Chapter 3 review questions

Answer:

During intense exercise:

lung capacity increases

vital capacity increases

respiratory capacity increases

functional residual capacity increases

tidal volume increases

the inspiratory and expiratory reserve volumes decrease as does the residual volume.

Explanation:

Residual volumes decrease because having better lung capacity, better development of the secondary skeletal muscles that collaborate in expiration and inspiration, these are given in a better way, and more effectively.

If these processes take place more efficiently, their potentiality increases and expiration and inspiration move a large current of air into the lungs, thus leaving less reserve airs.

Those people who have increased exhalation or inspiration reserve, have a weak activity of the musculature in the processes and function as "stagnant air" which is synonymous with a lack of physical activity or aerobic capacity.

It is important to clarify that all the above processes are accompanied by an increase in the size of the chest cage

Answer:

A fraction with a greater numerator (top number) than denominator (bottom number) is called an improper fraction.

To change a mixed number to an improper fraction:

\(\sf 3 \frac18=\dfrac{3 \times 8 + 1}{8}=\dfrac{24 + 1}{8}=\dfrac{25}{8}\)

Answer:

25/8

Explanation:

Now we have to,

→ convert mixed into improper fraction.

Let's solve the problem,

→ 3 1/8

→ ((3 × 8)/8) + (1/8)

→ (24/8) + (1/8)

→ (24 + 1)/8

→ 25/8

Hence, the answer is 25/8.

Answer:

It transports oxygen

Explanation:

The hemoglobin transports the oxygen to different areas of the body in the blood of the body.

Answer:

The direction of an electric current is by convention the direction in which a positive charge would move. Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery. Electrons would actually move through the wires in the opposite direction.

Conventionally, a positive charge would go in the same direction as an electric current. As a result, the battery's positive terminal receives less current in the external circuit than its negative counterpart. Actually, electrons would go in the reverse direction across the cables.

A stream of charged particles, such as electrons or ions, traveling through an electrical conductor or a vacuum is known as an electric current. The net rate of electric charge flowing through a surface or into a control volume is how it is calculated.

The cell phone, trains, ships, refrigerator, and the motors in appliances like food processors all run on electricity. To be useful, electric energy must be converted into other forms of energy like heat, light, or mechanical.

Conventionally, a positive charge would go in the same direction as an electric current. As a result, the battery's positive terminal receives less current in the external circuit than its negative counterpart.

Thus, a positive charge would go in the same direction as an electric current.

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Answer: The Pacific Plate

The Pacific Plate is the fastest, moving at more than 10 cm/y in some areas, followed by the Australian and Nazca Plates. The North American Plate is one of the slowest.

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The Pacific Plate is the fastest, moving at more than 10 cm/y in some areas, followed by the Australian and Nazca Plates. The North American Plate is one of the slowest.

The Relative motion has been considered as the process that it significantly involves the motion or the speed of any object with respect to the particular point.

A mid-ocean ridge separates the Pacific plate and the Nazca plate has the off the western coast of the South America. The relative motion of these both  two plates with respect to the South America which possesses in the bidirectional manner. The Pacific plate has been moving to the west, and the Nazca plate has moving to the east.

Therefore, The Pacific Plate is the fastest, moving at more than 10 cm/y in some areas, followed by the Australian and Nazca Plates. The North American Plate is one of the slowest.

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Answer:

carrying capacity , increase

Explanation:

Up to the the population carrying capacity the the population will increase to give a perfect balance and when the population will be much then the population will decrease.

Answer: considering you are a college student as well, you can start off with signing up for a student credit card and have it pay monthly subscriptions of something payable such as spotify premium charges or netflix monthly subscritptions, something that you'll be able to pay back in order to build your credit score. I hope this helped

Building good credit involves establishing a positive credit history and demonstrating responsible financial behavior.

Get a credit card: When you apply for a credit card and use it responsibly, it can help you establish good credit.

Make sure you pay your bills on time and try not to use too much of your available credit limit.

Make sure to always pay your bills on time. This means paying things like credit card bills, loans, and utility bills before they're due. Doing this shows that you can be counted on and it will help you build good credit.

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The characteristic that all parts of the electromagnetic spectrum share is that they travel at the same speed through empty space.

Electromagnetic spectrum refers to the range of all the types of electromagnetic radiation.

The electromagnetic radiation in the spectrum possess different wavelengths and frequencies and are as follows:

However, the characteristics that all parts of the electromagnetic spectrum share is that they travel at the same speed through empty space i.e. 3 × 10⁸m/s.

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The characteristic that all parts of the electromagnetic spectrum share is that they travel at the same speed through empty space.

