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Ask QuestionPosted by Riya ? 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
Parasites can be classified based on their size, characteristics, and relationship with the host:
- Endoparasites: A parasites living inside the host’s body. For example-Plasmodium falciparum, a parasite which causes malaria in humans.
- Ectoparasites: A parasites living outside the host’s body. For example- Bedbug, a parasite which causes skin irritation.
- Mesoparasites: These enter the opening of the body of a host and embed themselves only partially.
Posted by Rishabh Singh 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
Effects on Human Health: The humans will be directly exposed to the harmful ultraviolet radiations of the sun due to the depletion of ozone layer. This might result in serious health issues among humans such as skin diseases, cancer, sunburns, cataract, quick ageing, and weekend immune system.
Effects on Animals: Direct exposure to ultraviolet radiations leads to skin and eye cancer in animals.
Effects on the Environment: Strong ultraviolet rays may lead to minimal growth, flowering and photosynthesis in plants. The forests also have to bear the harmful effects of the ultraviolet rays.
Effects on Marine Life: Planktons are greatly affected by the exposure to harmful ultraviolet rays. These are higher in the aquatic food chain. If the planktons are destroyed the organisms present in the lower food chain are also affected.
Posted by Akshit Mathur 5 years, 8 months ago
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Sandli __Thakur_✍?✍? 5 years, 8 months ago
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Posted by Aditya Kumar 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
Premolars
Premolars are also called bicuspids and are located behind the canines. These teeth have a flat surface with ridges, which is adapted for crushing and grinding food into smaller portions. Humans have eight premolars, two on each side of the jaws.
Molars
Molars are the largest and strongest teeth. It has a large and flat biting surface, which is well-adapted for grinding food. Humans have 12 molars, six in each jaw. Four of those are wisdom teeth, which is also called the third molar, which come in between the ages of 17 to 25.
Posted by Shriyansh Dash 5 years, 8 months ago
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Arjun Kashyap 5 years, 8 months ago
Posted by Anushka ? 5 years, 8 months ago
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Meghna Thapar 5 years, 8 months ago
Diamonds were formed over 3 billion years ago deep within the Earth's crust under conditions of intense heat and pressure that cause carbon atoms to crystallise forming diamonds. This expansion causes the magma to erupt, forcing it to the Earth's surface and taking along with it diamond bearing rocks.
Posted by Anushka ? 5 years, 8 months ago
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Meghna Thapar 5 years, 8 months ago
Bone marrow is a spongy substance found in the center of the bones. It manufactures bone marrow stem cells and other substances, which in turn produce blood cells. Each type of blood cell made by the bone marrow has an important job. Red blood cells carry oxygen to tissues in the body.
Posted by Anushka ? 5 years, 8 months ago
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Meghna Thapar 5 years, 8 months ago
The medulla oblongata helps regulate breathing, heart and blood vessel function, digestion, sneezing, and swallowing. This part of the brain is a center for respiration and circulation.Besides the medulla oblongata, your brainstem also has a structure called the pons. The pons is a major structure in the upper part of your brainstem. It is involved in the control of breathing, communication between different parts of the brain, and sensations such as hearing, taste, and balance.
Posted by Anushka ? 5 years, 8 months ago
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Saisibani Behera 5 years, 8 months ago
Hitarth Hindocha 5 years, 8 months ago
Posted by Rahul Sharma 5 years, 8 months ago
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Stranger?♋ Things 5 years, 8 months ago
Posted by Pavan Nair 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
Plants is the kingdom of organisms that possess chlorophyll. They synthesis their food by the process called photosynthesis. Starch is synthesized during the process of photosynthesis and stored as reserved food material.
Posted by Affan Nadeem Khan 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
| Sl. No. | Differentiating Property | Resistance | Resistivity |
| 1 | Definition | Resistance is the physical property of a substance because of which it opposes the flow of current i.e. electrons. | Resistivity is the physical property of a particular substance which is having particular dimensions. |
| 2 | Proportionality | Resistance is directly proportional to the length and temperature while it is inversely proportional to the cross-sectional area of the material. | Resistivity is only proportional to the nature and temperature of the particular material. |
| 3 | Symbol | R | ρ |
| 4 | Formula | R = V/I or, R = ρ(L/A) V = Voltage, I = Current, ρ = Resistivity |
ρ = (R×A)/L
R = Resistance, L= Length, A = Cross-sectional area |
| 5 | SI Units | The SI unit of resistance is Ohms | The SI unit of resistivity is Ohms-meter. |
Posted by Bunty Chanty 5 years, 8 months ago
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Posted by Sk Singh 5 years, 8 months ago
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Navdeep Saini 5 years, 8 months ago
Posted by Sandli __Thakur_✍?✍? 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
The pressure required to prevent solvent from passing through a semipermeable membrane from a region of higher concentration of solute to a region of lower concentration of solute is called osmotic pressure. It is also a measure of the tendency of a solution to gain water by osmosis when separated by a membrane from pure water.
