Which statement describes an event after which primary succession might successfully occur?

A wildfire destroys several thousand square kilometers of grassland.
O A glacier retreats, leaving behind a large area of rock.
O Warming temperatures in the spring thaw soil upon which seeds and fungal spores can grow.
O The ocean water falls back as the tide goes out, exposing a large stretch of sandy ocean front.

Answer:

it increases

Explanation:

becaus light beam is so strong it can be dangerous to eyes and when the people see it they go blind

Following a schedule does not cramp me, rather it appeals to me.

A schedule is a plan that specifies the time and duration of activities, events, or tasks that need to be accomplished. It can be in the form of a calendar, planner, or list of tasks to be done at specific times.

Several reasons make having a schedule important include:

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A rock that forms from molten material is called an igneous rock. The term "igneous" comes from the Latin word "ignis" which means fire, reflecting the hot temperatures at which these rocks form. Igneous rocks form when magma (molten rock material) cools and solidifies either below the Earth's surface (intrusive rocks) or above the Earth's surface (extrusive rocks).

The cooling and solidification process can happen quickly or slowly, resulting in different types of rocks with different textures and mineral compositions. On the other hand, a rock that forms from a preexisting rock and undergoes changes in heat and pressure is called a metamorphic rock. Metamorphic rocks form when existing rocks are subjected to high pressures and temperatures, causing them to change physically and chemically. This process is known as metamorphism, and can happen due to processes such as tectonic plate movement, volcanic activity, or the intrusion of magma into surrounding rock. The resulting metamorphic rocks can have new mineral compositions and textures that are very different from their original form.

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Answer:

E. Photosynthetic rate is decreased.

Explanation:

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:

Heterozygous alleles are called silent carriers of a trait because they carry two different alleles for a particular gene, but only one allele is expressed in the phenotype, while the other remains "silent." The expressed allele is usually dominant, while the silent allele is usually recessive. This means that the individual carrying the heterozygous allele will not show the recessive trait, but they can still pass it on to their offspring.

If two heterozygous parents each pass on a recessive allele, their offspring has a 25% chance of inheriting two recessive alleles and showing a recessive phenotype. In this case, the heterozygous parents are carriers of the recessive trait, but do not show it in their phenotype.

Therefore, the correct answer is: If two heterozygous parents each pass on a recessive allele their offspring will show a recessive phenotype.

Explanation: Hope this helps! :)

Answer:

lily

Explanation:

The two atria are thin-walled chambers that receive blood from the veins. The two ventricles are thick-walled chambers that forcefully pump blood out of the heart. The right atrium receives deoxygenated blood from systemic veins; the left atrium receives oxygenated blood from the pulmonary veins.

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Nicotine in cigarette smoke mixes with the blood and reduces the affinity of haemoglobin for oxygen uptake. It decreases potential function of the lungs. Nicotine works as stimulant as well as depressant for CNS. Overdose may lead to addiction and liver cirrhosis.

The overdependence or excessive consumption of certain chemical drug by the user leads to its addiction. Drug addiction is a social stigma and is commonly observed in the adolescents and youths.

Drug addiction poses harmful effect on the physical, mental, emotional and social well being of a person. It makes them isolated from the society and indulges them in destructive or sometimes violent activities.

Drugs can be stimulants, depressants, sedatives, hallucinogens etc. Consumption of any of these can lead to addiction in the long run. It is extremely difficult to withdraw the use of drugs once the person is addictive to it.

Drug addiction withdrawal requires deep therapeutic counselling by the practitioners. Rehabitalization centres are available for people suffering with drug addiction.

Thus, drug addiction should be dealt with empathy and care.

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Answer:

Environment

Explanation:

B.F Skinner was of the belief that the environment of a person drove or influenced his behavior. His opinion was that human beings have a particular way of behaving which requires special kinds of responses and that as this goes on, humans will adapt and start behaving in a certain kind of way.

He strongly believed that because we learn things differently and in different environments, that is why there are differences in human behavior and one's environment can shape his personality.

cyanobacteria

it is one of the earliest organisms

The Gibbs free energy available to do work for the reaction is approximately -15,427.20 kJ, rounded to two decimal places.

To calculate the Gibbs free energy (ΔG) available to do work for the given reaction, we need to use the formula:

ΔG = -nFΔE

where ΔE is the potential difference, n is the number of electrons transferred, and F is the Faraday constant (96.5 kJ/(mol e- × V)).

First, let's calculate the ΔE for the reaction by subtracting the reduction potential of the anode (NH4+ to NO2-) from the reduction potential of the cathode (O2 to H2O):

ΔE = E(cathode) - E(anode)

= (+0.82 V) - (+0.34 V)

= +0.48 V

Next, we need to balance the full reaction to determine the number of electrons transferred (n) when 440 moles of NH4+ are oxidized. The balanced equation is as follows:

8NH4+ + 6O2 -> 8H2O + 6NO3- + 16H+

From the balanced equation, we can see that for every 8 moles of NH4+ oxidized, 6 moles of electrons are transferred.