The electromagnetic spectrum refers to the range of all possible frequencies of electromagnetic radiation. It encompasses various types of waves, each with different wavelengths and frequencies. The electromagnetic spectrum includes, from longest to shortest wavelength.

Longest wavelength and lowest frequency electromagnetic waves. They are used for communication, broadcasting, and radar.

Slightly shorter wavelength than radio waves. They are used in microwave ovens, telecommunications, and satellite communication.

Electromagnetic waves, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays, all propagate through a vacuum (such as empty space) at the speed of light, which is approximately 299,792,458 meters per second (or about 186,282 miles per second). This universal speed is a fundamental property of electromagnetic radiation.

The correct answer is that they travel at the same speed through empty space.

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Answer:

Ethylene

Explanation:

When a peach is trapped in a brown paper bag, it gives off ethylene gas, which helps the fruit ripen faster.

Answer:

Capillary action explained in the following scenario above, because if you picture the roots as the cup, the water as the water, the straw as the channels, and Karen as the plant. As Karen sucked through the straw, it was as the plant was sucking up the water through the channel from the roots. The water transported from the glass to her lips it was an example of the roots holding the water and transporting it to the plants by the channel.

Explanation:

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Scientific names are composed of two parts, genus, and specific epithet, this last one is the one that differentiates the species contained in a genus so in the present case we have the genus Phoebis, but not the specific epithet, therefore the correct answer is D, there is not enough information.

Answer:

Explanation:

Cells lining your stomach and small intestine make and release hormones that control how your digestive system works. These hormones tell your body when to make digestive juices and send signals to your brain that you are hungry or full. Your pancreas also makes hormones that are important to digestion.

Answer: DNA has thymine as one of the two pyrimidines while MRNA has uracil as its pyrimidines base.

Answer:

Explanation:

100m

500m

2500m

Since and only differ by one nucleotide, they make up a proper pair of sequences, option "4" is the best choice.

 ?

It can be correctly explained with the help of which is a technique used to determine the time when the two species diverged from a .

It uses the mutation rate to determine the same. rate is the rate at which a number of mutations take place in a given unit time.

For example, the rate of the given as one per 60 million years, that is, a mutation in one nucleotide takes place in 60 million years.

Thus, if the two species diverged around 60 million years ago from their common ancestor, then the nucleotide sequence of the two species must differ only in one nucleotide.

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Answer:

The true statement about the aquaculture is that It means “cultivating small acreages of land.”

The dependent variable in this experiment is D. The growth of the plants.

In conclusion, the dependent variable in this experiment is the growth of the plants. By manipulating the colors of light that the plants receive and measuring their growth over time, the scientist aims to determine the effect of light color on plant growth.

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Answer:

white

Explanation:

Answer:

white colour

Explanation:

when all colours are reflected back then we see white colour

Answer:

In my opinion the recipe for success would be determined by your mindset due to the fact that your mind conducts your next move if your mind stays focused on success how could you fail? You have to believe that you can succeed so that if a tasks would come to you, you wouldn't be phased by it because you believe you can already do it without even have done it .

Explanation:

Answer:

B. lungs where blood picks up oxygen and returns to the left side of the heart.

Explanation:

In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.

Generally, the cardiac cycle occurs in two (2) stages;

1. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.

2. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.

The cardiovascular system comprises of two circulatory paths:

I. Pulmonary circulation.

II. Systemic circulation.

Pulmonary circulation transports deoxygenated blood from the right side of the heart to the lungs where blood picks up oxygen and returns to the left side of the heart.

The pulmonary circulation loop is mainly supported (powered) by the right atrium and right ventricle.

Additionally, the right atrioventricular valve (AV) also referred to as the tricuspid valve is located on the right dorsal side of the human heart. The right atrioventricular valve (AV) comprises of three (3) leaflets (flaps) which opens and closes in order to allow for the flow of blood from the right atrium of the human heart to the right ventricle. Also, the right atrioventricular valve is saddled with the responsibility of preventing blood from flowing backward in the mammalian heart.

Answer:

Because of human-driven increased levels of carbon dioxide in the atmosphere, there is more CO2 dissolving into the ocean. The ocean's average pH is now around 8.1 , which is basic (or alkaline), but as the ocean continues to absorb more CO2, the pH decreases and the ocean becomes more acidic.

Scientists can compare the mtDNA profile of a collection of remains to reference samples taken from the mother, brother(s), sister(s), or any other maternally related individuals of a missing person thanks to the maternal inheritance of mtDNA.

