The cell membrane:
allows some substances to pass into and out of the cell
prevents all substances from passing into and out of the cell
is composed of a protein bilayer
is composed of a lipid bilayer

Answer:

The examples of viral infections are B. Common cold, flu, and chickenpox.

Explanation:

Viral infections are caused by viruses, which are small infectious agents that can only replicate inside living cells. The common cold, flu, and chickenpox are all caused by different types of viruses. Strep throat, botulism, anthrax, trichinosis, hookworm, elephantiasis, malaria, African Sleeping sickness, and intestinal diseases mentioned in the other options are caused by bacteria, parasites, or other pathogens, not viruses.

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Answer:

They allow capillary walls to open and become leaky.

Answer:

asexual reproduction is gametes

Answer:

Malonate

Explanation:

Malonate (malonic acid) has long been known to inhibit cellular respiration.

Based on the clumping that was obtained when anti-D serum was dropped into John Doe's blood,  John Doe's blood type is Blood type D.

Blood typing refers to the process by which blood is classified into types.

The process of typing blood involves reactions in which agglutination of blood occurs when a certain type of antiserum is dropped into the blood that contains a particular antigen such that an antibody-antigen pair is obtained.

The presence of certain antigens on the surface of blood helps to classify blood into types.

For example, when anti-A serum is added to a blood sample and agglutination occurs, the blood type could be either blood type A or blood type AB as these blood samples contain the A antigen on the surface of the red blood cells.

Similarly, when anti-D serum is added to a blood sample, the blood type is a blood group D as this blood sample contains the D antigen on the surface of the red blood cells.

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The primary difference between cholinergic neurons and adrenergic neurons are Cholinergic neurons secrete acetylcholine and adrenergic neurons secrete norepinephrine. So, the correct answer is option D.

The autonomic nervous system has two receptors: cholinergic and adrenergic. The sympathetic nervous system is controlled by adrenergic receptors, while the parasympathetic nervous system is controlled by cholinergic receptors. Additionally, acetylcholine and adrenaline/norepinephrine respectively activate adrenergic and cholinergic receptors. Adrenergic and cholinergic receptors differ in this way.

The sympathetic nervous system, also known as the SNS, is made up of adrenergic fibres, whereas the parasympathetic nervous system, or PNS, is made up of cholinergic fibres. Acetylcholine is the neurotransmitter used by the PNS, whereas noradrenaline or adrenaline are used by the SNS (norepinephrine). Adrenergic promotes sympathetic, or "fight or flight," response. Parasympathetic, often known as rest and digest, is stimulated by cholinergic. Two receptors—Alpha and Beta—are contacted by the sympathetic and parasympathetic nervous systems, which are the two parts of the autonomic nervous system.

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In a food chain, organisms are arranged in a linear order from producers to species that degrade.

Plant → grasshopper → bird → snake → owl.

An interconnected system of food chains is known as a food web. As opposed to the food web, which has several pathways, the food chain has just one. We can learn about the connections between creatures by looking at the food chain. Ecosystem components like the food web and food chain are crucial.

Examining the distinctions between a food web and a food chain, let's see what they have in common. A food chain, as defined by science, is a progression that demonstrates how energy moves from one organism to another in a particular order or through time. The energy moves along a certain channel in a community including producers, consumers, and decomposers.

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Answer:

all of the above mentioned

To create gametes that are genetically distinct and produce seeds for the next generation of sequoia trees, cells differentiate. Thus, option D is correct.

Because they live a very long time and develop swiftly, giant sequoia get so big. The Sierra snowpack, which builds up over the winter and soaks into the ground when it melts, provides the majority of the water that gigantic sequoia need to survive.

A stem cell undergoes a process called cell differentiation, in which it develops into a specialized cell or cells that can carry out the many biological functions required to support the sequoia tree.

Therefore, Cell differentiation produces more cells to support the growth of the tree and to replace or repair damaged or dead ones.

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Answer:

labored breathing

explanation:

Out of all the answers this made most sense common sense

The Dihydroxyacetone Phosphate Reaction Step of Glycolysis: All True Statements

The carboxylation product 3-phosphoglycerate is phosphorylated to 1,3-bisphosphoglycerate for the production of dihydroxyacetone phosphate by the enzyme phosphoglycerate kinase. A mixed anhydride is created between the new phosphate residue and the carboxyl group in this process, which also consumes ATP.

