how do i explain this?

Answer:D

Explanation: shivering occurs when someone is cold and vasoconstriction is when the blood vessels close to the skin and the veins closer to the skin surface constrict as a result of dat air doesn’t enter the body

Vasoconstriction is the narrowing of the blood vessels that hinders blood flow. Vasoconstriction and shivering will lead to an increase in the temperature through thermoregulation. Thus, option d is correct.

Thermoregulation is the maintenance and balancing of the temperature and heat in the body. They are regulated by many factors including shivering and vasoconstriction.

During the vasoconstriction, the blood vessels close to the skin surface close and the body shivers as a result of cold or decreased temperature. This signals the body to increase the temperature so that shivering can be stopped.

Therefore, vasoconstriction and shivering signal the body to increase the temperature.

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Answer:

Amygdala

Explanation:

Generalized anxiety disorder (GAD occurs when an individual experiences excessive and continuous worry and anxiety about certain things ,It is caused by  over activation  of the region of the brain that mediate response to fight and flight stimulus and fear,the amygdala.

Its  symptoms are  difficulty with concentrations, overthinking ,indecision, irregular sleep patterns.

Two brain circuits  transmitted  sensory stimuli of fear or danger in the brain  to two regions of the brain,

1. the peripheral cerebral cortex for voluntary decisions

2. the Amygdala for involuntary emotional decision.

The amygdala  is concerned with  how the body reacts to the effects of the stimuli in the immediate environments, the interactions of the stimuli with  the emotions of the subject, and the involuntary response .

To  respond to the  stimuli of fear. The amygdala stimulates the hypothalamus.The latter activate the cardiovascular and breathing centre .Hence,adrenaline is released into the blood stream.The  increases involuntary response to anxiety,which gives a fast response..The cerebral cortex response takes time to relay response.

Amygdala,  stores memories of all emotions, fear, and anxiety. In patients with  this disorder, the Amygdala is sensitive and had been adapted to the memory   of fear and anxiety stored.Therefore, every slight normal event which should give any danger  is over reacted to  by the amygdala with  fear or flight response, This triggers the two brain circuits  to give anxiety-provoking events.

Intake of medication, Behavioural therapy are the mode of treatments.

Answer:

New leaves appear on a tree in spring. - NO

An amoeba divides in half. - YES

A bean plant produces seeds in long pods. - YES

Pollen grains are released from a flower. - YES

A sea star produces a new arm after losing one to a predator.​ - NO

Explanation:

The appearance of new leaves has nothing to do with reproduction but rather regeneration.

An amoeba dividing in half is a form of reproduction known as asexual. Binary fission is a reproductive process in which an organism divides into two and each half develops into new independent organisms.

A bean plant producing seed is part of the reproductive process. After fertilization, the ovule of a flower becomes the seed. A seed in itself is a ripened fertilized ovule.

The release of pollen grains from the anther of a flower to the stigma of a compatible flower in the same or different individuals plants is known as pollination. Pollination is a reproductive process similar to fertilization.

A sea star producing a new arm after losing one to a predator is a regeneration process rather than a reproductive process.

Answer:

It separate the inner environment from the outer environment.

Explanation:

The design provides the separation of the inner environment from the outer environment which is responsible to control the outside factors which directly affects the results of the experiment. The design provides control environment which is required for the experiment. In this control environment, the environmental factors will not affect the results of the experiment.

Answer:

E

Explanation:

I don't know. How Supposed to help you

Chylomicrons are synthesized in intestinal epithelial cells  to transport long-chain triglycerides to the tissues. Therefore, option (A) is correct.

Chylomicrons are lipoprotein particles made up of triglycerides, phospholipids, cholesterol, and proteins. They are also known as extremely low-density lipoproteins. They move dietary lipids from the intestines to other bodily parts.

Chylomicrons deliver lipids ingested from the gut to the adipose, cardiac, and skeletal muscle tissues, where their triglyceride components are digested by the action of the lipoprotein lipase, releasing the free fatty acids that may then be absorbed by the tissues.

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Answer:

a. New ideas often develop from unsuccessful experimentation.

