Which of the following describes how oxygen moves during respiration?

Answer:

Mostly crows, robins, and jays were the first of a few bird species impacted by the West Nile Virus when it was detected.

No, there were over 300 species discovered to be affected by the virus, these were just the main ones to be impacted.

''The movement of chloroplasts is due to the movement of cytoplasm in the living cells of bean plants'' is the correct statement.

The above statement is correct because chloroplast is an organelle which moves in the cell through the medium known as cytoplasm. Cytoplasm is a thick fluid that fills every type of cell and organelles are floating as well as suspended in this fluid.  

All organelles such as the nucleus, endoplasmic reticulum, chloroplast and mitochondria etc are located in the cytoplasm. The portion of the cytoplasm except the organelles is called cytosol so we can conclude that chloroplast is an organelle which moves within the cell with the help of cytoplasm.

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Answer:

When fluids (liquids and gases) are heated, they expand and therefore become less dense. Any object or substance that is less dense than a fluid will float in that fluid, so hot water rises (floats) in colder water.

Explanation:

When you heat up water, the water molecules start moving around faster and faster. ... So hot water is less dense than cold water. When you put the two together with the hot water on the bottom, the hot water rises to the top.

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survival of the fittest is the test of adaption which in turn aides in the process of evolution

Explanation:

Answer:

A close, interdependent relationship between two organisms is called SYMBIOSIS . There are three main types of symbiotic relationships. In MUTUALISM, both organisms benefit from the relationship. When one organism benefits but the other is harmed, their relationship is called PARASITISM. Occasionally, two organisms have a relationship where one organism benefits and the other is neither hurt nor helped. This type of relationship is called COMMENSALISM.

The type of relationship where one organism benefits and the other is neither hurt nor helped is called commensalism.

In biology, commensalism is a connection between members of two different species in which one species uses the other for food or other purposes without causing the other any damage or gaining anything in return.

The commensal, or species that gains from the connection may take resources from the host species, which is unharmed, or find refuge, support, or means of movement. Frequently, a bigger host and a smaller commensal are in a commensal relationship.

The commensal species may exhibit significant morphological adaptation, whilst the host organism is virtually unaffected by the contact. Contrasting this connection with mutualism, which benefits both species,

A well-known illustration of a commensal is the remora (family Echineidae), a fish that travels in close proximity to sharks and other fish. Remoras have developed a flat, oval-sucking disc structure on top of their heads that cling to the bodies of their victims.

Remoras and pilot fishes both eat the leftover food from their hosts. Bird species like the magnificent egret (Ardea alba), which feeds on insects discovered by grazing animals or on soil creatures stirred up by plows, are other instances of commensals.

Therefore, this type of relationship is called commensalism.

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Answer:

I would go with C.

Explanation:

Macromolecules contain carbon, hydrogen, and oxygen. option A correctly describes the macromolecules.

Macromolecules are two or more atoms connected by chemical bonds.  Macromolecules contain carbon, hydrogen, and oxygen.

Carbon, hydrogen, and oxygen are essential for carbohydrate formation. Lipids are water-insoluble that are critical for cell functions. Nitrogen is used to build nucleic acids.

Carbon, hydrogen, and oxygen are 96 percent in nature. Calcium, phosphorus, and potassium are major elements. Boron, iodine, and silicon are 0.5 % in nature. Carbohydrates represent group of substance which include starch, sugars and cellulose.

Therefore, Macromolecules contain carbon, hydrogen, and oxygen. option A correctly describes the macromolecules.

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Answer:

50 million nucleotide pairs

The typical human chromosome contains 50 million nucleotide pairs

in its DNA.

Deoxyribonucleic acid (DNA) is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid (RNA) are nucleic acids. Alongside proteins, lipids and complex carbohydrates (polysaccharides), nucleic acids are one of the four major types of macro molecules that are essential for all known forms of life.

Hence, The typical human chromosome contains 50 million nucleotide pairs.

in its DNA.

