that allows flowering plants to carry out their sexual reproduction.

In flowering plants, sexual reproduction requires the development of distinct male and female gametophytes, which are responsible for the production of gametes. Pollen grains, which are male gametophytes, are produced by the anthers of the plant. The grains of pollen adhere to the stigma at the top of a carpel, which is the part of the reproductive structure that contains the female gametophytes (ovules).

Therefore, option (A) is correct.

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because a glucose molecule is to large to pass through a cell membrane cells assist glucose diffusion through facilitated diffusion and two types of active transport.

The process of facilitated diffusion is most likely used to transport glucose into muscle cells as it does not use energy and is helped along by specific carrier proteins in the cell membrane.

The process most likely used to transport glucose into a muscle cell is facilitated diffusion. This process involves specific carrier proteins in the cell membrane that bind to glucose to allow its passage into the cell. These proteins are used because, even though glucose is small in nature, the polar hydroxyl groups (-OH) attached to the glucose molecule prevent it from easily passing through the nonpolar lipid bilayer of the cell membrane.

The process does not require energy as facilitated diffusion is a type of passive transport, moving from a higher concentration (outside the cell) to a lower concentration (inside the cell). Thus, glucose can enter most body tissues, including muscle cells, without the use of energy.

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I think that the answer is sedimentary rocks

The related substances to natural gases are dead and decaying plants and animals, and volcanic eruptions whereas sedimentary rocks are related. Therefore, option "C" is correct.

There are three types of fossil fuels: petroleum, coal, and natural gas.

Petroleum: it is a liquid-state fossil fuel. The uses of petroleum are the generation of electricity and lubricants. Coal: it is a solid-state fossil fuel. The uses of coal are the generation of electricity and carbon fibers.

Natural gas: it is a gaseous state fossil fuel. The uses of natural gas are glass making, steel production, and industrial incineration.

Therefore, fossil fuels require millions of years to form. Coal, petroleum, and natural gas are types of fossil fuels.

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The gaps between neurons are called the synapse.

Answer:

A

Explanation:

we know thay the earths mantle is a semi solid and the outer core is a liquid, and the difference in densities, size, boundaries etc because of the behavior of certain seismic waves

Clouds are formed when;

D. Water vapor in the air condenses to form liquid water or ice

Clouds form when warm and moist air rise and expands in the atmosphere. Water vapor condenses  into small pieces of dust, which later conjoins to form a cloud.

The nuclear envelope, also known as the nuclear membrane, [a] is made up of two lipid bilayer membranes which in eukaryotic cells surrounds the nucleus, which encases the genetic material. The nuclear envelope consists of two lipid bilayer membranes, an inner nuclear membrane, and an outer nuclear membrane. The space between the membranes is called the perinuclear space.

Scientific methods are very important for experiments and to explore hypothesis.

Without it we wouldnt even know what the moon is or other planets in this galaxy, scientific method is important to explore and learn the beauty of this planet and galaxy

Ebola virus disease is a rare and deadly diseases in people and nonhuman primates.

The answer is Gene Pool. :)

Mitosis is the process by which a cell (more strictly the nucleus of a cell) divides into two.

some cyano bacteria  carry out the convertion of gasious nitrogen to biological useful form of nitrogen .

Answer:  The correct answer is:  

__________________________________________________

                    " nitrogen-fixing " .

__________________________________________________

      " Nitrogen-fixing bacteria carry out the conversion of [gaseous nitrogen] to [biologically useful form of nitrogen.]. "

__________________________________________________

Hope this helps!

    Best wishes to you in your academic endeavors

             — and within the "Brainly" community!

__________________________________________________

he given isotope is bismuth 208. The atomic number of bismuth is 83 therefore the number of protons is 83. When bismuth loses one proton it results in the element lead with only 82 protons. The mass number is the total number of protons and the total number of neutrons. So on losing proton  bismuth becomes lead and on gaining neutron the mass number does not change and remains as 208. Therefore it reduces to lead but the mass number remains the same.

Therefore the answer is B. Bismuth on losing one proton and on gaining a neutron it becomes Lead 208.