Gluconeogenesis and lipogenesis are induced by fructose via a SIRT1-dependent pathway. In part because of increased gluconeogenesis and lipogenesis, a diet high in fructose causes insulin resistance and dyslipidemia. Gluconeogenesis and lipogenesis can be induced by the protein deacetylase SIRT1, which is NAD+-dependent.

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40mm is the height of the plant that was kept in the sun for 3 hours on day 10.

When the length of the day is less than ten hours, most plants do not grow very much. even when the temperature is maintained in the ideal range

The production of plant food, stem length, leaf color, and flowering are all influenced by light intensity. Low-light environments typically result in spindly plants with light green foliage. Similar plants that are grown in intense light typically have larger, dark green leaves and shorter, better branches.

The stem typically slows down after being exposed to sunshine. However, if the plant is competing with nearby plants for sunlight or in response to warm temperatures to increase the distance between the scorching earth and the plant's leaves, the stem may expand quickly once more.

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The reasons are as following:

a. A normal trachea (windpipe) has numerous cartilage rings (a strong and flexible tissue). These C-shaped rings support the trachea while also allowing it to move and flex when your child breathes. Complete tracheal rings are a birth defect that causes these rings to be O-shaped rather than C-shaped.

b. Each alveolus has a single cell thick wall. A capillary wall is approximately the same thickness. The distance between air and blood is approximately one thousandth of a millimeter. Red blood cells, which move in a single file through the pulmonary capillaries, transport oxygen.

c. A moist mucous-membrane layer composed of cells with small hair-like projections called cilia lines the trachea. To trap particles, the cilia project into the tracheal lumen (channel). The mucous membrane also contains cells and ducts that secrete mucus droplets and water molecules.

d. Smoking raises the concentration of carbon monoxide (CO) in the blood while decreasing the concentration of hemoglobin-bound oxygen. The formation of carboxyhemoglobin, which reduces the blood's oxygen-carrying capacity and inhibits the body's transport, delivery, and utilization of oxygen.

e. Nicotine gum is an FDA-approved medicine that can assist people in quitting smoking. It can be used every 2 hours on its own to control withdrawal symptoms, or it can be used as needed in conjunction with a nicotine patch to control stronger cravings.

f. The total respiratory surface area of human lungs is approximately 100 m2, which is equivalent to the surface area of a racquetball court! The gills' feather-like shape also increases respiratory surface area. This large surface area is required to process the massive amounts of air required for breathing and delivering oxygen to your lungs.

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Answer:

Oxygen

Explanation:

In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts.

Glycolysis takes place in the cytosol of a cell, and it can be broken down into two main phases: the energy-requiring phase, above the dotted line in the image below, and the energy-releasing phase, below the dotted line.

Energy-requiring phase.

The initial glucose molecule undergoes a rearrangement during this phase, and two phosphate groups are linked to it. Because of the phosphate groups, the changed sugar, which is now known as fructose-1,6-bisphosphate, is unstable and can divide into two phosphate-containing three-carbon sugars. Because 2ATP molecules are used throughout these stages, which require phosphates from ATP.

The three-carbon sugars that are produced when the unstable sugar disintegrates are distinct from one another. Glyceraldehyde-3-phosphate is the only one that can proceed to the next step. But since the unfavorable sugar, DHAP, is easily changed into the favorable one, both ultimately complete the pathway.phase that releases energy. During this phase, a series of reactions transform each three-carbon sugar into pyruvate, another three-carbon molecule. Two ATP molecules and one NADH molecule are produced in these reactions. This phase produces four ATP and two NADH because it occurs twice, once for each of the two three-carbon sugars.

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The answer would be A. I checked.

Answer:

a) Viruses

Explanation:

Viruses are not considered to be alive and does not respond to antibiotics.

Antibiotics only kills bacteria. Hence, the option (a) is the correct answer.