Explanation:

The scientists' work would still be considered a success because new ideas often develop from unsuccessful experimentation. Many of today's famous inventions and celebrities failed at the start of their career. However, because they did not give up on their goal, they eventually succeeded. A few examples of those people are Bill Gates, Albert Einstein, and Michael Jordan.

Here is an influential quote, said by Michael Jordan, that I think accurately supports this topic of discussion:

"I've missed more than 9,000 shots in my career. I've lost almost 300 games. 26 times, I've been trusted to take the game-winning shot and missed. I've failed over and over and over again in my life. And that is why I succeed."

A scientist has been working for 15 years to develop a new type of plastic material but she has not been successful. Her work is still a success because new ideas often develop from unsuccessful experimentation.

There are various principles that need to be followed when scientific research is being carried out. Methods of self-regulation and authority regulation are both extremely important for conducting scientific research.

They both need to be followed as no one is sufficient without another. The basic principle for scientific working which is required to be followed by all scientists is respect for the work, the integrity of the knowledge, honesty about the data and openness about their mistakes.

Scientific principles are required to be followed in every stage of scientific research, right from the formation of a hypothesis to the publishing of results.

Therefore, even if research is not giving any results it is successful new ideas develop from unsuccessful experimentation.

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Answer: When the heat hits the plastic it starts to soften up and loose stiffness in it, but with alcohol it can cause serious consequences, drinking alcohol can cause more urination and lead to dehydration.

Explanation:

Answer:

the heat melts the plastic or softens it, which causes it to change shape.

alcohol changes taste and has a faster evaporation rate. If a person drinks warm alcohol he would start to lose more body water, he will perspire and urinate more.

;D hope this helps

Answer:

Explanation:

Ethical values mean that a resource is important to conserve, protect, and use responsibly.

Answer:

the second one

Explanation:

there are only 2 sex linked chromosomes and that is X and Y

The true statement when describing sex-linked inheritance is ; ( B ) The alleles are found on the X and Y chromosome

The alleles responsible for reproductive inheritance from parents to offspring is contained in the X and Y chromosome of the reproductive gametes.

The female gametes contains double X chromosomes while the male reproductive gametes contains one X and one Y chromosomes. The alleles that are responsible for inheritance ( i.e. the sex of the offspring ) are contained in this chromosomes.

Hence we can conclude that The true statement when describing sex-linked inheritance is the alleles are found on the X and Y chromosome.

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Answer:

For the production of food for animals.

Explanation:

365,000 acres of land were needed for the production of feed for animals in order to produce beef. Feed such as grasses, berseem, shaftal and maize etc are given to animals because these plants has high protein content which is necessary for the production of meat in animals. If proper feed is not provided to animals so they becomes weak and low in meat which will not fulfill the beef need of a country so proper feed is necessary for the production of high amount of beef.

However, in Earths First Billion years and over the past 4.5 billion years, the main source of water was from comets. We know that comets consist chiefly of chemical compounds that are either gases or liquids at earth-surface conditions: methane is one common component of comets and water is another.

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The options are missing from the question,the missing options are;

a. Anaphylactic

b. Histamine

c. Immediate allergic

d. Delayed allergic

e. B-cell mediated.

The correct answer to the question is option D

DELAYED ALLERGIC.

Delayed allergic response is a type of late response to antigen that occurs 48-72hours after exposure to an antigen.

This type of allergic response is mediated by T-cells and macrophages.

They are otherwise known as delayed hypersensitivity response/reaction.

The response is delayed because there is sensitization upon first exposure to the antigen, therefore if there is a re-exposure,a secondary cellular response is initiated triggering the actions of the already sensitized T-cells and macrophages.

Answer:

B. dark brown sea lions blend in with the color of rocks and escape predators

Explanation:

The lighter sea lion population is going down while the darker sea lion population is going up. This means that dark brown sea lions have some kind of natural advantage over light brown sea lions.

