what do you predict would have happened if there were no valves present in the heart? how would this affect the human body?

Explanation:

It's beneficial to cerebral injured

1) osmotic and vasoregulatory - by promoting the flow of excess water from cerebral tissue to the blood via osmosis and decreasing edema in the vascular endothelium of injured tissues, thus lowering vascular resistance and allowing more blood flow;

2) hemodymanic - by effectively expanding plasma volume;

3) immunomodulatory - by preventing leukocytes from becoming activated and adhering to injured neurons and;

4) neurochemical - by counteracting detrimental excitatory amino acids through the normalization of neuronal cell membranes and by restoration of normal electrolyte and neurotransmitter levels in brain cells, and normal cell volumes.

According to the chart given below is It's beneficial to cerebral has been injured and osmotic and vasoregulatory by promoting the flow of excess water from cerebral tissue to the blood via osmosis.

Decreasing the edema in the vascular endothelium of the injured tissues, thus the lowering vascular resistance and just allowing more blood flow and hemodymanic by them effectively expanding the plasma volume immunomodulatory by preventing leukocytes from becoming activated state.

Adhering to the injured neurons and the neuro chemical by counteracting detrimental excitatory amino acids through the normalization of the neuronal cell membranes and by the restoration of the normal electrolyte and neurotransmitter levels in brain cells, and normal cell volumes.

Therefore, According to the chart given below is It's beneficial to cerebral has been injured and osmotic and vasoregulatory by promoting the flow of excess water from cerebral tissue to the blood via osmosis.

Learn more about  osmosis on:

https://brainly.com/question/1799974

#SPJ2

Answer:

Carbohydrates and fatty acids both provides glucose, which is energy for the body.

Any of a class of organic compounds that are polyhydroxy aldehydes or polyhydroxy ketones, or change to such substances on simple chemical transformations, as hydrolysis, oxidation, or reduction, and that form the supporting tissues of plants and are important food for animals and people.

Any of a class of aliphatic acids, especially palmitic, stearic, or oleic acid, consisting of a long hydrocarbon chain ending in a carboxyl groups that bonds to glycerol to form a fat.

Glucose is usually defined as a sugar, C6H12O6, having several optically different forms, the common dextrorotatory form (dextroglucose, or -glucose) occurring in many fruits, animal tissues and fluids, etc., and having a sweetness about one half that of ordinary sugar, and the rate levorotatory form (laevoglucose, or -glucose) not naturally occurring.

Fatty acids are converted into glucose by gluconeogenesis and used for energy during starvation.

Normally, insulin send carbohydrates in the form of sugar into our cells to provide us with energy.

Foods that contain carbohydrates include grains, fruits, dairy products, vegetables, and legumes.

The food sources of omega-3 fatty acids are fatty fish like rawas or Indian salmon, katla or tuna, nuts and seeds such as walnuts, flaxseed and chia seeds, and plant oils such as flaxseed oil, soybean oil, and canola oil. Fortified foods such as fortified eggs, curd or dahi, milk, soy beverages, and infant formulas are also rich sources of omega-3 fatty acids.

Learn more about carbohydrates and fatty acids:

#SPJ2

Researchers are interested in studying gene expression profiles of connective tissue. Given this, they should analyze gene expression for all of the connective tissues except muscle tissue. So the correct option is Option D.

Muscle is considered one of the tissues beside epithelial, nervous, connective tissue. And here the other options that of bone tissue, blood tissue and adipose tissues are considered as connective tissue. Muscles are considered as the largest soft tissues of the musculoskeletal system. There are generally three types of muscle tissues: skeletal muscle, cardiac muscle, and smooth muscle. Muscles contains a fundamental property which is called contractility. They contain the same contractile machinery.

For more information on muscle tissue, visit:

https://brainly.com/question/20210374

#SPJ4

Answer:

At each higher level of consumption, the amount of toxin is magnified.