Answer:

(1) b 20 is the prefer comic books

1. Metallic luster, does not scratch glass, shows cleavage and has a greasy feel. Mineral name - Galena

2. Nonmetallic luster, does scratch glass, shows cleavage, pink color. Mineral name - Potassium Feldspar

3. Nonmetallic luster, does scratch glass, shows cleavage, has cubic crystals, green color. Mineral name - calcite

4. Nonmetallic luster, softer than glass, breaks into flat sheets, black

color. Mineral name - Biotite

5. Metallic, scratches glass, breaks into uneven surfaces, black streak

color.  Mineral name - pyroxene

6. Nonmetallic, doesn't scratch glass, shows cleavage, colorless streak and has cubic cleavage. Mineral name - halite

7. Bubbles in acid, colorless streak.  Mineral name - Calcite

8. Nonmetallic, scratches glass, shows fracture and has a red color. Mineral name - Magnetite

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The climate of Blue Ridge Mountains varies depending on the season. it ranges from 19°c in the summer and approximately 5°c during winter. The precipitation annually is between an average of 23 to 39 centimeters during the fall.

Blue Ridge Mountains, Georgia has a climate that is dependent on its weather. Its temperature rises up to 19°c when it is summer time and goes as low as 5°c when it is winter.

Blue Ridge Mountains can see rain ranging from 23 to 39 centimeters which is about 9 to 15 inches a year during the fall.

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Explanation:

We are given that H gene responsible for hornless in cattle is dominant over h gene for horned cattle .

The parents taken for cross are homozygous for their character, one horned and other hornless are crossed . The genotype would be HH and hh respectively.

For cross refer to the attachment.

From the cross we can see that,

Despite the fact that artificial sweeteners were created as sugar substitutes to aid in lowering insulin resistance and obesity, data in both areas.

Therefore, using artificial sweeteners might result in irregular pancreatic function, abnormal insulin levels, as well as alterations in other metabolic processes that may increase our risk of developing linked diseases like type 2 diabetes.

Because of this, even though using artificial sweeteners to aid in weight loss seems promising, they have also been connected to a number of health issues, such as obesity and the associated cardiometabolic abnormalities (29–31).

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The amount of matter, as well as the temperature, are the two factors that determine the thermal energy of the substance.

Thermal energy is the internal energy that a system has when it is in thermodynamic equilibrium due to temperature. The energy of systems that are not in a state of thermodynamic equilibrium cannot be transformed into useful work as easily as thermal energy.

The same fluid or solid in a thermodynamic equilibrium state with the same energy (as thermal energy), however, cannot do work unless it is combined with another substance at a different temperature, as in a heat engine. This is because the same fluid or solid in a thermodynamic equilibrium state has the same energy (as thermal energy), but it cannot be converted to work in a mechanical device.

The balanced chemical equations are as follows:

Each atom on both sides of a balanced chemical equation has the same number and type. A balanced equation's coefficients must have the simplest whole number ratio. In chemical reactions, mass is always conserved.

The most important aspect of balancing chemical equations is to satisfy the law of conservation of mass, which states that "total mass of products equals total mass of all reactants."

A chemical equation that is not balanced violates the law of conservation of mass. It will indicate that mass is either created or destroyed, both of which are impossible.

Different types of reactions are Combustion reaction, Decomposition reaction, Neutralization reaction, Redox Reaction, Precipitation or Double-Displacement Reaction, and Synthesis reaction based on the product formed.

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Answer:

The answer to your question is B. alpine and ice sheet.

Explanation:

What are Alpine glaciers? ⇒ A glacier formed among summits and descending a mountain valley.

Alpine glaciers are a sheet of snow that forms over a cirque or high rock basin.

I hope this helps and have a wonderful day!

The amphipathic nature of the phospholipid leads to the formation of the phospholipid bilayer organization because the phospholipid molecules contain both hydrophilic and hydrophobic properties.

Phospholipids' amphipathic nature means that their molecules have both hydrophilic and hydrophobic characteristics. The fatty-acyl tail of the phospholipid is non-polar in nature, but the head group of the phospholipid is polar.

Thus, this property of phospholipids caused the arrangement of the phospholipid bilayer of the plasma membrane, where the non-polar fatty-acyl tail is buried inside the hydrophobic interior of the bilayer, which is away from the aqueous phase, and the polar head groups face the cytosolic and extracellular faces, which are exposed to the aqueous medium.

Similar to how lipophilic molecules may easily penetrate the cell membrane, polar drugs must be changed in order for them to do so since they cannot do so in the polarized condition.

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