Answer:

If we do not reduce our carbon emissions and instead allow global temperatures to rise by 4.5˚C, up to half the animals and plants in some of the world’s most biodiverse areas could go extinct by 2100, according to a new study. In fact, even if we are able to limit global warming to the Paris climate agreement goal of 2˚ C, areas such as the Amazon and the Galapagos could still lose one quarter of their species, say the researchers, who studied the effects of climate change on 80,000 plants and animals in 35 areas. Another study found that local extinctions (when a species goes extinct in a particular area, but still exists elsewhere) are already occurring in 47 percent of the 976 species studied, in every kind of habitat and climatic zone.

With temperatures rising, precipitation patterns changing, and the weather getting less predictable and more extreme, a 2016 study determined that climate change is already significantly disrupting organisms and ecosystems on land and in water. Animals are not only shifting their range and altering the timing of key life stages— they are also exhibiting differences in their sex ratios, tolerance to heat, and in their bodies. Some of these changes may help a species adapt, while others could speed its demise.

Move, Adapt or Die

Animals can react to climate change in only three ways: They can move, adapt or die.

According to climate change If carbon emission can't reduced and instead allow global temperatures to rise by 4.5˚C, up to half the animals and plants in some of the world’s most biodiverse areas could go extinct by 2100.

Climate change refers to long-term shifts in temperatures and weather patterns. These shifts may be natural, but since the 1800s, human activities have been the main driver of climate change, primarily due to the burning of fossil fuels (like coal, oil, and gas) which produces heat-trapping gases.

More frequent and intense drought, storms, heat waves, rising sea levels, melting glaciers and warming oceans can directly harm animals, destroy the places they live, and wreak havoc on people's livelihoods and communities.

The potential future effects of global climate change include more frequent wildfires, longer periods of drought in some regions, and an increase in the duration and intensity of tropical storms.

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Answer:

Photosynthesis

Explanation:



Answer:

liquid waste , solid waste,harzadious waste,recyclable rubbish and organic waste

Answer:

PCR

Produces million of copies of  a segments of DNA and

Requires cycles of temperature.

PCR.

When large number of copies of a particular gene fragment is needed from smallest quantity of DNA molecules,the techniques of genetic engineering usually employed is called PCR. It involves denaturation of template DNA,the use of Primers(20 base pairs),the use of enzyme DNA polymerase for building of new strands of DNA.

Natural Replication.

produces a copy of the whole genome

It occurs before mitosis and meiosis

Begins at the origin of replication.

Both.

Requires primers

Requires DNA polymerase

Results in Semi conservative replication

Explanation:

When  rapid production of large copies of particular DNA fragments is needed from a small molecules of fragment of the original DNA fragments is needed the tool of genetic engineering used is called  PCR.

It involves denaturation of the template DNA at 95 degrees for separation to single strands,

the attachments of primers(20 base pairs of complementary bases to the template DNA) at 65 degree a process called annealing and the use of polymerase enzyme for building on chains of DNA , during elongation.

The enzyme are extracted from thermophilic organisms,therefore could withstand the high temperature.The polymerization can proceed for a continuous cycle with million of new DNA chains produced by the polymerization Chain  machine

Answer:

12% I think this is right answer v

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Answer:

the answer is 10%

Explanation:

the 10% rule states that only 10% of energy is passed from one trophic level to the other (organism to organism)

Answer:

Skeletal muscle cells are long, cylindrical, multi-nucleated and striated. Each nucleus regulates the metabolic requirements of the sarcoplasm around it. Skeletal muscle cells have high energy requirements, so they contain many mitochondria in order to generate sufficient ATP.

Answer:

the size of ribosome of (animal cell )is smaller than ribosome of plant cell

Answer:

Animal cell  is smaller than ribosome of plant cell

Explanation:

Answer:

Decreasing overconsumption

Explanation:

During the last years, environmental concerns have increased due to high levels of contamination and destruction of ecosystems. In response to this situation, a worldwide movement has emerged that promotes environmentally friendly practices that aim at reaching sustainability. The term "sustainability" refers to a global trend to find the balance between the conservation of nature and the use of natural resources; one of the most important principles to achieve this is to reduce consumption; this leads to a decrease in the negative impact of human societies as fewer resources are taken from nature and thus, ecosystems are preserved. So, the correct answer is decreasing overconsumption

Answer:

lithosphere, atmosphere and hydrosphere.

