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Ask QuestionPosted by Youg Jain 5 years, 11 months ago
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Posted by Dakshita Dharwal 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Functions of areolar tissue:
(i) It helps in supporting internal organs.
(ii) It helps in repairing the tissues of the skin and muscles.
Posted by Dakshita Dharwal 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Three features of cardiac muscles are:
- Cardiac muscles are involuntary muscles that contract rapidly, but do not get fatigued.
- The cells of cardiac muscles are cylindrical, branched, and uninucleate.
- They control the contraction and relaxation of the heart.
Posted by Dakshita Dharwal 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
1- lysosome: Intracellular digestion of food in unicellular organisms.
2-ribosome : Synthesis of Proteins
3-chloroplast : The most important function of the chloroplast is to synthesize food by the process of photosynthesis.
4-vacuole:
- Store cell sap which may be liquid or solid food, toxic byproduct.
- Provide rigidity and turgidity to plant cell
5-Golgi complex
- Modification, Packaging, and transport of materials
- Synthesis of lysosomes, plasma membrane
Posted by Dakshita Dharwal 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
It is the process of movement of water from its high concentration region to its low concentration region through semi-permeable membrane.
(i) Hypotonic Solution:
If the medium surrounding the cell has a higher water concentration than the cell, i.e., if the solution is very dilute solution, then the cell will gain water by osmosis. Such dilute solution is called Hypotonic solution.
(ii) Isotonic Solution:
If the medium surrounding the cell is of exactly the same water concentration as inside the cell, there will be no net movement of water across membrane resulting in no change in size of cell. Such solution is called Isotonic solution.
(iii) Hypertonic solution:
If the medium surrounding the cell has a lower water concentration than inside the cell, i.e., if the solution is highly concentrated, then the cell will lose water through osmosis. Such concentrated solution is called Hypertonic solution.
Posted by Dakshita Dharwal 5 years, 11 months ago
- 3 answers
Aarav Nirwal 5 years, 11 months ago
Naman Pundir 5 years, 11 months ago
Yogita Ingle 5 years, 11 months ago
Acceleration is a measure of the change in the velocity of an object per unit time and mathematically it is given as
Acceleration = change in the velocity / time taken
If the velocity of an object changes from an initial value u to the final value v in time t, the acceleration a is given by,
a = v - u/t
SI unit of acceleration is ms-2.
Posted by Dakshita Dharwal 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
During the storage of grains, various biotic factors such as insects, rodents, mites, fungi, bacteria, etc. and various abiotic factors such as inappropriate moisture, temperature, lack of sunlight, flood, etc. are responsible for losses of grains. These factors act on stored grains and result in degradation, poor germinability, discolouration, etc.
Posted by Dakshita Dharwal 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
| Angiosperms | Gymnosperms |
| A seed is produced by flowering plants and is enclosed within an ovary | A seed is produced by non-flowering plants and are unenclosed or naked. |
| The lifecycle of these plants are seasonal | These plants are evergreen |
| Has triploid tissue | Has haploid tissue |
Thallophyta Bryophyta Pteridophyta Plant body is thallus. It is not differentiated into root, stem and leaves. ... Plants have true roots, stems and leaves. There is no vascular system (i.e., conducting tissue which can transport water, minerals and food.
Monera
1. Monerans are unicellular organisms’ exhibiting prokaryotic cellular organization.
2. Reproduction is only by asexual means.
Ex. Bacteria, Cyanobacteria.
Protista
1. Protista are unicellular organisms but exhibit eukaryotic cellular organization.
2. Reproduction is by both asexual and sexual methods.
Ex. Unicellular algae, diatoms, protozoans.
Posted by Dakshita Dharwal 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
- Starfish : Echinodermata (free living marine animals)
- Cockroach:- rthropoda
- Spongilla - Porifera
Posted by Vansh Yadav 5 years, 11 months ago
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Shivam Pal 5 years, 11 months ago
Posted by Vansh Yadav 5 years, 11 months ago
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Shivam Pal 5 years, 11 months ago
Posted by Sankalp Gupta 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Law of conservation of linear momentum is a extremely important consequence of Newton's third law of motion in combination with the second law of motion.
According to law of conservation of momentum
When two or more bodies acts upon each other their total momentum remains constant provided no external forces are acting
So, Momentum is never created or destroyed.
Posted by Dakshita Dharwal 5 years, 11 months ago
- 2 answers
Yogita Ingle 5 years, 11 months ago
- Mechanical method- Involves pulling out weeds with hands or by ploughing. Weeds can also be removed using a big comb-like harrow or using a trowel.
- Cultural method: Cultural methods of weed control include proper bed preparation, timely sowing of crops, intercropping and crop rotation.
- Chemical method: involve the use of chemical weed killers called herbicides such as 2,4-D, atrazine, fluchloralin, and isoproturon to kill the weeds.
- Biological method: involves the deliberate use of insects or some other organisms which consume and specifically destroy weed plants.
Posted by Dakshita Dharwal 5 years, 11 months ago
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Dakshita Dharwal 5 years, 11 months ago
Posted by Dakshita Dharwal 5 years, 11 months ago
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Posted by Utsav Kumar 5 years, 11 months ago
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Utsav Kumar 5 years, 11 months ago
Posted by Dakshita Dharwal 5 years, 11 months ago
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Posted by Dakshita Dharwal 5 years, 11 months ago
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Posted by Shubh Patel 5 years, 11 months ago
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Shreyansh Singh 5 years, 11 months ago
Yogita Ingle 5 years, 11 months ago
The tiny atomic nucleus is the centre of an atom constituting positively charged particles “protons” and uncharged particles “neutrons.” On the other hand, the extra nucleus part is a much larger region which is composed of a cloud of negatively charged particles called an electron. Electrons revolve around the orbit or centre of the nucleus. The attraction between the protons and electrons holds the structure of an atom together.
Posted by Kavita Kumari 5 years, 11 months ago
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Samruddhi Br 5 years, 11 months ago
Yogita Ingle 5 years, 11 months ago
If the location of an object changes with time the object is said to be in motion.
Posted by Deep Tara 5 years, 11 months ago
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Posted by Prasanna Badiger Prasu 5 years, 11 months ago
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Darsh M 5 years, 11 months ago
Posted by Sutrave Gayatri 5 years, 11 months ago
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Utkarsh Aryan 5 years, 11 months ago
Shivam Pal 5 years, 11 months ago
Posted by Pubg Lover 5 years, 11 months ago
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Darsh M 5 years, 11 months ago
Posted by Bhupesh Sharma 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
SOLUTION:
1.Homogenous mixture.
2.Particles are smaller than 1 nm ,they are not visible to naked eye.
3.They do not scatter a beam of light.
4. Solute particles cannot be separated by the process of filtration and sedimentation.
SOL:
1.Heterogenous mixtures.
2.The size of the particles is to small to seen by naked eye.
3.They scatter a beam of light passing through them.
4.Solute particles cannot be separated by the process of filtration and sedimentation.
SUSPENTION:
1.Heterogeneous mixtures.
2.Particles are visible to naked eye.
3.They scatter a beam of light passing through them.
4.Solute particles can be separated by the process of filtration and sedimentation.
Posted by Shreyansh Singh 5 years, 11 months ago
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Tariq Khan 5 years, 11 months ago
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Aarav Nirwal 5 years, 11 months ago
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