Explanation:

Those predators all eat smaller secondary consumers, and those secondary consumers eat the primary consumers, which a lot of the times are exposed to DDT. For example bugs are often the primary target for DDT, once those bugs are exposed to the DDT they carry it in/with them. When a fish eats the bug, that fish is now exposed to the DDT. When the fish is caught and eaten by an eagle that eagle and its young are now being exposed to DDT. The DDT might not effect the full grown eagle for its lifetime but it does effect its young.

Predatory animals like owls are often threatened in habitats that have a more complex chemical composition due to the biomagnification and bioaccumulation of toxic substances in their bodies.

There are producers, consumers ,and decomposers are present in the food chain. The food chain starts with the producers, such as terrestrial plants, phytoplankton, herbs, etc.

The producer makes the food by photosynthesis, and this food is taken by the consumer. From the primary consumer/ herbivore, the energy and nutrients pass to the secondary consumer, and then to the tertiary consumer. After the deaths of the producer and consumer, they are decomposed by the decomposer.

If in an ecosystem there are chemicals present, then the chemicals attach to the plants' leaves and are consumed by the herbivores. The carnivores feed on herbivores, and the toxic material present in the herbivores is passed down to the carnivores. As a result, the toxic chemicals in the carnivores accumulate over time. This is called biomagnification. The owl is a carnivore that feeds upon the insect, so the magnification is seen.

Hence, the owl is threatened due to biomagnification.

To learn more about biomagnification, refer to the following link:

https://brainly.com/question/7631542

#SPJ5

Answer:

natural selection

Explanation:

People can breed cats for specific traits such as coat color through the process of _____.

descent with modification

natural selection

artificial selection

selection with modification

Answer:

Artificial Selection

Explanation:

cuz i said so

The correct answer for this question is 30;19

What are psychological disturbances?

The presence of a psychological disorder is signaled by significant disturbances in thoughts, feelings, and behaviors; these disturbances must reflect some kind of dysfunction (biological, psychological, or developmental), must cause significant impairment in one's life

What are the causes of Psychological Disturbances.

challenges in life that are stressful, such having money issues, losing a loved one, or getting divorced. a persistent (chronic) illness, like diabetes. damage to the brain caused by a severe insult (traumatic brain injury), like a concussion.

The complete question is:

In any given year, as many as _____ percent of the adults and _____ percent of the children and adolescents in the United States display serious psychological disturbances and are in need of clinical treatment.

10; 19

40; 19

30; 19

20; 19

To know more about Psychological Disturbances, click here:

https://brainly.com/question/25594619

#SPJ4

The fact that frogs can't live without water, and fish can't live without water, doesn't mean frogs have solved the problem of gills that breathe with mucous glands in moist skin.

When the frogs opens its mouth, water flows through the gills, and the blood in the capillaries absorbs the oxygen dissolved in the water. Then, just like humans, blood flows through the fish's body to carry oxygen. Water flows from the mouth to the gills. Oxygen is absorbed from water through the lamellae. The mouth closes, the gill cover opens, and water is forced out of the body along with carbon dioxide as a by-product (see photo). Aquatic animals such as mollusks, crustaceans, insects, fish, and amphibians are known to have 'gills' or gill-like respiratory organs. Not all aquatic animals breathe with gills. There are aquatic animals that have lungs as their respiratory organs & mucous glands.

To know more about mucous glands visit:

https://brainly.com/question/28045124?referrer=searchResults

#SPJ4

The step in excitation-contraction coupling in skeletal muscle indicated by "a" is the binding of acetylcholine (ACh) to nicotinic ACh receptors on the motor end plate of the muscle fiber.

Excitation-contraction coupling is the process by which an action potential in the muscle fiber membrane leads to muscle contraction. The process starts with the binding of ACh to nicotinic ACh receptors on the motor end plate. This binding leads to depolarization of the muscle fiber membrane, which spreads throughout the muscle fiber via the T-tubules.

