On a laboratory exam a student is asked to determine if the cell under a microscope are plant cell or animal cells. Where might the student look for

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Answer 1
look for a cell wall or a large vacuole or a lysome

Related Questions

________ development involves growth and changes in the body and brain, the senses, motor skills, and health and wellness.

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PHYSICAL DEVELOPMENT involve growth and changes in ......... Physical development in humans starts from infancy up to late adolescent. Features of physical development include: development of motor skills, puberty, development of muscle and physical coordination, etc.
Final answer:

Physical development involves the growth and changes in the body and brain, senses, motor skills, and health and wellness. Examples include improving coordination through exercise or the development of a child's senses as they grow.

Explanation:

The development described in your question is known as Physical Development. This type of development pertains to the changes and growth that occur in a person's body and brain, encompassing motor skills, sensory abilities, and aspects of health and wellness. An example of physical development could be an individual improving their coordination through regular exercise, resulting in enhanced motor skills. Another example could be a child's senses developing as they grow, enabling them to see, hear, taste, smell, and touch more effectively.

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The australopithecus lineage went extinct about:

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Went extinct in East Africa and South Africa by 1.0 million years ago.

When a protein is denatured, why does it lose its functionality?

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Final answer:

Proteins lose their functionality when they undergo denaturation, a process in which they lose their shape. Denaturation can be reversible or irreversible, depending on the specific conditions. An example of irreversible denaturation is when an egg is fried or boiled, causing the albumin protein to denature and lose its clear appearance.

Explanation:

Denaturation is the process in which a protein loses its shape and, as a result, its functionality. This can occur due to changes in temperature, pH, or exposure to certain chemicals. Denaturation can be reversible if the protein's primary structure is preserved, allowing it to resume its function after the denaturing agent is removed. However, in some cases, denaturation is irreversible and leads to a permanent loss of function.

One example of protein denaturation is when an egg is fried or boiled. The albumin protein in the liquid egg white denatures when exposed to heat, causing it to change from a clear substance to an opaque white substance. It's important to note that not all proteins are denatured at high temperatures. Bacteria that survive in hot springs, for instance, have proteins that are adapted to function at those temperatures.

Correct folding of proteins is crucial for their function. Some proteins fold automatically, while others receive assistance in folding from protein helpers called chaperones.

What are the basic differences between milk cream and butter?

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Cream and butter are both are considered as dairy products, the two types of fat content.

Cream has a lower fat content while butter has a higher fat content and undergoes additional processing steps.

Milk Cream vs. Butter:

Cream: Contains a fat content ranging between 10% and 18%, often sold as half and half, coffee cream, or table cream.Butter: Made from sweet creams with a fat content of 30% to 40%, undergoes a process where fat separates from buttermilk, gets washed and kneaded for consistency, with added color and salt.Differences: Cream has a lower fat content compared to butter, which has a higher fat content and undergoes additional processing steps.

Many medications introduced into the bloodstream cannot directly affect the neurons of the cns because

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The answer to the question above is this: the endothelium of CNS capillaries forms a blood-brain barrier. The blood-brain barrier is actually a mechanism that the capillaries that carry blood to the central nervous system can do. What this barrier does is that it filters and only allows certain substances (and not all), that's why this cannot directly affect the neurons in the central nervous system.

What are the two main types of freshwater wetlands?

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im pretty sure ponds and marshes 

a person has a disorder that inhibits the production of thymosin. Which of the following would be a likely result ?

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The answer is most likely A.) A weakened immune system.

A natural immune-modulating peptide called thymosin Alpha 1 aids in both acute and chronic conditions. Disease, allergies, rheumatoid arthritis, infections, inflammation, and a preventative immune system boost are all treated with it. Thus, option A is correct.

What are the inhibits the production of thymosin results?

The thymosin hormone promotes the growth of T lymphocytes. White blood cells called lymphocytes travel through the thymus during your youth, where they are converted into T cells.

A hormone called thymosin is released by the thymus. Its main job is to promote the development of T cells, which are vital for the immune system. Additionally, thymosin helps B cells transform into plasma cells, which make antibodies.

A 5-Da polypeptide hormone called thymosin is released by the thymus gland. Thymosin-1 promotes the maturation of T lymphocytes in the thymus from precursor T cells.

