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Posted by Aakash Sharma 5 years, 2 months ago
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K. Bhavana 5 years, 2 months ago
Sharma Homa 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
The process by which green plants make their own food (like glucose) from carbon dioxide and water by using sunlight energy (in the presence of chlorophyll) is called photosynthesis.
Posted by Dhanista Nongmeikapam 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
Speed of object in mirror = 2v
where v is original speed.
= 2(2)
=4m/s
Posted by Suhas Tirlapur 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
1. Fill in the blanks:
(a) The main steps of nutrition in humans are _________, __________, __________, _________ and __________.
(b) The largest gland in the human body is __________.
(c) The stomach releases hydrochloric acid and ___________ juices which act on food.
(d) The inner wall of the small intestine has many finger-like outgrowths called _________.
(e) Amoeba digests its food in the ____________ .
Solution:
(a) The main steps of nutrition in humans are ingestion, digestion, absorption, assimilation and egestion.
(b) The largest gland in the human body is Liver.
(c) The stomach releases hydrochloric acid and digestive juices which act on food.
(d) The inner wall of the small intestine has many finger-like outgrowths called villi.
(e) Amoeba digests its food in the food vacuole.
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<a href="https://mycbseguide.com/blog/ncert-solutions-for-class-7-science-nutrition-in-animals/" ping="/url?sa=t&source=web&rct=j&url=https://mycbseguide.com/blog/ncert-solutions-for-class-7-science-nutrition-in-animals/&ved=2ahUKEwjOoJX88K7tAhVWgtgFHVjJBwoQFjAAegQIBBAC" rel="noopener" target="_blank">NCERT solutions for Class 7 Science Nutrition in animals</a>
Posted by Radha Chouhan 5 years, 2 months ago
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Prem Mishra 5 years, 2 months ago
Posted by Prince Thakur 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
Cells cannot survive on their own. They need power to stay alive. They need energy to perform functions such as growth, maintaining balance, repair, reproduction, movement and defense. This means all living organisms must obtain and use energy to live.
While the sun is an excellent source of energy, not all forms of life can utilize the sun's energy directly. This lesson describes how plants transform the sun's energy into potential energy stored in sugar, how living organisms utilize energy in sugar to perform work, and how the relationship between photosynthesis and cellular respiration is necessary for life.
Posted by Anshika Singh 5 years, 2 months ago
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Posted by Nisha Kumari 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
The elements of weather which are required to be measured for comprehensive information are as follows:
(a) Temperature
(b) Atmospheric pressure
(c) Humidity
(d) Precipitation
(e) Wind speed and direction
(f) Cloud clever
(g) Amount of sunlight
Posted by Swati Singh 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
The breathing is controlled by the movement of diaphragm. Diaphragm is a membrane which is between the chest and abdomen. The movement of diaphragm is controlled by a group of muscles; called intecostalis muscles.
When the diaphragm moves down, the ribcage expands. This leads to the expansion inside the lungs. As a result, the air moves into the lungs. This process is called inspiration or inhalation.
When the diaphragm moves up, the ribcage contracts. This leads to contraction of the lungs. As a result, the air moves out of the lungs. This process is called expiration or exhalation.
Posted by Dhanashree Charwadikar 5 years, 2 months ago
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Posted by Rohan Udainiya 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
The uppermost horizon is generally dark in colour as it is rich in humus and minerals. The humus makes the soil fertile and provides nutrients to growing plants. This layer is generally soft, porous and can retain more water. It is called the topsoil or the A-horizon.This provides shelter for many living organisms such as worms, rodents, moles and beetles. The roots of small plants are embedded entirely in the topsoil.
Posted by Nihar Patil 5 years, 2 months ago
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Riddhi Rao Bittoo 5 years, 2 months ago
Posted by Mansi Jangid 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
Nervous system consists of special cells called nerve cells or neurons. It has a main cell body called cyton. It gives out many processes called dendrites. From it a very long process is given out. It is called axon or nerve fibre.
The cell body has a nucleus. The dendrites get the message from the organs and send this message to the axon through the cell body. Then the axon sends the message to muscles to contrast or to the gland for secretion.
