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Ask QuestionPosted by Apoorva Jain 6 years ago
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Kavitha Karthikeyan 6 years ago
Yogita Ingle 6 years ago
Biomagnification, also known as bioamplification or biological magnification, is the increasing concentration of a substance, such as a toxic chemical, in the tissues of organisms at successively higher levels in a food chain.
The accumulation and progressive increase in the concentration of non biodegradable, harmful chemicals at different tropic levels in a food chain is called bioconcentration or biomagnification.
Dipika Mohan 6 years ago
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Suryansh Agarwal 6 years ago
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Aditya?? Gujjar?♂️?️♂️ 6 years ago
Lucifer ? Morningstar? 6 years ago
Posted by Chhaya Sharma 6 years ago
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Yogita Ingle 6 years ago
When fats and oils are left open, they get oxidized in the presence of air, their smell and taste change. This means the oxidation is the main cause for rancidity in fats and oil.
Anjali Anil 6 years ago
Posted by Ratanraj Jaiswal 6 years ago
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Chhaya Sharma 6 years ago
Aadya Singh ? 6 years ago
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Lucifer ? Morningstar? 6 years ago
Posted by Brand Deva Gaming Gaming 6 years ago
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Vanshita Mittal 6 years ago
✳️ Roman ✳️ ( Syllabus Not Complete ) 6 years ago
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Ujjwal Pandey 6 years ago
Vanshita Mittal 6 years ago
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Yogita Ingle 6 years ago
Raphides are needle-shaped crystals of calcium carbonate or calcium oxalate found in specialized plant cells called idioblasts.
Posted by Aggarwal Kingdom 6 years ago
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Posted by Jaspreet Chhina 6 years ago
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Yogita Ingle 6 years ago
Here is the explaination of the four levels of the terrestrial type of food chain -
The first level is called producers and this consist of producers which are the green plants. Then comes the second level called the primary consumers like earthworms, which feeds on the green plants. Next is the secondary consumers like hens, birds which feeds on the earthworms. 4th level is the tertiary consumers including vultures, eagles, etc.
Posted by Aviral Goyal 6 years ago
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Posted by Sridhar Vijay 6 years ago
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Deepanshu Tyagi 6 years ago
Yogita Ingle 6 years ago
The brain is made of three main parts: the forebrain, midbrain, and hindbrain. The forebrain consists of the cerebrum, thalamus, and hypothalamus . The midbrain consists of the tectum and tegmentum. The hindbrain is made of the cerebellum, pons and medulla.
Cerebrum:The cerebrum is the largest part of the human brain, associated with higher brain function such as thought and action. The cerebral cortex is divided into four sections, called "lobes": the frontal lobe, parietal lobe, occipital lobe, and temporal lobe.
Frontal Lobe- associated with reasoning, planning, parts of speech, movement, emotions, and problem solving
- Parietal Lobe- associated with movement, orientation, recognition, perception of stimuli
- Occipital Lobe- associated with visual processing
- Temporal Lobe- associated with perception and recognition of auditory stimuli, memory, and speech
Thalamus- It is a large mass of gray matter deeply situated in the forebrain at the topmost portion of the diencephalon. The structure has sensory and motor functions. Almost all sensory information enters this structure where neurons send that information to the overlying cortex.
Hypothalamus- It is a part of the diencephalon, ventral to the thalamus. The structure is involved in functions including homeostasis, emotion, thirst, hunger, circadian rhythms, and control of the autonomic nervous system. It also controls the pituitary.
Midbrain- It is involved in functions such as vision, hearing, eyemovement, and body movement.
Cerebellum - The cerebellum has two hemispheres and has a highly folded surface or cortex. This structure is associated with regulation and coordination of movement, posture, and balance.
Pons-It is involved in motor control and sensory analysis. It has parts that are important for the level of consciousness and for sleep.
Medulla Oblongata-This structure is present between the pons and spinal cord. It is responsible for maintaining vital body functions, such as breathing and heartrate.
Shreya ... 6 years ago
Posted by Harjeet Kaur 6 years ago
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Deepanshu Tyagi 6 years ago
Posted by Shreyas Samarth 6 years ago
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Yogita Ingle 6 years ago
The factors that affect the lateral displacement of a light as it passes through a rectangular glass slab are:
1. The thickness of the glass slab: The lateral displacement increases with the increase in the thickness of the glass slab.
2. The angle of incidence: It increases with the increase in the angle of incidence.
3. The refractive index of glass: The wavelength of light used. (It is more for violet light than for red light).
Shreya ... 6 years ago
Posted by Shreyas Samarth 6 years ago
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Raunak Chauhan 6 years ago
Yogita Ingle 6 years ago
The current in a circuit depends on the rating of the appliances connected to it. The choice of wires depends upon the maximum current estimated to pass through them. If the total power rating of the appliances exceeds this permitted limit, they tend to draw a large current. This is known as overloading due to excessive heating takes place.
Overloading occurs when too many appliances are connected in a single socket or live and neutral wires come in contact with each other.
Shreya ... 6 years ago
Posted by Shreyas Samarth 6 years ago
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Posted by Shreyas Samarth 6 years ago
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Raunak Chauhan 6 years ago
Shreya ... 6 years ago
Posted by Shreyas Samarth 6 years ago
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Yogita Ingle 6 years ago
Feedback Mechanism :
♦ Timing and amount of hormones released by various glands is regulated by a mechanism called feedback mechanism.
♦ It is build up within our body.
For instance,
It is due to this mechanism, pancreases produce more insulin when blood glucose level rises. Insulin decreases glucose level.
Similarly, when blood glucose level falls than normal, pancreases produce more glucagon to increase glucose level in blood.
Thus, feedback mechanism is vital for proper functioning of our endocrine system.
Posted by Lucifer ? Morningstar? 6 years ago
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Yogita Ingle 6 years ago
Proteins are large molecules that our cells need to function properly. They consist of amino acids. The structure and function of our bodies depend on proteins. The regulation of the body's cells, tissues, and organs cannot happen without them.
Posted by Lucifer ? Morningstar? 6 years ago
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Yogita Ingle 6 years ago
CO2 is highly soluble in water, so it is mostly transported in dissolved form in our blood plasma.
Carbon dioxide produced in the tissue cells diffuses into the blood plasma. The largest fraction of carbon dioxide diffuses into the red blood cells. The carbon dioxide in the red blood cells is transported as dissolved carbon dioxide (7 per cent), combined with hemoglobin, carbaminohemoglobin (23 per cent) or as bicarbonate (70 per cent).
Posted by Charu Munjal 6 years ago
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Yogita Ingle 6 years ago
Except for carbon all the non-metals are below hydrogen in the activity series of the elements because of which Non-metals do not evolve hydrogen gas when react with water, steam or dilute acids.
Lucifer ? Morningstar? 6 years ago
Posted by Prabha Gala 6 years ago
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