Next, the depolarization of the T-tubules triggers the release of Ca2+ ions from the sarcoplasmic reticulum (SR) into the cytoplasm of the muscle fiber. These Ca2+ ions bind to troponin, which is part of the thin filaments in the muscle fiber, causing a conformational change in the troponin-tropomyosin complex. This conformational change exposes the binding sites on actin for myosin, allowing myosin to bind to actin and initiate muscle contraction.

Therefore, step "a" in excitation-contraction coupling is the binding of ACh to nicotinic ACh receptors on the motor end plate of the muscle fiber, which triggers depolarization of the muscle fiber membrane and initiates the procExcitation-contraction coupling is the process by which an action potential in the muscle fiber membrane leads to muscle contraction. The process is initiated by the binding of acetylcholine (ACh) to nicotinic ACh receptors on the motor end plate of the muscle fiber, which triggers depolarization of the muscle fiber membrane. This depolarization spreads throughout the muscle fiber via the T-tubules, which are invaginations of the muscle fiber membrane that penetrate deep into the interior of the muscle fiber.

The depolarization of the T-tubules triggers the release of Ca2+ ions from the sarcoplasmic reticulum (SR) into the cytoplasm of the muscle fiber. The SR is a specialized organelle in the muscle fiber that stores Ca2+ ions. When the depolarization of the T-tubules reaches the SR, it triggers the opening of Ca2+ channels on the SR, allowing Ca2+ ions to flow into the cytoplasm of the muscle fiber.

These Ca2+ ions then bind to troponin, which is part of the thin filaments in the muscle fiber. Troponin is a complex of three proteins that is bound to tropomyosin, another protein that lies along the actin filaments. The binding of Ca2+ ions to troponin causes a conformational change in the troponin-tropomyosin complex, which exposes the binding sites on actin for myosin. Myosin is a motor protein that interacts with actin to generate force, and its binding to actin initiates muscle contraction.

Overall, the process of excitation-contraction coupling is a complex sequence of events that involves the conversion of an electrical signal (the action potential) into a mechanical response (muscle contraction). It involves the coordinated action of many different proteins and organelles within the muscle fiber, and it is essential for the proper functioning of skeletal muscle.

To know more about excitation-contraction coupling.

https://brainly.com/question/28139662

#SPJ11

According to the given statement lysosomes enzymes are often found in which part of the cell.

Pancreatitis symptoms include the redness and inflammation of the pancreas. It could be chronic or acutely sudden (chronic). The two most frequent reasons are drinking alcohol and solid masses in the gallbladder (which can vary over time). The main objectives of treatment are to rest the pancreas and let it heal.

Mild acute pancreatitis will develop in a few days with rest and medicine. When your pancreatitis is more severe, you might also try the following additional treatments: Surgery. Your doctor can suggest cholecystectomy procedures to remove the gallbladder if stones are the source of your pancreatitis.

To know more about Pancreatitis visit:

https://brainly.com/question/15115137

#SPJ4

Which type of solution would cause a bacterium with a weak or damaged cell wall to burst as water moves into the cell?.

\( \mathfrak{WatanabeHaruto}\)

A 20-year-old man made the decision to plunge into the icy lake. In order to keep more blood in the warm centre of his body, many of the capillaries in the extremities will close down.

Two scientists, Schleiden (1838) and Schwann, put out the cell idea (1839). The basic unit if life, the cell, is described as being present in all plants and animals. Virchow (1855) added to the cell theory by proposing that all cells originate from pre-existing cells.

The largest cells are seen in ostrich eggs. The largest cell is the zebra egg, which is between 15 and 18 centimeters in length in width. Its longest cell type is the nerve cell. The largest cell in the human body is the female ovum.

To know more about capillaries visit:

https://brainly.com/question/29651472

#SPJ1

The explanation which should be selected to account for the changes in the population of beetles in this scenario is that  beetles with brown coloration survived with greater frequency in the original population, resulting in a greater frequency of brown beetles in subsequent populations which is therefore denoted as option D.

This is referred to as the total number of organisms which are present in an area over a given period of time and is dependent on various factors such as environment etc.

