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Preeti Dabral 2 years, 4 months ago

The process in which complex food materials are broken into simpler and absorbable substances is called digestion.

Naitik Dhingra Naitik Dhingra 1 year, 2 months ago

What is AI

Priyansh Ekka 1 year, 11 months ago

What is cell
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Kumar Karan 1 year, 5 months ago

•Plant cell have cell wall. •It have a large vacoule to store water.its is largest cell organelles in plant cell. •plant cell have plastid to helps in Photosynthesis. •lysosomes, centrosome are absent in plant cell. •Nucleus is the largest cell organelles in the animal cell. •Do not contain plastids. •have a small vacoule. •it contain lysosome, centrosome etc.
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Yogita Ingle 3 years, 3 months ago

  • The sac-like structures in a cell surrounded by membrane are called lysosomes.
  • They keep the cells clean by digesting and breaking the outside materials like bacteria, food entering the cell or worn-out cell organelles into small pieces.
  • They can digest these organic materials due to the presence of strong digestive enzymes that can brreak down organic compounds. Therefore, lysosome is also known as a suicide sac.
  • Many scientists believe that lysosomes are not present in plant cells and their function of lysosomes in plants is performed by vacuole.

??? ?? 3 years, 3 months ago

A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria.
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??? ?? 3 years, 3 months ago

A group of cells which have similar orgin same structure and perform a spespecialized function in an organ of an organism is knawn as tissue

Archita Archita 3 years, 4 months ago

Mansi Singh 3 years, 4 months ago

A group of cells which have similar orgin same structure and perform a spespecialized function in an organ of an organism is knawn as tissue.

Shafaqat Aara 3 years, 4 months ago

A group of cells which have similar orgin same structure and perform a spespecialized function in an organ of an organism is knawn as tissue
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Gaurav Seth 3 years, 5 months ago

The Circulatory System is the system of organs in the human beings and other animals which is responsible for transport of materials inside the body. It consists of heart, arteries, veins, capillaries and blood. The heart acts as a pump to push out blood. The arteries, veins and capillaries act as pipes or tubes through which the blood flows. These tubes carries blood are called blood vessels. So, there are three types of blood vessels in the human body: arteries, veins and capillaries. Now in detail we will understand all the parts of the circulatory system.

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Yogita Ingle 3 years, 6 months ago

Epithelial tissue or epithelium forms the outer covering of the skin and also lines the body cavity. It forms the lining of respiratory, digestive, reproductive and excretory tracts. They perform various functions such as absorption, protection, sensation and secretion.

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Meghna Thapar 3 years, 7 months ago

Areolar connective tissue – It is the simplest and most widely distributed connective tissue. It is found between the skin and muscles, around blood vessels and nerves and in the bone marrow. It fills the space inside the organs, supports internal organs and helps in repair of tissues.

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Ankit Sahu 3 years, 8 months ago

Many cell combine and made tissue

Meghna Thapar 3 years, 8 months ago

 Tissues are groups of cells that have a similar structure and act together to perform a specific function. The word tissue comes from a form of an old French verb meaning “to weave”. There are four different types of tissues in animals: connective, muscle, nervous, and epithelial. In biology, tissue is a cellular organizational level between cells and a complete organ. A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function. Organs are then formed by the functional grouping together of multiple tissues.

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Palak Lakhotiya 3 years, 7 months ago

Stiffness , hardness and support to plant

Renu Nagpal 3 years, 9 months ago

Gives hardness to plants

Renu Nagpal 3 years, 9 months ago

Gives medicinal support
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Yogita Ingle 3 years, 9 months ago

Genes are located in the chromosomes in the nucleus of the cell.

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See You 3 years, 8 months ago

Tatti se

Ankit Sahu 3 years, 8 months ago

Cork is made from plant waste product
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Mastermind . 3 years, 8 months ago

The answer is as follows:- 1) Nucleus 2) Mitochondrian
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Sparsh Sen 3 years, 11 months ago

Because it is caused by sexually transmission...

Yogita Ingle 4 years, 5 months ago

AIDS causing virus HIV that comes into the body via the sexual organs or blood transfusion will spread all over the body through lymph nodes. The virus damages the immune system of the body and due to this the body can no longer fight off many minor infections. Instead, every small disease like cold can become severe pneumonia or minor gut infection can become severe diarrhoea with blood loss. The effect of disease becomes very severe and complex, at times killing the person suffering from AIDS. Hence, there is no specific disease symptom for AIDS but it results in a complex disease. Therefore, it is known as a syndrome.

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Yogita Ingle 4 years, 5 months ago

Immunization is a way of protecting against serious diseases. Once we have been immunized, our bodies are better able to fight these diseases if we come into contact with them. It is the process by which an individual's immune system becomes fortified against the pathogens or Immunization is a way of protecting our body against serious diseases. Once we have been immunized, our bodies are better able to fight these diseases if we come into contact with them any time in future.

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Yogita Ingle 4 years, 5 months ago

Infectious diseases can spread through the following means-
1. through air ( air borne diseases )- when the person is exposed to air contaminated with germs.

2. through water ( water borne diseases ) - when the person consumes contaminated water.

3. through direct touch - when the person comes in direct contact with the infected patient.

 

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Yogita Ingle 4 years, 5 months ago

(i)Signs are what a doctor sees, symptoms are what a patient experiences.
(ii) A symptom can be defined as one of the characters of a disease whereas sign is the definite indication of a specific disease.
(iii)Signs are called objective i.e they can be felt, heard or seen. Bleeding, bruising, swelling and fever are signs but symptoms are subjective i.e they are not outwardly visible to others. It is only the patient experiences the symptoms.

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Yogita Ingle 4 years, 5 months ago

INFECTIOUS DISEASES

NON-INFECTIOUS DISEASES

1. Caused due to attack of pathogens

1. Caused by factors other than pathogens

2. Caused due to extrinsic factors

2. Caused due to intrinsic factors

3. Transmitted from one person to another

3. Do not get transmitted from one person to another

4. Transmission of diseases occurs through direct contact or some medium (air, water, vectors)

4. Transmission in case of hereditary diseases is from parent to offspring

5. Community hygiene can reduce the occurrence of these diseases

5. Community hygiene is ineffective in reducing the occurrence of these diseases

E.g. Cholera, Malaria

E.g. Diabetes, Goitre

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Insha Iqbal 3 years, 11 months ago

What is science

Jyotsna Agarwal 4 years, 6 months ago

Science is practical
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Yogita Ingle 4 years, 7 months ago

Biodiversity is the occurrence of diverse or varied forms of living beings which differ from one another in external appearance, size, color pattern, internal structure, nutrition, behavior, habitat etc.

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Yash Singh 4 years, 7 months ago

chaitin
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Mastermind . 3 years, 8 months ago

Function of liver is the storage of bile juice which is produced by gall bladder.

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