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Biology

Biology is a branch of science that studies the nature of life from the smallest parts of living things to the largest plants and animals. Ask and answer questions about the living world and its wonderful inhabitants in this category!

500 Questions

What is a charged ion?

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Asked by Wiki User

When an atom has gained or lost electrons.

We have the Hydrogen atom ; 1 proton and 1 electron .

Then we have the hydrogen ion ; 1 proton and no eletrons (Denoted as H^+)

Conversely we have the chlorine atom ; 17 protons, 18 neutrons and 17 electrons

The we have the chloride ion ; 17 protons, 18 neutrons and 18 electrons ( denoted as Cl^-).

NB An atom that has becomes charged is known as an ION. It is no longer an atom.

Positively charged ions are known as CATIONS and negatively charged ions are known as ANIONS.

Group of atoms can form ions too . Notably the sulphate ion (SO4^2-) of the Nitrate ion ( NO3^-)

There are many different cations and anions.

What is osseous pathology?

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Asked by Wiki User

Osseous pathology is the branch of medical research that studies diseases and anomalies of the skeletal system, which includes bones and joints. This specialty examines, diagnoses, and treats a variety of bone-related problems, including congenital disorders, acquired diseases, and traumatic injuries. Osseous pathology refers to a wide range of conditions, including bone cancers, metabolic bone diseases, bone infections, and degenerative joint diseases. The insights gained from osseous pathology are critical in designing effective treatment regimens for a wide range of skeletal system diseases, whether through surgical treatments, medicinal care, or rehabilitation.

This is the basic concept of osseous pathology. Students who want to learn more about pathology and different concepts of pathology can opt for an online course – Pathology for UnderGrads by Prof Harsh Mohan, Prof Ramadas Nayak and Dr Debasis Gochhait on DigiNerve.

The course’s video lectures and notes provide clear and easy to understand explanations in an interesting manner which makes the learning easier for students. The course also comes with self-assesment questions, through which students can analyze their learnings from the course, find their weak areas and work on them to ace the subject.

These all things makes this course the best and first choice of students and I would highly recommend this course to each one of the students.

What are the functions of a xylem vessel?

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Asked by Wiki User

Xylem vessels are a part of the plant's vascular system, responsible for the transport of water and minerals from the roots to the rest of the plant. The primary functions of xylem vessels include:

  1. **Water Transport:** Xylem vessels are specialized tubes that conduct water absorbed by the roots from the soil. This upward movement of water is essential for various physiological processes in the plant, such as photosynthesis and cell expansion.

  2. **Mineral Transport:** In addition to water, xylem vessels also transport minerals and nutrients dissolved in the water. These minerals are taken up by the roots and transported upward through the xylem to reach different parts of the plant where they are needed for growth and metabolic activities.

  3. **Support and Structure:** Xylem vessels, along with other xylem elements like fibers and parenchyma cells, contribute to the structural support of the plant. They provide rigidity to the plant and help in maintaining its overall architecture.

  4. **Transpiration Pull:** Xylem vessels participate in a process known as transpiration pull. As water evaporates from the leaves through small openings called stomata, it creates a negative pressure (suction) that pulls water upward through the xylem vessels. This helps in the movement of water against gravity.

  5. **Storage of Water and Nutrients:** Xylem vessels can also store water and nutrients during periods of abundance, serving as a reservoir that the plant can tap into during times of water scarcity or nutrient demand.

It's important to note that xylem vessels are one of the two main types of transport tissue in plants, with the other being phloem. While xylem transports water and minerals upward, phloem transports sugars and other organic compounds produced during photosynthesis throughout the plant. Together, xylem and phloem form a complex vascular system that supports the life and functioning of the entire plant.

What is the greek name for velociraptor?

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Velociraptor means Quick plunder

Is fatty acids a lipid?

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Most lipids are composed of some sort of fatty acid arrangement. The fatty acids are Fatty acids are composed of a chain of methylene groups with a Carboxyl functional group at one end.