In this scenario, beetles with brown coloration survived with greater frequency in the original population. This therefore led to them undergoing reproduction with the others who have such color in the ecosystem.

The result will therefore be a greater frequency of brown beetles in subsequent populations due to it being a dominant color thereby making it the correct choice.

Read more about Population here https://brainly.com/question/25896797

#SPJ1

The options are:

A) Individual green beetles evolved to be less adapted, resulting in a change in allele frequencies in future generations.

B) Individual brown beetles evolved in the presence of the predator to be better adapted, making it more common in future generations.

C) Green beetles that survived the presence of the predator migrated to different populations, decreasing their frequency in the subsequent populations.

D) Beetles with brown coloration survived with greater frequency in the original population, resulting in a greater frequency of brown beetles in subsequent populations

The linkage relationships can vary depending on the distance between the genes and the frequency of recombination events. Additionally, genetic interactions between the three genes could also affect the inheritance patterns observed in the transformation classes.

The linkage relationships among genes can be inferred by analyzing the frequency of recombinant offspring in transformation classes. If the three genes are linked, they will not assort independently and will be inherited together more frequently than expected based on chance. Conversely, if the genes are unlinked, they will assort independently and the frequency of recombinant offspring will be closer to the expected frequency based on chance.

If the transformation classes show a low frequency of recombinant offspring, it suggests that the three genes are tightly linked and inherited together more often than not. Conversely, if the transformation classes show a high frequency of recombinant offspring, it suggests that the three genes are unlinked and assort independently.

However, it is important to note that linkage relationships can vary depending on the distance between the genes and the frequency of recombination events. Additionally, genetic interactions between the three genes could also affect the inheritance patterns observed in the transformation classes.

To know more about genes, refer

https://brainly.com/question/1480756

#SPJ11

Answer:

HAHAHAHAHAHAH

Explanation:

hmmmm is he acting up??

Answer:

Catalyst

Enzymes

I don't know the other one, I'm sorry. Give the first two a try tho

The muscle that is not considered as a muscle of the forearm is coracobrachialis.

Option C is the correct answer

What are muscles?

Muscles are tissues that are composed of cells or fibers that are capable of contracting, producing movement or exerting force, and maintaining tension or relaxing the body's various organs and tissues. There are muscles in the forearm, such as the pronator teres, flexor carpi radialis longus, and extensor digitorum, that aid in forearm movement.

The following is the description of the muscles mentioned in the question:

Pronator teres: Pronator teres is a muscle located in the human forearm that plays a role in pronation. It arises from the humerus and the coronoid process of the ulna, as well as the interosseous membrane, and inserts on the radius.

Flexor carpi radialis longus: The flexor carpi radialis longus is a long, thin muscle located in the forearm. It originates in the humerus's medial epicondyle and descends towards the wrist joint's flexor retinaculum. It functions as a flexor for the wrist joint's radial side.

Extensor digitorum: The extensor digitorum is a muscle that is located in the human forearm. It's a composite of three distinct muscles that are fused in the upper third of the forearm. It starts at the lateral epicondyle of the humerus and ends in the extensor expansion of the fingers' distal phalanges.

To know more about coracobrachialis refer here:

https://brainly.com/question/12432948#

#SPJ11

Answer:

Cohesion allows water to stick to itself.  

Solution:

Both insects and arachnids are arthropods. However, in the morphology of an insect, there are 6 legs. While in the morphology of an arachnid there are 8 legs. Also, arachnids do not have antennae, their head is not differentiated from the body but is typically divided into two main regions called the cephalothorax (prosoma) and the abdomen (opisthosoma). Spiders belong to the arachnids, therefore a spider is different from an insect. Therefore, a spider cannot be classified as an insect.

Answer:

B. 23

Explanation:

A cell that starts out with a diploid number of 46 chromosomes and ends up with a haploid number of 23 chromosomes. What process did this cell go through? answer choices ... Mitosis occurs in both body cells and sex cells while meiosis is only in sex cells. ... Daughter cells are produced with only half the chromosomes of the parent cell.