Therefore, a person has a disorder that inhibits the production of thymosin results in weakened immune system.

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Most of the middle layer in the heart wall is composed of

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Most of the middle layer in the heart is composed of cardiac muscle cells

Any factor in an experiment that affects the results of the experiment is

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Is the independent variable which is what you are testing.

Why are most fertilizers rich in nitrogen and phosphorous

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Most fertilizers are made from animal (cow most of the time) waste. The animal waste is high in animal by products which are mostly nitrogen and phosphorus

He organ that produces bile salts that break down fats is the ____.

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In the liver, bile salts are formed. Because of their low surface tension, this contributes to the emulsification of fats found in the intestine and their absorption from the GI tract. These are bile’s components. It is because of the bile salts which give bile the ability to emulsify, mix, lipid in the aqueous environment in the intestine. Bile is the one responsible for the efficient digestion of lipids. Bile is secreted in the gallbladder down to the small intestine. It then breaks dietary fats into smaller particles called emulsification in the small intestine. The bile’s function is in the completeness of the digestion and absorption of fat.  

Emts are called for an unresponsive infant. when they arrive, they find the mother holding her child. she advises that the child became limp, blue, and stopped breathing. assessment reveals that the infant is conscious and crying, and has good muscle tone and pink skin color. the mother states that she will take her child to the doctor. the emts should:

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The EMT should inform the mother that although the crisis seem to have been resolved, it will be advisable for her to transport the child to the hospital via the EMT vehicle. This arrangement will help her to have immediate help it the situation develops again on the way to the hospital and at the same time it will enable the EMT personnel to monitor the child's behavior for any other emergency development. 

-URGENT-
Which of the following best describes sperm production in the male human reproductive system?


A.One diploid cell, with 46 chromosomes, undergoes meiosis to form four haploid sperm cells, with 23 chromosomes each.
B. Four haploid cells, with 23 chromosomes each, undergo mitosis to form one haploid sperm cell, with 23 chromosomes.
C. One diploid cell, with 46 chromosomes, undergoes mitosis to form four diploid sperm cells, with 46 chromosomes each.
D.Four haploid cells, with 23 chromosomes each, undergo meiosis to form one diploid sperm cell, with 46 chromosomes.

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I know it is meiosis and not mitosis, so I'm like 99% sure that it is A.
I think this because the 23 chromosomes then combine with the 23 chromosomes from the female to make 46.
So I'm pretty sure that it is A.

Answer:

A.One diploid cell, with 46 chromosomes, undergoes meiosis to form four haploid sperm cells, with 23 chromosomes each.

Explanation:

The diploid primary spermatocytes (2n=46) undergo meiosis I and forms two haploid secondary spermatocytes (n=23). The secondary spermatocytes undergo meiosis II and form total four sperm cells (n=23). Since the sperm cells are product of meiosis, they are haploid and each sperm cell have 23 chromosomes.

Which element is not found in abundance in the atmosphere?
A. Carbon
B. Nitrogen
C. Phosphorous

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C phosphorus is the least out of the three you have listed
Final answer:

Phosphorus is the element not found in abundance in the atmosphere, unlike carbon and nitrogen, which are part of the carbon cycle and naturally occur in the atmospheric gases.

Explanation:

The element phosphorus is not found in abundance in the atmosphere. Unlike carbon, which is part of the carbon cycle and can be found in the atmosphere as carbon dioxide, phosphorus does not have a gaseous phase under normal conditions on Earth. The phosphorus cycle is mainly based on the movement through the lithosphere, hydrosphere, and biosphere, rather than the atmosphere. Phosphorus is essential for life as it is a critical component of bones, teeth, and cellular structures, yet it is relatively rare in the Earth's crust and not readily available in the environment like carbon or nitrogen.

Which best describes a benefit of using DNA technology in medicine?

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what are the options? you can use DNA technology to fix specific proteins for different people
Medicines have fewer side effects. Because using DNA technology, doctors can prescribe medicines that benefit instead of clash with medical characteristics of a patient.

Hope that helps!

Explain why increased ecosystem diversity contributes to increased biodiversity in the biosphere answer

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A diverse set of ecosystems means that there will be a wide variety of selection pressures exerted on the organisms. Therefore, natural selection will act to bring out the best suited traits for that particular ecosystem. The more the ecosystems are diverse, the more will be the difference between the traits between the organisms that will survive. This means that the biodiversity will increase.

