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Ask QuestionPosted by 👌Aditya 👌 👌Kumar👌 5 years, 1 month ago
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Anuj Kumar 5 years, 1 month ago
Posted by 👌Aditya 👌 👌Kumar👌 5 years, 1 month ago
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👌Aditya 👌 👌Kumar👌 5 years, 1 month ago
Posted by Yuvraj Singh Tomar 5 years, 1 month ago
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Gaurav Seth 5 years, 1 month ago
Kingdom Plantae are divided into 5 major divisions: Thallophyta, Bryophyta, Pteridophyta, Gymnosperms and Angiosperms.
The kingdom Plantae is classified on the basis of:
1. Whether the plant body is differentiated or undifferentiated.
2. Whether the plant produces seeds or not.
3. Whether the seeds produced are naked or enclosed within the fruits.
4. Whether the differentiated plant body possesses specialized tissue for water and food transportation.
Posted by Sarthak Gore 5 years, 1 month ago
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Gaurav Seth 5 years, 1 month ago
- Dig a planting hole large enough to accommodate the existing root system, leaving room to grow
- Remove the rose plant from its pot
- Loosen the root ball a bit and spread out the roots
- Refill the planting hole with soil and any rose food you might use
- Tamp around the roots to remove any air pockets that may have formed in the soil
- Thoroughly water the rose bush once it's planted
- Mulch over the newly planted rose's roots to retain moisture and keep weeds down
Posted by Lakshmi Kadirvelu 5 years, 1 month ago
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Karmit Chugh 5 years, 1 month ago
👌Aditya 👌 👌Kumar👌 5 years, 1 month ago
Aarushi Erande 5 years, 1 month ago
Posted by Mukul Kumar 😎 5 years, 1 month ago
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Gaurav Seth 5 years, 1 month ago
- Rutherford
- The discovery of the proton is credited to Ernest Rutherford, who proved that the nucleus of the hydrogen atom (i.e. a proton) is present in the nuclei of all other atoms in the year 1917.
- Ernest Rutherford observed that his scintillation detectors detected hydrogen nuclei when a beam of alpha particles was shot into the air.
Posted by Prakash Nailwal 5 years, 1 month ago
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Yogita Ingle 5 years, 1 month ago
If the number of electrons in the outermost shell of the atom of an element is less than or equal to 4, then the valency of the element is equal to the number of electrons in the outermost shell. On the other hand, if the number of electrons in the outermost shell of the atom of an element is greater than 4, then the valency of that element is determined by subtracting the number of electrons in the outermost shell from 8. The distribution of electrons in chlorine, sulphur, and magnesium atoms are 2, 8, 7; 2, 8, 6 and 2, 8, 2 respectively. Therefore, the number of electrons in the outer most shell of chlorine, sulphur, and magnesium atoms are 7, 6, and 2 respectively.Thus, the valency of chlorine = 8 -7 = 1
The valency of sulphur = 8 – 6 = 2
The valency of magnesium = 2
Posted by Prakash Nailwal 5 years, 1 month ago
- 5 answers
👌Aditya 👌 👌Kumar👌 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
Atoms are defined as the basic building blocks of matter. An atom is composed of three particles, namely, neutrons, protons and electrons with hydrogen as an exception without neutrons. Every atom has a nucleus that bounds one or more electrons around it. The nucleus has typically a similar number of protons and neutrons which are together known as nucleons. The protons are positively charged, electrons are negatively charged and neutrons are neutral.
Posted by Harshit Deshwal 5 years, 1 month ago
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Yogita Ingle 5 years, 1 month ago
For a boy going to school with a uniform velocity(v):
v=constant>0
Since velocity is also equal to the slope of the displacement-time graph, displacement-time graph will be a straight line inclined to the time-axis with an acute angle.
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Posted by Cm| Black Bolt 5 years, 1 month ago
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Mukul Kumar 😎 5 years, 1 month ago
Posted by Sneha Manoj 5 years, 1 month ago
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Yogita Ingle 5 years, 1 month ago
- Tendons are fibrous tissue which connects bones to muscles.
- They are with great strength but limited flexibility.
Posted by Light Yagimi 5 years, 1 month ago
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Yogita Ingle 5 years, 1 month ago
Separating funnel is used to separate the mixture of two immiscible liquids. Kerosene oil and water do not mix with each other and form two separate layers. The mixture separates into two layers according to their densities. The heavier liquid (water) forms the lower layer whereas the lighter liquid forms the upper layer (kerosene). Thus, the water is first collected in the beaker. and the kerosene is collected in another beaker.