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Answer:

D.) To support separate education

Explanation:

Answer:

B

To unify Americans to gather in non-violent protest to bring about real, actionable change

Explanation:

Originally conceived as a mass demonstration to spotlight economic inequalities and press for a new federal jobs program and a higher minimum wage, the goals of the march expanded to include calls for congressional passage of the Civil Rights Act, full integration of public schools, and enactment of a bill prohibiting ...

Answer:

This would be Metaphase. I hope this helps you! :)

Answer:

Its width.

Explanation:

The size of pyrimidines and purine is different because each group has a different structure (1 or two rings). Therefore, the width of DNA is "constant".

If we would pair two pyrimidines or two purines, the width of DNA would be different in both cases.

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Answer:

The cells divide in order to replace the old and damaged cells, and so that the body of the living being can grow

Explanation:

Answer:

The skin cells prevent germs from coming in our bodies. Skin cells are very easily removed, so it needs to reproduce faster.  Every single person both young and old has new cells every second replacing the old and dead cells in your body.

explain : Changes in temperature and humidity: skin helps to regulate body temperature, control moisture loss and maintain the balance of fluids. Pressure, blows and abrasion: skin recognises pain and alerts us to danger. It acts as a barrier and shock absorber.

Active transport occurs against the electrochemical gradient. It needs energy to move molecules from the lower concentration side to the higher concentration side. The mode of transport is active transport.

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There are three main different types of transport across the membrane

Active transport is the transport of molecules that move against the electrochemical gradient, so it does need energy to happen.

Molecules move from the lower concentration side to the higher concentration side of the membrane.

Carrier proteins are in charge of active transport. The needed energy might proceed from the ATP molecules or the membrane's electric potential.

In the exposed example, a scientist wants to determine how substance L enters a cells in a culture.

Table 1. Rate of entry of substance L into mammalian cells in culture

External concentration of substance(mM)      Rate of entry of substance L

                     10                                                                     5%

                     20                                                                    25%

                     30                                                                    45%

                     40                                                                    65%

                     50                                                                     80%

                     60                                                                     90%

                     70                                                                      95%

                      80                                                                    100%

                      90                                                                    100%

                      100                                                                   100%

Now, we need to identify the most likely mode of transport across the membrane for substance L, and explain how information provided helps determine the most likely mode of transport.

We know that the intracellular concentration is 120mM.

As we can see, this concentration exceeds all of the culture media concentrations. Yet, the substance keep moving into the cell.

As the concentration inside the cell is always higher than the concentration outside, we can assume that this is not passive transport because the molecule transport is going against its concentration gradient.

Hence, the remaining option is active transport. And as said before, we can see it because the substance keeps crossing the membrane toward the cell interior despite its concentration being higher in the interior of the cell than in the exterior.

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Answer:

D. Lung cells

Explanation:

There are many organizations of living things and parts of living things. From simplest to complex the levels are: cells, tissue, organ, system, organism. So, if you have lung tissue then the only simpler organization is cells. These are simpler because cells are what make up tissue, just as tissue makes up organs. Through the levels, the more simple something is then the smaller it is, relatively.

Answer:

B.) Stems, roots, flowers

Explanation:

Answer:

coracobrachialis muscle

Answer:

A. po

Explanation:

kadi i dont know sorry

Answer:

freeze and sink over and over until the entire lake was frozen.

Explanation:

This would eliminate many aquatic organisms and produce a system with far fewer life forms in lakes which freeze periodically.

In basidiomycete fungi, the nuclei from parents combine in the BASIDIA to make offspring spores. Basidia are microscopic structures but they are generally produced on large fructifications known as fruit bodies.

A basidium is a sporangium localized on the hymenophore of the fruiting bodies in basidiomycete fungi.

In basidia, the nuclei of two parental strains fuse by karyogamy and then divide to reproduce basidiospores.

A basidium generally contains four sexual spores known as basidiospores.

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Answer:

Process A is diffusion

- diffusion is the random movement of molecules from the area where there is more of them to an area where there is a few of them without the input of energy.