So, the number of electrons transferred (n) when 440 moles of NH4+ are oxidized can be calculated as:

n = (6 mol e- / 8 mol NH4+) × 440 mol NH4+

= 330 mol e-

Therefore, when 440 moles of NH4+ are oxidized, 330 moles of electrons are transferred.

Now, let's substitute the values into the equation:

ΔG = -nFΔE

= -(330 mol e-) × (96.5 kJ/(mol e- × V)) × (+0.48 V)

Calculating this expression, we find:

ΔG ≈ -15,427.20 kJ

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Answer:

d. Haploid egg and sperm cells combine to create a diploid individual

Explanation:

Animals are diploid organisms (2n) and undergo sexual reproduction. This sexual reproduction causes them to produce gametes via a process called MEIOSIS. Meiosis is a division that reduced the number of chromosomes in the daughter cell (gamete) by half.

This means that meiotic division produces haploid gametes (n) from a diploid animal. This happens so that when the haploid sperm cell (male gametes) and haploid egg cell (female gametes) meet in a process called FERTILIZATION, a diploid individual is created.

Answer:

D. Haploid egg and sperm cells combine to create a diploid individual

Explanation:

Answer

Workload, lack of job security, and personnel problems gang up on and overwhelm employees, dragging down their satisfaction levels. In fact, the negative consequences from stress are so strong that it has been declared a World Wide Epidemic by the World Health Organization.Explanation:u got this

Answer:

true

Explanation:

Answer:

All flowers with some dark blue petals and some white petals.

Explanation:

When there is a co-dominant trait, the trait is shared.

Example: one parent has a B blood type, and the other A. Their child will have BA.

Answer:

D.  all flowers with some dark blue petals and some white petals

Explanation:

got it right edge 2021

Cheetahs are one of my favorite creatures.

Cheetahs' physical characteristics, such as their speed, agility, and razor-sharp claws, have probably evolved over time to help them survive in their habitat.

Cheetahs are swift hunters that can pursue prey in wide-open savannahs. Their keen claws enable them to grip the ground while racing quickly.

Cheetahs may need to adjust to new environmental conditions in the future, including greater competition for food and water and habitat loss brought on by human activities.

They could need to change their hunting techniques, pick other prey, or even broaden their range to encompass new ecosystems.

Additionally, they might need to strengthen their defenses against illnesses and other environmental stresses in order to survive in a changing world.

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Answer:

The Occipital Lobe

Explanation:

The Brain is the part of the central nervous system enclosed in the cranium of humans other vertebrates, consisting of soft, convoluted mass of gray and white matter and serving to control and coordinate the mental and physical actions.

The Occipital Love is the most posterior love of each cerebral hemisphere, behind the parietal and temporal lobes.

Answer:

O d. A carbonyl

Explanation:

Nucleotides have three components: pentose sugar (5-carbon sugar), phosphate group, and nitrogenous base.

Genetics is the area of biology that studies genes and inheritance patterns. There are two categories of genes in this genetics. These genes are recessive and dominant.

In the study of inheritance, it is the initial group or generation. The first filial generation, or F1 generation, is a product of P generation. The F2 generation, or offspring of the F1 generation, is the second filial generation created by crossing F1 individuals.

In a cross-pollination experiment, the first generation of plants is known as the P generation, or paternal generation. The F1 generation is the offspring or generation that a P generation creates.

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The organisms that feed on dead and decaying matter are called Saprotrophs.

An organism that feeds on dead and decaying organic matter is called a saprotroph. These organisms are heterotrophic, which means that they obtain their food from other sources. They are important in the ecosystem because they break down dead organic matter and recycle it back into the soil, making nutrients available to other living organisms

Answer:

A. Saprotrophs

Explanation:

Saprotrophs are organisms that obtain their nutrients by feeding on dead and decaying matter. They play a crucial role in the ecosystem by decomposing organic material and recycling nutrients back into the environment.

These organisms secrete enzymes that break down complex organic compounds into simpler substances, such as sugars and amino acids, which they can absorb and utilize for their own growth and energy needs. Examples of saprotrophs include fungi (such as mushrooms and molds) and certain bacteria.

Unlike autotrophs, which can produce their own food through photosynthesis or chemosynthesis, saprotrophs rely on external sources of organic matter for their nutrition. They actively decompose dead plants, animals, and other organic materials, aiding in the process of nutrient recycling and decomposition.

Heterotrophs, on the other hand, are a broader category of organisms that obtain their nutrients by consuming other living or dead organisms. This includes saprotrophs, as well as other types of organisms such as herbivores, carnivores, and omnivores.

Parasites, meanwhile, are organisms that live in or on other organisms, known as hosts, and obtain their nutrients from the host while causing harm or damage to it. Unlike saprotrophs, parasites typically rely on a living host for their sustenance rather than feeding on dead and decaying matter.

