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Pawan Chandra 4 years, 8 months ago
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Meghna Thapar 4 years, 3 months ago
Protozoa are small (but not simple) organisms. They are single-celled heterotrophic eukaryotes, which eat bacteria and other food sources. It is an old term, and the wider term protist is generally preferred today.
These are divided into four major groups.
(1) Amoeboid protozoans or sarcodines. They are unicellular, jelly-like protozoa found in fresh or sea water and in moist soil. ...
(2) Flagellated protozoans or zooflagellates. ...
(3) Ciliated protozoans or ciliates. ...
(4) Sporozoans.
Posted by Komal Shabi 4 years, 8 months ago
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Meghna Thapar 4 years, 3 months ago
Polyunsaturated fats can help lower your LDL (bad) cholesterol. Cholesterol is a soft, waxy substance that can cause clogged or blocked arteries (blood vessels). Having low LDL cholesterol reduces your risk for heart disease.
Polyunsaturated fats include omega-3 and omega-6 fats. These are essential fatty acids that the body needs for brain function and cell growth. Our bodies DO NOT make essential fatty acids, so you can only get them from food.
Omega-3 fatty acids are good for your heart in several ways. They help:
- Reduce triglycerides, a type of fat in your blood
- Reduce the risk of developing an irregulat heartbeat (arrhythmia).
- Slow the buildup of plaque in your arteries
- Slightly lower your blood pressure
Posted by Anshuman Singh 4 years, 8 months ago
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Priyanshu Kumar 4 years, 8 months ago
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Jivisha Srivastava 4 years, 8 months ago
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Priyanshu Kumar 4 years, 8 months ago
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Posted by Anshuman Singh 4 years, 8 months ago
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Priyanshu Kumar 4 years, 8 months ago
Posted by Anshuman Singh 4 years, 8 months ago
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Yogita Ingle 4 years, 8 months ago
Urea is synthesised in the liver. So, maximum amount of urea of urea is present in hepatic vein and minimum in Renal vein.
Posted by Anshuman Singh 4 years, 8 months ago
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Yogita Ingle 4 years, 8 months ago
Formation of RBCs is called erythropoiesis. It occurs in the liver and spleen in the foetus and in the red bone marrow after birth.
Priyanshu Kumar 4 years, 8 months ago
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Priyanshu Kumar 4 years, 8 months ago
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Yogita Ingle 4 years, 8 months ago
It is thin, fibrous, flexible connective tissue, which is mainly found in the external ear, larynx, respiratory tract, and the articulating surface of the joints. These cartilages lack blood vessels, therefore the growth and development of these tissues are slower compared to the other tissues. Altogether there are three different types of cartilages and it includes:
- Hyaline cartilage: It serves as a shock absorber and allows the smooth movement of the bones at joints. They are mainly found in the nose, respiratory tract, and joints
- Fibrocartilage is found in the knee, and it is tough and inflexible.
- Elastic cartilage is found in-ear, epiglottis, and larynx. It is the most flexible cartilage.
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Farhat Shaikh Shaikh 4 years, 8 months ago
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Yogita Ingle 4 years, 8 months ago
Onions produce the chemical irritant known as syn-propanethial-S-oxide. It stimulates the eyes’ lachrymal glands so they release tears.
Anshuman Singh 4 years, 8 months ago
Posted by Jivisha Srivastava 4 years, 8 months ago
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Meghna Thapar 4 years, 1 month ago
The shape of the calcium channel protein allows only calcium ions to pass through the channel. ... There the calcium ions interact with the neurotransmitter containing vesicles (membrane-bound containers) causing them to fuse with the cell membrane, and release the neurotransmitters into the synaptic cleft. Calcium (Ca2+) is a vital element in the process of neurotransmitter release; when Ca2+ channels are blocked, neurotransmitter release is inhibited. Storage of the neurotransmitter in storage granules or vesicles in the axon terminal. Calcium enters the axon terminal during an action potential, causing release of the neurotransmitter into the synaptic cleft. After its release, the transmitter binds to and activates a receptor in the postsynaptic membrane.
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