The carbon cycle explains how carbon travels between the atmosphere, biosphere, hydrosphere, and geosphere. This complex cycle involves rapid carbon exchanges amongst living organisms and slow, long-term exchanges via geological processes. The increased use of fossil fuels has also contributed to increases in atmospheric carbon dioxide, impacting climate change.

The carbon cycle describes how carbon moves through the atmosphere, biosphere, hydrosphere, and geosphere. Carbon is the fourth most abundant element in living organisms and plays a crucial role in the structure of macromolecules. The carbon cycle is a complex process that can be studied as two interconnected sub-cycles: one dealing with the rapid carbon exchange among living organisms and the other dealing with the slow, long-term cycling of carbon through geologic processes.

Carbon is stored in carbon reservoirs which includes the atmosphere, bodies of liquid water (mostly oceans), ocean sediment, soil, land sediments (including fossil fuels), and the Earth's interior. Living organisms are also part of the carbon cycle through the exchange of carbon dioxide between autotrophs (which need carbon for photosynthesis) and heterotrophs (which release carbon dioxide).

Fossil fuels, which are a form of stored carbon, have been increasingly used since the Industrial Revolution, resulting in an increase in atmospheric carbon dioxide, a factor associated with climate change.

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The Carbon Cycle describes the movement of carbon through the atmosphere, biosphere, hydrosphere, and geosphere. It involves two interconnected sub-cycles related to living organisms and geologic processes, and includes the involvement of autotrophs and heterotrophs in a continuous exchange of carbon dioxide and oxygen. The increase in carbon dioxide due to burning of fossil fuels since the Industrial Revolution is a major environmental concern worldwide.

The phrase which describes how carbon moves through the atmosphere, biosphere, hydrosphere, and geosphere is the Carbon Cycle. This cycle involves two interconnected sub-cycles: one dealing with rapid carbon exchange among living organisms, and the other handling the long-term cycling of carbon through geological processes. Carbon is stored for lengthy periods in carbon reservoirs which include the atmosphere, bodies of liquid water (mostly oceans), ocean sediment, soil, land sediments, including fossil fuels, and Earth's interior.

Partners in the biological aspect of the carbon cycle are the autotrophs and the heterotrophs. Autotrophs build high-energy carbon compounds, and heterotrophs acquire these compounds by consuming autotrophs. The cycle also involves a constant exchange of oxygen and carbon dioxide between the autotrophs and heterotrophs, connecting all living organisms on Earth.

On a global scale, the burning of fossil fuels since the start of the Industrial Revolution has significantly increased the amount of carbon dioxide in our atmosphere. The rise in carbon dioxide levels has been linked to climate change and is a leading environmental concern all over the world.

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1) could improve the delivery of oxygen to the muscles

Because such blood cells carry oxygen from the lungs to the muscles, a higher concentration in the blood can improve an athlete’s aerobic capacity and endurance.

Blood doping can enhance the delivery of oxygen and nutrients to cells and encourage the healing of muscles, potentially improving athletic performance. However, it is illegal and can have serious health consequences.

An athlete might believe that there is a benefit to blood doping with red blood cells for several reasons. Firstly, blood doping could improve the delivery of oxygen to the muscles. This is due to the main function of red blood cells (RBCs) which have a protein called hemoglobin, capable of carrying up to a billion molecules of oxygen per cell. This oxygen can then be used by muscles for aerobic respiration, enhancing the athlete's performance.

Secondly, blood doping could potentially help deliver necessary nutrient molecules to the cells. The additional RBCs will carry not only oxygen, but also other nutrient molecules needed for cell functioning. However, it's important to note that this practice is considered illegal in virtually all sports.

Finally, substances like erythropoietin (EPO) and human growth hormone (hGH) can be used as part of a blood doping strategy, as they stimulate the production of RBCs and promote the healing of muscles respectively. However, misuse can result in severe health consequences including infections and even death.

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Out of these answer choices food only travels trough the D) Stomach; small intestines

Answer:

D

Explanation: