the vital capacity, or maximal amount of air that one can move, is the sum of ________.

Answer:

C. The molten Earth released hydrogen and helium into the atmosphere.

Explanation:

Today's atmosphere is that the molten Earth released hydrogen and helium into the atmosphere due to past sphere interactions.

Answer:

one sperm fertilizes the egg cell, forming a diploid zygote

Explanation:

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In angiosperm double fertilization, one sperm nucleus fertilizes the egg to form the diploid zygote, and a second sperm nucleus fuses with the two nuclei in the central cell of the embryo sac.

The egg is the female gamete in an angiosperm. It is a haploid cell that contains one set of chromosomes. The zygote is the fertilized egg. It is a diploid cell that contains two sets of chromosomes. The zygote will eventually develop into an embryo. The central cell is a cell in the embryo sac that contains two haploid nuclei.

Double fertilization is a unique feature of angiosperms. It is a type of fertilization in which two sperm nuclei fertilize two different cells in the embryo sac. The first sperm nucleus fertilizes the egg to form the zygote. The second sperm nucleus fuses with the two nuclei in the central cell to form a triploid cell. This triploid cell will eventually develop into the endosperm, which is a food reserve for the developing embryo.

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Answer:

Faster rabbits will survive and reproduce increasing the average speed of the rabbit population.

Explanation:

Hemoglobin: The high iron-containing protein in red blood cells (RBCs) is known as hemoglobin. This gives the blood a red color.

It has two main functions: it carries oxygen from the lungs to tissues of the body, and it carries carbon dioxide from cells back to the lungs for excretion.

Functions of hemoglobin:

Consequences of hemoglobin deficiency:

Hemoglobin deficiency reduces the blood's oxygen-carrying capacity.

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The volume of Arwan’s piece of quartz is 303.42 cm³

Volume is described as a measure of occupied three-dimensional space or the amount of space that a substance or object occupies, or that is enclosed within a container.

Mass of the Quartz piece brought by Arwan = 788.9 g

Density of the quartz = 2.6g/ cm³

Density of the substance is described as mass present in per unit volume of the substance. It is measured in gram per centimeter cube.

Density = mass/volume

2.6 = 788.9/ volume

volume =  303.42  cm³ .

Density is denoted as mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume.

Density has the units of measurement in mass divided by volume such as grams per centimeters cube (g/cm3) or kilograms per liter (kg/l)

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The complete question is:

Arwan finds a piece of quartz while hiking in the mountains. When he returns to school, he takes it to his science teacher. She helps him determine the mass to be 788.9 g. She also tells Arwan that the density of quartz is 2.6 . What is the volume of Arwan’s piece of quartz?

Low-density lipoproteins (LDL) are the principal transport vehicle for cholesterol in the blood.

The body needs cholesterol, a waxy, fatty molecule, in the proper proportions for overall health. High blood cholesterol is a disorder that can result from unfavorable cholesterol levels. Low-density lipoprotein (LDL), also known as "bad" cholesterol, is the type of lipoprotein that carries cholesterol in your blood.

Cholesterol is primarily brought on by consuming fatty foods, failing to exercise regularly, being overweight, smoking, and using alcohol. Moreover, it can run in families. By consuming a healthy diet and increasing your physical activity, you can lower your cholesterol. Some folks also require medication. The majority of the cholesterol in your body is LDL (low-density lipoprotein), also referred to as "bad" cholesterol. Your risk of heart disease and stroke increases if your LDL cholesterol levels are high.

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The condition you're describing is likely a severe form of otitis media, a middle ear infection. This infection can result in fine cracks in the delicate bones of the middle ear, leading to structural damage .

Additionally, it can destroy the hair cells in the organ of Corti, which are responsible for translating sound vibrations into electrical signals. This damage can cause a rupture in the eardrum, leading to pain and potential hearing loss. The infection can also result in severe inflammation of the auditory canal and further complications such as degeneration of the auditory nerve, which can significantly impact a person's ability to hear and perceive sound accurately. This infection can result in fine cracks in the delicate bones of the middle ear, leading to structural damage and impaired hearing.

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Answer:

C I hope I'm right........

..............

Answer:

Explanation:

Because all energy comes from plants, in terms of the macromolecules. The energy from the plants moves up through the tropic levels. It could also help the higher tropic levels with structural support.

Answer: Replacing fossil fuels with biofuels has the potential to reduce some undesirable aspects of fossil fuel production and use.