Diets extremely low in fat may be deficient in ________.

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Diets extremely low in fat may be deficient in ESSENTIAL FATTY ACIDS. Essential fatty acids are those fats which can not be synthesized by the body and which must be obtained from the food that the animal eat. Examples of essential fatty acids are linoleic and alpha linoleic fatty acids.

what is the involuntary movement of the muscles that move food through the digestive system.

Answers

peristalsis, hope I helped

Answer:

It is Peristalsis

Explanation:

I just did it

Pulmonary lobes are subdivided into bronchopulmonary segments that contain lobules, which are the functional units of the lung. which structure is directly involved in gas exchange during respiration?

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The structure that is directly involved in gas exchange during respiration would be the alveoli. These are tiny sacs located in the lungs that enable oxygen and CO2 to move through the lungs and the bloodstream. Its main function is for gas exchange. It allows oxygen to diffuse into the blood for transport to tissues and remove carbon dioxide from it as well.

Through which means are healthcare workers in the US most frequently exposed to blood or bodily fluids? A. Exposure of broken or abraded skin B. Skin injuries with contaminated sharp instruments such as needles and scalpels C. Human bites D. Contact with mucous membranes of the eyes, nose, or mouth

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The answer all of the above. US Health-care personnel are well-defined as persons whose undertakings include contact with patients or with blood or some body fluids from patients in a health-care, laboratory, or public-safety setting. The potential happens for blood and body fluid contact to other workers and the same codes of contact management could be useful to other settings. An interaction that might dwell personnel at danger for infection is well-defined as a

• Per cutaneous injury for example a needle sticks or cut with a sharp object.

• Interaction of mucous membrane.

• Non-intact skin for instance unprotected skin that is chapped, chafed, or tormented with dermatitis with blood, tissue, or other body fluids that are potentially infectious.

• Any straight interaction deprived of barrier protection to strenuous virus in a research laboratory or production facility is well-thought-out an exposure that needs clinical evaluation. For human bites, the clinical evaluation must contain the possibility that both the person bitten and the person who inflicted the bite were exposed to blood borne pathogens. The Transfer of infection only rarely has been reported by this route.

________ is stress-reduction technique whereby electronic equipment measuring a person’s involuntary (neuromuscular and autonomic) activity helps him gain a level of voluntary control over these processes.

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Biofeedback is stress-reduction technique whereby electronic equipment measuring a person’s involuntary (neuromuscular and autonomic) activity helps him gain a level of voluntary control over these processes.

Biofeedback therapy will help you to relax and control involuntary response related to stress like heart rate, sweating, temperature and blood pressure. The electronic equipment will let you know when there is any sign of stress, therefore you know when to calm down yourself.

The outer hair cells respond to sound by slightly tilting and changing length. because of the consequence of this, the action of the outer hair cells is called the _____.​
a. ​the cochlear amplifier
b. ​phase lock mechanism.
c. ​the tuning response
d. ​the traveling wave

Answers

The outer hair cells respond to sound by slightly tilting and changing length. because of the consequence of this, the action of the outer hair cells is called the cochlear amplifier. 

This activity of outer hair cells can amplify the vibration so it's called cochlear amplifier. A disturbance in this mechanism can cause hearing loss.

______________ selection favors organisms that have character values at both extremes of the phenotypic distribution.

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The answer is Disruptive

_____ systems have a membrane that separates the internal chemicals from the external chemical environment.

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Living systems have a membrane that separates the internal chemicals from the external chemical environment. 

Living organism has to keep their internal chemical level so they need to make a membrane that separates it from the external chemical environment. 

___________ is defined as the process used to render a surface or product free from viable organisms, including bacterial spores.

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Answer: Sanitization

Explanation:
Sanitization is also called disinfection. It is the process to remove bacterial spores and other pathogenic organisms from surfaces to make them sterile.

Sanitization is essential for cleaning wounds that could become breeding grounds for infection and disease.

Sanitization is also required in food preparation to keep cooking utensils and food handling equipment free from bacterial contamination.