The sun is Earth's primary source of external energy. It perfectly heats our planet to the point where life can flourish.

Sunlight is a clean, renewable source of energy. It is a sustainable resource, meaning it doesn't run out, and can be maintained because the sun shines almost every day.

In one second the sun converts 4 million tons of mass into energy in the form of heat and electromagnetic radiation.

The solar constant is how much sunlight power reaches the earth. On average, this value is roughly 1400 watts-per-square-meter. In terms of energy, this equates to about 1.8 × 10¹⁷ joules/second.

Out of the average, total amout of mass the sun converts to energy, the earth captures only 6.25 × 10-⁸%. This is an extremely small percentage , but if it all could be harnessed to use for our electricity needs, we would have more than enough.

Solar energy is perennial and non-polluting.

Learn more about external energy, here:-

https://brainly.com/question/24612403

Annull mutation in which of these genes would cause ABC protein to be produced at normal levels but in the wrong location is MP. The main answer is MP.

ABC gene produces mRNA encoding the ABC protein, and ZBP1 protein binds Abc mRNA and prevents its translation. MP (motor protein) transports ZBP1-bound mRNA to its destination, while Src protein is located at the destination and causes ZBP1 to dissociate from mRNA, allowing it to be translated.

In a mutation, the characteristics of DNA are altered, resulting in different genes being expressed or the production of altered proteins. A mutation in the MP gene can cause the protein to be produced at normal levels but in the wrong location. As a result, mRNA bound with ZBP1 would not be transported to its destination.

The type of mutation that would interfere with the attenuation mechanism in the tryptophan operon is the deletion mutation. In the tryptophan operon, the attenuation mechanism is used to regulate the synthesis of tryptophan. When the tryptophan levels are low, the operon is activated, and transcription takes place, allowing the synthesis of tryptophan. When tryptophan levels are high, the attenuation mechanism is activated, and transcription is halted. A deletion mutation, which removes one or more nucleotides from the DNA sequence, can interfere with the folding of RNA, resulting in a premature termination of transcription, which will cause attenuation to fail.

Learn more about the tryptophan operon: https://brainly.com/question/29752304

#SPJ11

Following mitosis and cytokinesis, daughter cells are identical to each other and to the parent cell, with respect to their genetic information.

In the process of mitosis, the parent cell divides its DNA into two identical sets, and then, during cytokinesis, the parent cell separates into two daughter cells with the same amount of genetic information. Mitosis is the process of cell division in which a single cell divides into two identical daughter cells, each of which contains a full set of chromosomes (46 chromosomes in humans).During this process, the parent cell divides into two identical daughter cells with the same number of chromosomes and a full complement of genetic information. The primary reason for mitosis is the production of new cells during growth and development and the replacement of damaged or lost cells in the body.

Thus, the cells formed after mitosis and cytokinesis are the same as the parent cell with the same genetic makeup.

To know more about mitosis, click here

https://brainly.com/question/32255070

#SPJ11

Bro the answer is b your welcome

Answer:

their fins or webbled feet hels them to move and search food to eat .

Answer:

It is the duck foot

Explanation:

it has webbed feet

In order to prevent a process known as photo reactivation, the cells are kept in the dark when geneticists mutagenize cells with uv light in order to select mutants.

UV-inactivated organisms can regain their activity by repairing UV-induced damages in their DNA with the energy of near-UV light and the enzyme photolyase. Even though humans and other placental mammals do not appear to have a photoreactivation pathway, the photolyase gene has been maintained and may have evolved to play a role in the excision repair process. Photoreactivation appears to be the principal way for DNA damage repair in mature leaves. To eliminate CPDs photoproducts, the meristem may require both photoreactivation and excision repair. Because photoreactivation requires exposure to a sufficiently intense source of visible or UV-A light, little to no healing occurs under conventional laboratory illumination conditions.

Learn more about genetics here:

brainly.com/question/28980835

#SPJ4