The neurons make contact with one another through their processes. The axon at its end branches and meets the dendrites of another neuron. The meeting point is called synapse. The message is passed on from one axon to the dendrites of another neuron. How the message goes ? It is like this:
Organ → Message goes to dendrites →Cell body → Axon → Muscles or glands
Yogita Ingle 5 years, 2 months ago
Nervous system consists of special cells called nerve cells or neurons. It has a main cell body called cyton. It gives out many processes called dendrites. From it a very long process is given out. It is called axon or nerve fibre.
The cell body has a nucleus. The dendrites get the message from the organs and send this message to the axon through the cell body. Then the axon sends the message to muscles to contrast or to the gland for secretion.
The neurons make contact with one another through their processes. The axon at its end branches and meets the dendrites of another neuron. The meeting point is called synapse. The message is passed on from one axon to the dendrites of another neuron. How the message goes ? It is like this:
Organ → Message goes to dendrites →Cell body → Axon → Muscles or glands
Posted by Jiya V ✌✌?? Katagi 5 years, 2 months ago
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Avishkar Shelke 5 years, 2 months ago
Aryan Patidar 5 years, 2 months ago
Posted by Parth Burande 5 years, 2 months ago
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Posted by Chaitanya Bhaisare 5 years, 2 months ago
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Sharma Homa 5 years, 2 months ago
Mansi Jangid 5 years, 2 months ago
Akash Yadav 5 years, 2 months ago
Posted by I. Chinglembi Devi 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
Time taken by bus to travel 27km = 45minutes.
= 45/60 hours ..
therefore speed of bus in km hr= distance/time
= 27×60/45
=1620/45
=36km/hr..
time taken by bus to travel 27km = 45 mins=45×60sec.
distance travelled by bus in 45 mins = 27km
= 2700m..
speed of bus in m/sec =
=2700/2700
=1m/sec..
therefore speed of bus in km/hr = 36km/hr.
speed of bus in m/sec.=1m/sec..
Posted by Parth Shukla 5 years, 2 months ago
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Avishkar Shelke 5 years, 2 months ago
Posted by Somya Verma 5 years, 2 months ago
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Mansi Jangid 5 years, 2 months ago
Posted by Shagun Thakur 5 years, 2 months ago
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I. Chinglembi Devi 5 years, 2 months ago
Posted by Manshi Yash Maurya 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
Natural fibres are the fibres which are obtained from natural sources like plants and animals.
Posted by Roja Rojalin Paikaray 5 years, 2 months ago
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Posted by Ganavi Veena 5 years, 2 months ago
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I. Chinglembi Devi 5 years, 2 months ago
Posted by Hemant Chauhan 5 years, 2 months ago
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I. Chinglembi Devi 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Chloroplast is an organelle which is specifically present in green plants. It has a green coloured pigment called chlorophyll. This chlorophyll traps the sunlight and enables plants to make food, which animals can not.
Posted by Fathimath Muhsina 5 years, 2 months ago
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Hemanta Kumar Rout 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Woollen clothes are used in winter season.
Woolen clothes contains a large amount of trapped air. Since air is a bad conductor of heat it does not allow the body heat to flow out, as a result of which, we feel warm and comfortable.
Posted by Vanshika Upmanyu 5 years, 2 months ago
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Posted by Mayur Shinde 5 years, 2 months ago
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Kaushal Kumar 5 years, 2 months ago
Posted by Vaishnavi Dhadwal 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
Oersted's law is the law that a steady electric current creates a magnetic field around it. This was discovered on April 21, 1820, by Danish physicist Hans Christian Oersted(1777–1851), when he noticed that the needle of a compass next to a wire carrying current turned.
Posted by Yash Renose 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
Hemoglobin is a protein in your red blood cells that carries oxygen to your body's organs and tissues and transports carbon dioxide from your organs and tissues back to your lungs. If a hemoglobin test reveals that your hemoglobin level is lower than normal, it means you have a low red blood cell count (anemia).
Posted by Babu Sujit 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
When you stands in front of a small mirror. The image formed will appear to be of
Correct Answer: Same size and erect
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