What are disadvantages of enzymes?

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Specificity: Enzymes are highly specific in their actions. Each enzyme typically catalyzes a particular chemical reaction or a limited set of reactions. This specificity can hinder their use in some industrial applications where a broader range of reactions may be desired.

How do you stop humping things and what is it called when you hump things?

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Asked by Watervaper12

You can’t really stop h.u.m.p.i.n.g things because as soon as your body realises you like it you will start doing it more often.

What happens tp people who don't know toothpaste from putty?

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This is a joke that has been around for years. When people cannot tell the difference between toothpaste and putty, their windows fall out.

Analogy for chlorophyll?

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The skin cells control our bodies skin tone, the Chloroplast controls the leafs color.

What island is the largest?

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The largest island near the Australian mainland is Tasmania. Tasmania is an island state of Australia, located about 240 km (150 miles) to the south of the mainland. It is separated by the Bass Strait. If you are inquiring about the largest island globally, that title goes to Greenland, followed by New Guinea and Borneo.

What is toxicology?

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Toxicology is the study of poisons or hazardous substances and how they influence living organisms such as humans. It assists us in understanding the adverse effects of chemicals, medications, and other substances on the body, as well as how to avoid or treat poisoning. Toxicologists study how much of a material is required to produce harm, how it enters and moves through the body, and how the body responds to it. This knowledge is critical for assuring product, pharmaceutical, and environmental safety.

You can know more about toxicology and learn toxicology concepts through an online course - Forensic Medicine and Toxicology for UnderGrads.

The course is a perfect course for students looking to know about toxicology, as it provides in-depth explanations of topics and provides them with a tremendous amount of knowledge, which helps them in laying a strong foundation for their future.

Are eggs a living thing?

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Asked by Wiki User

if a bird laying an egg without mating then it does not have the power to reproduce so it is a non living thing

if a bird laying an egg after mating then it will reproduce so it is a living thing:)

Can the human body drain a battery?

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Asked by Wiki User

While it is indeed true that all animals give off minute electromagnetic energy, no person can drain a battery no matter how much moving they did. The battery would drain of age before that happened.

I must respectfully disagree. The degree of electromagnetism varies person to person and is often an inherited condition. I can only wear a watch for two to three days before the battery goes dead. Any time I touch metal a visible spark can be seen and felt! Also, certain machines will power down, even during full use just by simply walking past them. In my case I believe it's an inherited condition, I have a few family members who cannot even ride in cars with computers without the entire electrical systems fully melting down. However, I have been able to find only a handful of other cases similar to my own and even fewer similar to my family members. But it is completely possible for the human electromagnetic field to drain even car batteries.

I find this phenomenon interesting. Although it sounds impossible we have to remind ourselves that many things we know as fact today were considered impossible in history. With that said, my interest in this topic lies with the fact that a good friend of mine has this ability. She recently went through 4 battery packs in a walky-talky during a hazard drill. Each pack was fully charged when given to her. Everyone else's lasted the full 8 hours. She could only get about 2 hours out of each. So I started researching things like Bioelectromagnetism, and bioelectricity. I found that based on Sodium, Potassium, Protein, and a few other elemental levels in the human body, the human cells produce a bioelectrical "charge" to adjust the element levels to where they need to be. This led me to think that it was a case of diet, or % body fat that enabled this ability. My friend is extremely fit and muscular so body fat would be extremely low. Low body fat would lead to lower electrical impedance making it easier for electrical current to travel through the body. A walky talky, like a watch or phone, is always running and therefore sending out some frequency which draws on the battery. My current "theory" is that her low fat body is a much better conductor (or would it be insulater?) than the average person since it will have more water. Therefore the body is drawing in the frequency better. Because it's getting drawn into her instead of broadcasting the device has to work harder to broadcast and is therefore draining the battery.

How does sweating help humans to maintain a constant body temperture?