Explanation:

Answer:

the hydrosphere

the atmosphere

the lithosphere

Explanation:

The hydrosphere is all waters on the Earth's surface, such as lakes and seas, and sometimes including water over the Earth's surface, such as clouds.

The atmosphere is the Earth's layer of gases, commonly known as air, that is retained by Earth's gravity.

The lithosphere is the rigid part of the earth, consisting of the crust and upper mantle.

Answer:

Both transfer thermal energy from warm objects to cooler objects.

Explanation:

Radiation involves the transfer of energy in the form of light, heat and electromagnetic waves such as x-rays while conduction involves the transfer of energy through direct contact of the two substances. The both of them involve involve the transfer of thermal energy from hotter objects to colder objects.

Radiation is involved in the transfer of energy through empty spaces while conduction involves transfer of energy through direct contact.

The statement which best compares radiation and conduction is both transfer thermal energy from warm objects to cooler objects.

To answer the question, we need to know what heat transfer is

This is the transfer of thermal energy from one body to the other.

There are 3 types of heat transfer namely

Conduction - This is the transfer of thermal energy from warms objects to cooler objects through direct contact. This usually occurs in solids.

Convection - This is transfer of thermal energy from warmer objects to cooler objects by movement of the whole object. This usually occurs in fluids.

Radiation - This is transfer of thermal energy from warm objects to cools objects through empty space by electromagnetic waves.

So, the similarity between conduction and radiation is that both transfer thermal energy from warm objects to cooler objects.

So, the statement which best compares radiation and conduction is both transfer thermal energy from warm objects to cooler objects.

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Answer:

axial skeleton

Explanation:

The axial skeleton supports the head, neck, back, and chest and thus forms the vertical axis of the body. It consists of the skull, vertebral column (including the sacrum and coccyx), and the thoracic cage, formed by the ribs and sternum. The appendicular skeleton is made up of all bones of the upper and lower limbs.

Answer:

C. Axial Skeleton

Explanation:

Edge 2022

Answer:

A likely location primary succession is a large Boulder.

Explanation:

primary succession begins on Rock formations, such as volcanoes on mountains, or in a place with no organisms or soil.

Answer:

wind energy

Explanation

wind power is more efficient than solar power or energy because this system use less energy release less carbon dioxide to the atmosphere and produce more overall energy a single wind turbine  can generate same amount of electricity in Kwh as thousands of solar power panels

Answer: Wind Energy

Explanation: Wind power is considered more efficient than solar because they use less energy, release less carbon dioxide and produce more energy overall.

Wind energy runs 24 hour a day since it doesn't depend on sunlight to create energy unlike solar energy panels.

Answer:

yes

Explanation:

The cells in blood are far larger than 500nm (Red blood cells: 6000-8000nm, white blood cells: 7000-21000nm, platelets: 2000-3000nm) and so they sit in the plasma as a suspension. The plasma also contains blood plasma proteins which are between 2-500nm and so they form a colloid in the water.

Answer:

The cells in blood are far larger than 500nm (Red blood cells: 6000-8000nm, white blood cells: 7000-21000nm, platelets: 2000-3000nm) and so they sit in the plasma as a suspension. The plasma also contains blood plasma proteins which are between 2-500nm and so they form a colloid in the water.

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Explanation:

The answers are:

fungi = basidiomycota

animalia = insect

plantae = cactus

A fungus is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms.

Many people mistakenly believe fungi are plants. However, fungi are neither plants nor animals but rather organisms that form their own kingdom of life. The way they feed themselves is different from other organisms: they do not photosynthesize like plants and neither do they ingest their food like animals.

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Answer:

1) Flu

2) Hantavirus

3)HIV/AIDS

hope it helps you

Explanation:

Answer:

A. Glucose is only partially broken down.

Explanation:

Glucose can only be partially broken down in the absence of oxygen, and the byproducts of anaerobic vs aerobic lead to different amounts of energy.