A suspect's mtDNA sample is compared to an unidentified nuclear DNA sample that was discovered at the scene of the crime. The mtDNA sample of a suspect is compared to an unidentified mtDNA sample that was discovered at a crime scene.

When forensic experts gather materials from crime scenes or catastrophe zones, such as teeth, bones, and hairs without a follicle (root), they analyse mitochondrial DNA (mtDNA).

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Answer:

HOPE IT HELPS

Explanation:

Sharks have been around for over 400 million years, and throughout their evolutionary history, they have undergone a variety of changes. Some of these changes include the development of more streamlined bodies, the evolution of different teeth shapes and sizes, and the development of more efficient swimming techniques. These changes may have occurred due to a variety of factors, such as changes in the environment, changes in food sources, and competition with other species.

For example, the shark species I saw in this lab, the Great White Shark, has a unique set of adaptations that allow it to be an efficient predator. Its streamlined body and powerful tail allow it to swim quickly and efficiently through the water, while its sharp teeth and keen senses help it to locate and capture prey. Other shark species, such as the Hammerhead Shark, have evolved unique head shapes that help them to detect and capture prey in different ways. These adaptations may have evolved due to differences in food sources or competition with other species. Overall, the evolutionary history of sharks is complex and fascinating, and studying these patterns can help us to better understand how species adapt and evolve over time.

Sharks have undergone significant changes throughout their evolutionary history. Over millions of years, they have adapted and diversified to occupy various ecological niches in the marine environment. These changes can be observed in their anatomical features, reproductive strategies, and feeding habits.

One reason for the changes in sharks' evolutionary history is the need to exploit different food sources and habitats. Sharks have evolved different teeth shapes and jaw structures to suit their preferred prey, ranging from small fish to large marine mammals.

Additionally, changes in body shape and fin structure have enabled them to be efficient swimmers in different environments, such as open ocean or shallow coastal waters.

Another reason for evolutionary changes in sharks is competition and predation pressure. As new species emerge and ecosystems evolve, sharks have had to adapt to survive and thrive in changing conditions. Natural selection favors individuals with advantageous traits, leading to the emergence of new species and the extinction of less adapted ones.

In the lab, different shark species may exhibit variations in size, coloration, fin shape, and behavior. These differences reflect their evolutionary adaptations to specific environments and ecological roles.

Despite these variations, all shark species share common ancestry and basic characteristics such as cartilaginous skeletons, powerful jaws, and an efficient swimming ability, which have been refined over millions of years of evolution.

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Answer:

The earliest life forms we know of were microscopic organisms (microbes) that left signals of their presence in rocks about 3.7 billion years old. The signals consisted of a type of carbon molecule that is produced by living things.

Explanation:

The following statements about the recognition receptors of the innate immune system, such as toll-like receptors (TLRs), is correct: They recognize PAMPs such as viral nucleic acids, bacterial cell wall constituents, and terminal mannose residues.

Recognition enables personnel to see that their enterprise values them and their contributions to the achievement of their crew and the company's fulfillment. that is especially key while businesses grow or alternate. It allows personnel constructs an experience of security in their value to the organization, motivating them to hold superb paintings.

While leaders give their humans the popularity they have earned, show appreciation, and acknowledge the specific things people need to offer they'll power extensively higher consequences. place of business reputation motivates, gives a sense of achievement, and allows personnel to experience value for their work.

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Glucagon triggers your liver to convert stored glucose (glycogen) into a usable form and then release it into your bloodstream.

The pancreatic alpha cells that produce glucagon are peptide hormones. It is thought to be the body's primary catabolic hormone since it increases blood levels of glucose and fatty acids. Additionally, it is prescribed as medicine to treat a variety of medical ailments.

When the blood glucose level is too low, the pancreas produces glucagon. Glycogenolysis—the process by which the liver releases glucose into the bloodstream—is triggered by glucagon and occurs in the liver. On the other hand, high blood sugar levels encourage the production of insulin. Insulin-dependent tissues can absorb and utilize glucose with the help of insulin. As a result, the feedback mechanism that maintains steady blood glucose levels includes both glucagon and insulin. Energy expenditure is increased by glucagon, which is higher during stressful situations. The secretin family of hormones includes glucagon.

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Answer:

The correct answer is - Nematocycst.

Explanation:

Nematocysts are aquatic animals that contain stinging cells known as cnidocytes. These organisms are members of the phylum Cnidaria. These carry a organelle called cnida or cnidocyst.

An example of such an organism is Jellyfish. Sting cells are specialized neural cells that release extensive Golgi secretion venom that causes a stinging experience to the prey the nematocyst.