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Answer:

The single guide RNA forms hydrogen bonds with DNA, while Cas9 hydrolyzes phosphodiester bonds

Explanation:

The base pairing between nucleic acid strands (either DNA or RNA) is through hydrogen bonds between nucleotide bases. In DNA, Adenine always forms two hydrogen bonds with Thymine, while Guanine always forms three hydrogen bonds only with Cytosine. Moreover, adjacent nucleotides in the same strand are covalently linked by phosphodiester bonds (i.e., covalent bonds between the 5' phosphate group of one nucleotide and the 3'-OH group of another). The CRISPR/Cas9 genome editing systems make use of single-guide RNAs (sgRNAs) that interact with DNA through hydrogen bonds. These sgRNAs have perfect complementarity to the target DNAs in order to bind them. On the other hand, Cas9 is an enzyme that hydrolyzes phosphodiester bonds in both DNA strands very precisely and accurately by using a sgRNA complementary to a specific DNA sequence.

The ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.

To find the ratio between 92 mL and 3.0 fl oz, we need to convert the units to a common measurement. Let's convert 3.0 fl oz to milliliters (mL).

1 fluid ounce (fl oz) is equal to approximately 29.5735 milliliters (mL).

Therefore, 3.0 fl oz is equal to 3.0 * 29.5735 = 88.72 mL (rounded to two decimal places).

Now we can express the ratio between 92 mL and 88.72 mL:

92 mL : 88.72 mL

Simplifying the ratio by dividing both sides by the greatest common divisor, we get:

46 : 44

So, the ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.

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Answer:The blood group of a person who does not have antigen A or B but is positive for antigen D is classified as blood group O positive (O+).

Explanation: In the ABO blood typing system, there are four main blood types: A, B, AB, and O. These blood types are determined by the presence or absence of specific antigens on the surface of red blood cells. Antigens A and B are responsible for blood types A and B, respectively.

 If a person lacks both antigen A and antigen B, they are considered to have blood type O. The positive (+) or negative (-) designation refers to the presence or absence of the Rh antigen, also known as the D antigen. A person who tests positive for the D antigen is Rh-positive.

Therefore, a person who does not have antigen A or B but is positive for the D antigen is classified as blood group O positive (O+).

A client is experiencing numbness and tingling in their fingers and lips while donating plasma. You suspect that the client is experiencing mild hypocalcemia, which is a condition that occurs when the blood calcium level is too low.

Hypocalcemia can cause a variety of symptoms, including numbness, tingling, muscle cramps, spasms, and seizures.

You first ask the client if they have any known medical conditions that could be causing their symptoms. You also ask them if they have taken any medications recently that could be affecting their calcium levels. If the client does not have any known medical conditions or medications that could be causing their symptoms, you suspect that their symptoms are caused by the blood donation.

Hypocalcemia can occur during blood donation if the donor loses too much blood too quickly. Blood contains calcium, and when the blood volume decreases, the calcium level in the blood can also decrease. This is why it is important to drink plenty of fluids before and after donating blood. Fluids help to replace the lost blood volume and prevent hypocalcemia.

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Answer:

In prokaryotes, translation occurs in the cytoplasm, where the large and small subunits of the ribosome bind to the mRNA. In eukaryotes, translation occurs in the cytosol or across the membrane of the endoplasmic reticulum where the entire ribosome/mRNA complex binds to the outer membrane of the rough endoplasmic reticulum and the new protein is synthesized and released into the ER; the newly created polypeptide can be stored inside the ER for future vesicle transport and secretion outside the cell, or immediately secreted.

Pumping CO2 gas into a greenhouse system is significant for several reasons. Greenhouse gases like CO2 are essential for plants to carry out photosynthesis, which is the process by which they convert sunlight into food. By adding CO2 to a greenhouse, it can help to increase plant growth and yield.

Here are some reasons why pumping CO2 into a greenhouse system is important:

Increased photosynthesis: Photosynthesis is a chemical process in which plants use sunlight to convert carbon dioxide and water into glucose, a form of sugar that is used as food. The addition of CO2 to the greenhouse system can help to increase photosynthesis, which means that plants will produce more food. This can result in faster growth, bigger plants, and higher yields.

Improved plant health: CO2 is essential for plant growth and can help to improve the overall health of the plants. By adding CO2 to the greenhouse system, it can help to create an environment that is more conducive to plant growth. This can lead to healthier plants that are less susceptible to disease and pests.

Improved crop yields: One of the most significant benefits of pumping CO2 into a greenhouse system is that it can increase crop yields. By increasing the amount of CO2 in the air, plants are able to produce more food, which can result in bigger, healthier plants with larger yields. This can be particularly beneficial for commercial growers who rely on high yields to generate income.

In summary, pumping CO2 gas into a greenhouse system is an effective way to improve plant growth and yield. By increasing the amount of CO2 in the air, plants are able to carry out photosynthesis more efficiently, which can lead to healthier plants and higher crop yields.

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Answer:

not all the time no