Hiv, the virus that causes aids, was discovered in the early 1980s. because it is a relatively new virus, there are many myths and misunderstandings that surround this virus. false true

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The answer of this is true. It is because people would likely make up conclusions, misunderstandings and myths because of it because it is new and there are no further establishment or enough explanation of why it happened, that is why it is likely that people will make up stories about it.

Answer:

true

Explanation:

Any condition or factor that can be manipulated, controlled, or measured, is a _____

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The answer is variable. This is a vital part of any experiments and science projects this is basically any factor that can be controlled, changed, or measured in experimentation. Scientific experiments have quite a few types of variables. The independent variables are the ones frequently plotted on a chart or graph, but there are other kinds of variables you may come across like the dependent and controlled.

Which memory system has an unlimited capacity and can keep information for hours or decades?

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Memory system has an unlimited capacity and can keep information for hours or decades is called long term memory. Long term memory is defined as a system in which information can be stored permanently, manage and retrieve for later use. Long term memory is divided into three main parts; these are procedural, sematic and episodic memory. Procedural memory is accountable for knowing how to do things, though it doesn’t now include conscious thoughts. While, sematic memory is responsible for the general knowledge that includes knowing about the word’s meaning. Lastly, the episodic memory in which it involves conscious thoughts thus it is responsible for storing information about the various happenings in human life.

 

Final answer:

Long-term memory is the memory system with unlimited capacity, capable of storing information for hours, years, or even decades. It's similar to a computer's storage system and goes through encoding, storage, and retrieval processes. Memory enters sensory memory first, then short-term memory, before finally being stored in long-term memory with enough rehearsal.

Explanation:

The memory system that has an unlimited capacity and can keep information for hours or even decades is the long-term memory (LTM). LTM can be compared to a computer's storage system, serving as a place where information is permanently or semi-permanently stored. Memory has three basic functions: encoding, storing, and retrieving information.

The process of getting information into our memory system is called encoding. Storage is the retention of the encoded information, and retrieval is the act of getting information out of storage and into conscious awareness through recall, recognition, and relearning. Sensory, short-term, and long-term memory are the three distinct stages information must pass through for it to enter storage. This tripartite division of human memory and its comparison to a computer's processing system is laid out in Atkinson and Shiffrin's model of memory.

Information first enters our sensory memory for a period of less than a second to a few seconds. The information we pay attention to is then transferred into short-term memory. With regular rehearsal of this information, it moves into long-term memory for permanent storage. Overall, long-term memory has a practically limitless storage capacity and is divided into implicit and explicit memory.

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When did Lamarck publish his ideas on evolution?

A) late 1700s
B) early 1700s
C) early 1800s
D) late 1800s

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C) early 1800s

Hope this helps : )

Why is positive feedback helpful in blood clotting but unsuitable for the regulation of body temperature?

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The human body has two type of feedback mechanism, positive and negative feedback. Positive feedback is a cyclic process that amplifies the action of a system until a negative feedback response is obtained. Positive feed back is important in processes that must go to completion quickly, for instance blood clotting. But it is harmful in situations in which stable conditions must be maintained, for instance body temperature,  this is because it encourages departure from the state of stability. 

Final answer:

In summary, positive feedback loops are employed in blood clotting to quickly escalate the response until clot formation is complete, which is necessary for stopping bleeding. On the other hand, negative feedback loops are essential for body temperature regulation, as they help maintain constant conditions by counteracting changes away from the body's set point.

Explanation:

Blood Clotting and Body Temperature Regulation

Blood clotting is a process maintained by a positive feedback loop, where the presence of clotting factors leads to the amplification of the clotting response, and thus more clotting factors are produced. This reaction continues until the clot is formed, which is necessary to stop bleeding. Positive feedback loops are beneficial here as they lead to the rapid escalation of the body's response until the endpoint - a stable clot - is reached.

However, body temperature regulation requires a negative feedback mechanism. When the core body temperature strays from the set point, homeostatic responses such as sweating or shivering are triggered to bring it back to normal. As opposed to the positive feedback loop, this negative loop ensures a stable body temperature by making adjustments that counteract the initial change, rather than amplifying it.

Given that positive feedback loops may push the system away from the set point and can be potentially harmful if not properly concluded, they are unsuitable for continuous processes like body temperature regulation that require constant fine-tuning to maintain stability.

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