Explain:

Fuels produced from renewable organic material possibly have the potential to reduce some undesirable aspects of fossil fuel production and use, including conventional and greenhouse gas (GHG) pollutant emissions, exhaustible resource depletion, and dependence on unstable foreign suppliers also. -i hope this helped :)

Explanation:

The majority of mutations have neither negative nor positive effects on the organism in which they occur. These mutations are called neutral mutations. Examples include silent point mutations. They are neutral because they do not change the amino acids in the proteins they encode.

Many other mutations have no effect on the organism because they are repaired beforeprotein synthesis occurs. Cells have multiple repair mechanisms to fix mutations in DNA. One way DNA can be repaired is illustrated in Figure below. If a cell’s DNA is permanently damaged and cannot be repaired, the cell is likely to be prevented from dividing.

Pus is the remains of leukocytes killed while fighting foreign antigenic entities.

Pus is a thick, yellowish-white fluid that forms in infected tissues as a result of the body's immune response to an invading pathogen. The body sends white blood cells, or leukocytes, to the site of infection to fight the pathogen.

As the leukocytes attack the pathogen, they become overwhelmed and die, releasing their contents into the surrounding tissue. Pus is primarily composed of these dead leukocytes, along with other debris from the site of infection. It is often associated with inflammation and can be a sign of an ongoing infection.

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Complete Question:

What is pus?

Answer:

The cell cycle is the replication and reproduction of cells, whether in eukaryotes or prokaryotes. It is important to organisms in different ways, but overall it allows them to survive. ... Plants require the cell cycle to grow and provide life for every other organism on earth.

pls give me brainless.

Answer:The cell cycle is the replication and reproduction of cells, whether in eukaryotes or prokaryotes. It is important to organisms in different ways, but overall it allows them to survive. ... Plants require the cell cycle to grow and provide life for every other organism on earth.

Explanation:

Answer: The skeletal system works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs and stores minerals. The skeletal system is also called the musculoskeletal system.

Explanation:

The correct option for the given question is d. the na channel becomes inactivated and refractory to reopening for a short time after the action potential passes. The action potential is a rapid change in voltage across the membrane of a cell which is associated with the passage of an impulse along a neural or muscle fiber.

The opening of voltage-gated Na+ channels causes depolarization, which is an increase in membrane potential, due to the inward movement of Na+ ions. A nerve impulse arises when an excitatory stimulus causes the neuron membrane to depolarize beyond the threshold potential, and Na+ channels open to cause a large influx of Na+ ions into the cytoplasm of the axon.

These ion channels can also inactivate and become refractory to reopening for a short time after the action potential passes. This phenomenon is known as refractoriness, which prevents the action potential from reversing its direction and returning to its origin.

The refractory period is the time it takes for the Na+ channels to reset themselves after depolarization and to allow new action potentials to be propagated in only one direction. Thus, the action potential propagates in only one direction by the Na+ channel becoming inactivated and refractory to reopening for a short time after the action potential passes.

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The various methods to control hazards and risks are using standard tools and equipment, working in the presence of expert and working in authorized labor conditions.

Hazards are the unintentional accidents which may cause loss of life and property. Risks are the abrupt conditions which occur and has the potential to cause damage.

The ten different ways to control hazards and risks are:

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Mutualism is an ecological connection between two or more species when each species benefits in some way from the interaction. Mutualism is an illustration of a typical ecological relationship.

The most frequent definition of mutualism is that it refers to interactions between members of different species that are advantageous to both parties, which displays the positive characteristics of the results of those interactions. Nevertheless, a more exact definition of mutualism is an interaction between individuals of various species that has a positive impact on per capita reproduction and/or survival of the interacting populations. Whereas only one partner species can give mutualistic benefits in species-specific mutualisms, several different species can do so in generalized mutualisms.

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Gypsum, a soft mineral frequently left behind when water bodies evaporate, is what gives the sands of White Sands National Monument a high albedo their texture, hence option C is correct.

Despite being a very common mineral, gypsum is rarely found as sand because it readily dissolves in water and is often transported to the sea by rivers.  

The dunes seem white like snow additionally, gypsum doesn't absorb heat from the sun as silica sand does.

Therefore, gypsum is actually a transparent material, but due of the frequent collisions between the grains,, hence option C is correct.

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Explanation:

11. C

12.B

13.B

14.B

15.C?

16.D

17.A?

18.D

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Chemical Coordination is like the coordination that occurs between 1 or more organs / organ systems in multicellular organisms (for example ↦ humans, animals, birds etc.). During this chemical coordination, cells in the organs / organ systems will produce some chemicals which helps in regulating the activities of other cells in the body.