Process B is facilitated diffusion

- facilitated diffusion is the transport of substances across a cell membrane from an area of higher concentration to a lower concentration with the help of Transport protein

Process C is active transport

- A ctive transport is when an input of energy is required to move materials through a cell membrane .

Answer: B: an increase in rain

Explanation:

Answer:

an increase in rain

Explanation:

Answer:

If the freshly created metamorphic rock is exposed to enough heat, it may melt and become molten (magma). Igneous rock is formed when molten rock cools. Sedimentary and igneous rocks can both create metamorphic rocks.

The process that would change metamorphic rock to igneous rock is to treat metamorphic rock at extremely high temperatures and pressure that effectively transform it into a molten state. And this molten magma cools and crystallizes completely giving rise to the production of igneous rock.

Metamorphic rock may be defined as a type of rock that is significantly obtained due to the series of alterations in the pre-existing rocks. These alterations emerge due to changes in environmental conditions.

According to the context of this question, igneous forms are synthesized when the molten metamorphic rock cools and crystallizes due to the result of volcanic eruptions and melted rock inside the earth's crust. This happens due to the generation of extremely high temperatures and pressure.

Therefore, the process of formation of igneous rock from metamorphic rock is well described above.

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Answer:

Most life on Earth depends on photosynthesis.The process is carried out by plants, algae, and some types of bacteria, which capture energy from sunlight to produce oxygen (O2) and chemical energy stored in glucose (a sugar). Herbivores then obtain this energy by eating plants, and carnivores obtain it by eating herbivores.

Explanation:

Enzymes help weaken these bonds so energy can be released and then later help reform them.

that's the answer

ADP (adenosine diphosphate) is formed when these high-energy connections between the phosphate groups at the end are broken, releasing energy for the cells to utilize.

One phosphate group is left on its own, these powerful associations may be broken and rebuilt with the aid of enzymes.

When a third phosphate is added to the ADP molecule, reforming ATP, water that was broken down into its hydrogen atom and hydroxyl group during ATP hydrolysis is recovered.

Energy must be introduced into the system to regenerate ATP, ADP develops and energy is released for the cells to utilize when these connections are broken.

Therefore, ATP has the capacity to store and transmit chemical energy, high-energy bonds are used to link the final two phosphate groups.

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Answer:

cellulose

Explanation:

lipids are fats oils or waxes. cellulose is a fiber

Answer:

cellulose    

Explanation:

Examples of lipids include fats, oils, waxes, certain vitamins (such as A, D, E and K), hormones and most of the cell membrane that is not made up of protein. Therefore waxes are not the answer.

Steroids are lipids because they are hydrophobic and insoluble in water, but they do not resemble lipids since they have a structure composed of four fused rings. Cholesterol is the most common steroid and is the precursor to vitamin D, testosterone, estrogen, progesterone, aldosterone, cortisol, and bile salts. Therefore steroid and cholesterol is not the answer.

Answer:

B. 0.1

Explanation:

Trust me

Answer:

(b) 0.1 m

Explanation:

edge 2022

The type of light that could cause skin cancer is the ultraviolet (UV) light rays. The following reasons are further explained why they harm the skin.

The ultraviolet light is a type of electromagnetic radiation that possess a shorter wavelength than the visible light.

The solar radiation from the sun that reaches the earth planet is made up of the following:

The ultraviolet light is harmful to the skin when exposed to it for a long time. This can damage the DNA of the skin cells which can lead to abnormal proliferation or uncontrolled growing of the cells which eventually causes cancer.

Therefore, the type of light that could cause skin cancer is the ultraviolet (UV) light rays.

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Answer:

Controlled study:

We conducted a controlled study on the two plants.

Environmental ethics:

The man over there is all business he talks of social and environmental ethics.

Explanation:

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Answer:

Aerobic bacteria can be used to use the available oxygen in the water to degrade the pollutants in the waste and convert it into energy it can use for its metabolic processes.