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Asked by Wiki User

By sweating, your body removes some of the heat that is trapped in your body. When you sweat, water is released through the pores on your skin. The water/sweat that is on your skin contains some of the excess heat from inside your body. Eventually the sweat will evaporate or be wiped away, taking the excess heat with it.

Why do you use a reagent blank and not just distilled water to zero the spectrophotometer?

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Asked by Wiki User

I know exactly what this question is from. This is an experiment testing the amount of dissolved iron in a solution, correct? If so, then this is the answer I came up with:

The solutions being tested are not simply iron dissolved in water; they contain other substances, like sulfuric acid, sodium citrate, etc. These other materials will affect the absorption of the sample solutions, so they must be zeroed out. Using only distilled water does not effectively account for this, so a reagent blank, having been treated in the same way as all of the other solutions, must be used instead.

This answer was not confirmed by my professor, but it is what I came up with, and it sounds reasonable to me. Hope that helps!

List six characteristics that all living things share?

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Asked by Wiki User

  • Grows and develops
  • Responds to its surroundings
  • Reproduces
  • Excretes waste
  • Energy (uses)
  • Contains chemicals
  • Cells (has)

What is the relationship between the size of the shadow and the distance of the object from the light source?

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Asked by Wiki User

The relationship between the size of a shadow of an object and the distance of light source from the object is indirectly proportional. A short distance will make the shadow big while making the distance long will reduce the size of the shadow.

What is cutaneous pathology?

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Asked by Wiki User

Cutaneous pathology is the branch of pathology that is concerned with the research and diagnosis of skin diseases. Pathology is a medical specialty that studies the nature and causes of diseases by analysing tissues, organs, and bodily fluids to understand and diagnose disorders. The focus of cutaneous pathology is on skin-related disorders.

Cutaneous pathology includes a wide variety of skin problems, such as inflammatory skin diseases, infectious skin diseases, neoplastic (cancerous and non-cancerous) abnormalities, and other dermatologic manifestations of systemic diseases. Pathologists that specialize in cutaneous pathology examine skin biopsies, dermatologic surgery specimens, and other materials to discover and diagnose abnormalities at the microscopic level.

You can learn more about pathology and different concepts of pathology through an online course Pathology for UnderGrads on DigiNerve.

This course offers relevant case discussions with each topic to improve students' knowledge and provide a clinical orientation. Many histological and gross photos, as well as specimens, have been included to assist students in better understanding the material.

It also includes theoretical and practical components, as well as significant problems for university examinations, PG entrance tests, and viva voces, which are highlighted in the videos. Overall, it is an excellent course for students, and I would strongly recommend it to all of them.

What is Felix Dujardin contribution to biology?

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Felix discovered the "CYTOPLASM" the jelly-like structure of the cell.

What are the characteristics of makahiya?

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one of the characteristics are the irritability,colors,and movement

List of all the seven characteristics of living things?

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I am taking Biology class in school and there are actually eight listed. They aren't in any particular order, these are just in the order that I remember them. 1. Has cells 2. Responds to Stimulus 3. Has organization (cells, etc) 4. Evolves over time 5. Homeostasis (maintains internal body conditions) 6. Reproduction 7. Needs Energy (food) 8. Grows and Develops

How does sickle cell hemoglobin differ from normal hemoglobin?

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Asked by Wiki User

Sickle cell hemoglobin differs from normal hemoglobin primarily due to a single amino acid substitution in the hemoglobin protein chain. In sickle cell disease, a person inherits two copies of an abnormal hemoglobin gene, usually referred to as HbS.

In normal hemoglobin (HbA), the amino acid glutamic acid is present at a specific position in the beta chain of the hemoglobin protein. However, in sickle cell hemoglobin (HbS), this glutamic acid is replaced by valine due to a genetic mutation. This change causes the hemoglobin molecules to stick together under certain conditions, forming long, rigid structures that distort red blood cells into a sickle or crescent shape.