Example ↦ Endocrine glands in the pancreas secrete hormones which consist of proteins & lipids.

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Answer:

Dehydration

Explanation:

What causes bacteria to die in an extremely salty environment is dehydration due to the loss of osmotic balance in their cells.

Water molecules would normally move from the region of high water potential or low solute concentration to the region of low water potential or high solute concentration through a biologically permeable membrane.

An extremely salty environment would be hypertonic to the cells of bacteria and the cell walls of bacteria act as biologically permeable membranes. Hence, the bacteria cells lose water due to the osmotic movement of water from their cells to the surrounding salty environment.

When collecting gas over water, it is important that the collection tube remains underwater because it provides some protection for the experimenter from potential harm, but also because water is denser than gas, which means that the gas will naturally rise to the top of the collection tube when it is released into the water.

This ensures that no gas is lost and that the entire sample is captured. When collecting gas over water, it is important that the collection tube remains submerged in the water to ensure that the gas being collected is not lost. This is due to the fact that gases are typically less dense than liquids, and therefore have a tendency to rise to the top of a container or tube when they are released into it. If the collection tube is not completely submerged in the water, some of the gas may escape and not be captured in the tube. To prevent this from happening, the collection tube should be completely submerged in the water so that the gas has nowhere to go but up into the tube. This will ensure that the entire sample of gas is captured, without any being lost to the atmosphere. Additionally, having the tube submerged in the water provides a measure of safety for the experimenter, as any potential explosions or other hazards will be contained within the water.

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Answer:

To promote drainage

Explanation:

To promote drainage, keep the CDU below the level of the patient’s chest. Monitor water levels in the water-seal and suction-control chambers. Water in both chambers evaporates, so be sure to add water periodically to maintain the water-seal and suction levels.

Each daughter cell will also contain 46 chromosomes.

During mitosis, a cell in the G1 phase with 46 chromosomes will produce two daughter cells, each containing 46 chromosomes.

Mitosis is a process of cell division where the genetic material is evenly distributed to ensure the formation of genetically identical daughter cells.

46 chromosomes in G1 → Mitosis → 46 chromosomes in each daughter cell.

Mitosis involves several stages: prophase, metaphase, anaphase, and telophase. In prophase, chromosomes condense and become visible. In metaphase, chromosomes align at the cell's center.

Anaphase follows, during which chromatids separate and move towards opposite ends of the cell.

Finally, telophase occurs, leading to the formation of two new nuclei around the chromosomes.

The end result of mitosis is the production of two daughter cells, both having the same chromosome number as the parent cell.

In this case, if the cell has 46 chromosomes in the G1 phase, each daughter cell will also contain 46 chromosomes.

Mitosis ensures the preservation of the genetic information and the equal distribution of chromosomes to maintain genetic stability and cell function.

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Answer:

option (C)

Explanation:

In both plants and animals, RNA contains:

Ribose sugar, phosphates, adenine, uracil, guanine, and cytosine.

Answer:

In RNA thymine is replaced by uracil

Answer:

genus and species

Explanation:

Binomial Nomenclature Often known as the sequential nomenclature, this systematic method of naming organisms consists of two Latin names, the genus, and the species. All living things, and some viruses, have a scientific name.

Answer:

When the length of the side of the cube is doubled, the area increases by a factor of four while the volume increases by a factor of eight.

Explanation:

Surface area of a cube is given by the formula below:

Surface area of a cube = 6a²

Volume of a cube is also given by the formula below:

Volume of a cube = a³

Where a is the length of a side of the cube.

For the first cube, a = 2 cm

Surface area of the first cube = 6 * (2 cm)² = 24 cm²

Volume of the first cube = (2 cm)³ = 8 cm³

When the side length of the cube doubles, a = 4 cm

Surface area of the second cube = 6 * (4 cm)² = 96 cm²

Volume of the first cube = (4 cm)³ = 64 cm³

The ratio of the area and volume of the new cube is given below:

Area = 96 cm² / 24 cm² = 4

Volume = 64 cm³ / 8 cm³ = 8

Therefore, when the length of the side of the cube is doubled, the area increases by a factor of four while the volume increases by a factor of eight.

Answer:

C. The arrangement of the mineral's atoms.

Explanation:

The arrangement of something's atoms both defines its physical properties, as well as how it will chemically react with other substances. Hope this helps!

Usually fresh water lakes have a pH range between 6.5 to 8.5, this is appropiate for many organisms life and development.