Arjun Kashyap 5 years, 8 months ago
Posted by Arjun Kashyap 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
Limitations of modern periodic table:
i. Uncertainty regarding the position of hydrogen whether it should be placed in IA group or VIIA group.
ii. No place for isotopes in the Modern periodic table.
iii. Lanthanides and Actinides kept separately under the table not kept within the Modern periodic table.
Posted by Himanshu Choudhary 5 years, 8 months ago
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Affan Nadeem Khan 5 years, 8 months ago
Posted by Akshit Mathur 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
Mucus protects the Inner lining of the Stomach(Mucosa) from its own secretion I.e. HCl as HCl is an Acid and causes the erosion of inner lining of Stomach..
Posted by Poonam Swain 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
| Attributes | Inhalation | Exhalation |
| What it means | Intake of air into the lungs | Expelling air out of the lungs |
| Type | Active process | Passive process |
| Size of the chest in the process | Increases, expands | Decreases, reduces |
| Diaphragm – role | Contracts, gets flattened by moving down | Relaxes, moves up forming a dome-shape |
| Intercostal muscle – role | Relaxation of internal intercostal muscles and contraction of external intercostal muscles | Contraction of the internal intercostal muscles and relaxation of external intercostal muscles |
| Lungs – volume | Rises to cause inflation | Reduces causing deflation |
| Action it causes | Supply of oxygen-rich air to the blood | Carbon dioxide is expelled out |
| Air composition | Inhaled air is a mix of oxygen and nitrogen | Exhaled air is a mix of nitrogen and carbon dioxide |
Posted by Akshit Mathur 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
The three types of cells found in gastric glands and their secretions are
- Mucus neck cells secrete mucus. Mucus provides lubrication and protection to the mucosal epithelium from the excoriating effect of HCl.
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Peptic or chief cells secrete pepsinogen. Pepsinogen converts proteins into proteoses which are further converted into peptones.
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Oxyntic cells or parietal cells which secrete HCl and intrinsic factors. HCl provides acidic pH 1.8 which is necessary for the action of pepsins. Intrinsic factors are required for the absorption of vitamin B12.
Posted by R G R 5 years, 8 months ago
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Posted by Anushka ? 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
Forebrain – Largest part of the brain
It is the anterior part of the brain. The fore brain parts include:
- Cerebrum
- Hypothalamus
- Thalamus
Forebrain Function: Controls the reproductive functions, body temperature, emotions, hunger and sleep.
Fact: The largest among the forebrain parts is the cerebrum. It is also the largest part of all vertebrate brains.
Hindbrain: The central region of the brain
The hindbrain is composed of:
- Cerebellum
- Medulla
- Pons
Hindbrain function: The three regions of the hindbrain coordinates all processes necessary for survival. These induce breathing, heartbeat, sleep, wakefulness and motor learning.
Posted by Aradhna Mehta 5 years, 8 months ago
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Aradhna Mehta 5 years, 8 months ago
Posted by Aradhna Mehta 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
| Autotrophic Nutrition | Heterotrophic Nutrition |
| Organisms prepare their own food using simple substances that are available in their surroundings | Organisms obtain their food by digesting organic compounds |
| Phototrophic and Chemotrophic are the two types of autotrophic nutrition | Holozoic, parasitic, symbiotic association, and saprophytic are the four types of heterotrophic nutrition |
| Plants are an example for autotrophic nutrition | Animals and some plants are an example for heterotrophic nutrition |
| Autotrophs are the producers in the food chain | Heterotrophs are the consumers in the food chain |
Anushka ? 5 years, 8 months ago
Posted by Nk Pal 5 years, 8 months ago
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Stranger?♋ Things 5 years, 8 months ago
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Stranger?♋ Things 5 years, 8 months ago
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