Posted by Piyu Patil 5 years, 1 month ago
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Karmit Chugh 5 years, 1 month ago
Gaurav Seth 5 years, 1 month ago
Differences between xylem and phloem
| Xylem | Phloem |
| 1. It conducts water and minerals from roots to leaves. | 1. It conducts food from leaves to all parts of the plant. |
| 2. It is composed of mainly dead elements. | 2. It is composed of mainly living elements. |
| 3. Transport is unidirectional. | 3. Transport is bidirectional. |
| 4. It has four types of cells: Tracheids, Vessels, Xylem parenchyma and Xylem fibres. | 4. It has four types of cells: Phloem fibres, Sieve tubes, Companion cells and Phloem parenchyma. |
Posted by Suhani Singh 5 years, 1 month ago
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Posted by Adnan Shaikh 5 years, 1 month ago
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Yogita Ingle 5 years, 1 month ago
| Cytoplasm | Protoplasm |
| Consists of cytosol + cell organelles | Consists of cytosol + cell organelles + nucleus |
| The term is still relevant in modern biology | The term is considered obsolete by today’s standards |
Posted by Jyoti Jha 5 years, 1 month ago
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Payal Kasana 5 years, 1 month ago
Posted by Damini Damini 5 years, 1 month ago
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Arushi Patel 5 years, 1 month ago
Posted by Trushti Parmar 5 years, 1 month ago
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Yogita Ingle 5 years, 1 month ago
In the hierarchy of classification, the species is the grouping which will have the smallest number of organisms with a maximum of characteristics in common. The grouping which will have the-largest number of organisms with a maximum characteristics common is kingdom.
Posted by Anikat Singh 5 years, 1 month ago
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Trushti Parmar 5 years, 1 month ago
Drishti Basotra 5 years, 1 month ago
Posted by Soumya Shrivas 5 years, 1 month ago
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Pramodsingh Rathore 5 years, 1 month ago
Buddhabhushan Waghmare 5 years, 1 month ago
Posted by Soumya Shrivas 5 years, 1 month ago
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Gaurav Seth 5 years, 1 month ago
- Plastid is a membrane-bound organelle found in the cell of plants, algae and few eukaryotic cells.
- It the site of production and storage of important chemical compounds which are used by the cells of autotrophic organisms.
- They contain pigments which are used in photosynthesis and the types of pigments determine the cell's colour.
- The types of plastids are-
1) Chloroplasts:- are the green plastids which contain chlorophyll pigments for photosynthesis.
2) Chromoplasts:- are the coloured plastids for pigment synthesis and storage.
- The pigment present in them is carotene which gives a different colour to fruits and flowers.
3) Gerontoplasts:- are the chloroplasts that are going through the ageing process.
- These are present in the leaves in which no more photosynthesis occurs (such as in the fall months).
4) Leucoplasts: are the colourless plastids for monoterpene synthesis found in non- photosynthetic parts of the plants.
- They are of three types:-
a) Amyloplasts- stores starch.
b) Proteinoplasts- stores proteins.
c) Elaioplasts- stores fats and oils.
Posted by Jaspreet Kaur 5 years, 1 month ago
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Posted by Arohi Chakote 5 years, 1 month ago
- 2 answers
Pramodsingh Rathore 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
The phase that is scattered or present in the form of colloidal particles is called the dispersed phase.
The medium in which the colloidal particles are dispersed is called the dispersion medium.
Example: In a starch solution, starch represents the dispersed phase, while water represents the dispersion medium.
Posted by Varun Tyagi 5 years, 1 month ago
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Payal Kasana 5 years, 1 month ago
Arohi Chakote 5 years, 1 month ago
Nishant Paliwal 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
| Unicellular organisms are composed of a single cell | Multicellular organisms are composed of more than one cell |
| Irregular in shape | Has a definite shape |
| Simple body organization | Complex body organization |
| A single cell carries out all necessary life processes | Multiple cells perform different functions |
| The total cell body is exposed to the environment | Only the outer cells are exposed to the environment |
| Division of labour is at the organelle level | Division of labour is at cellular, tissue, organs and organ system level |
| Includes both eukaryotes and prokaryotes | Includes only eukaryotes |
| A lifespan of a unicellular organism is usually short | Multicellular organisms have a comparatively longer lifespan |
| Injury to the cell leads to the death of the organism | Injury to a cell does not cause the death of the multicellular organism |
| Asexual reproduction is predominant, however, sexual reproduction is also seen (conjugation) | Reproduction happens sexually as well as asexually |
Posted by Sunita Sapkota 5 years, 1 month ago
- 1 answers
Meghna Thapar 5 years ago
When ionic compounds dissolve in water they go through a process called dissociation, splitting into the ions that make them up. However, when you place covalent compounds in water, they typically do not dissolve but form a layer on top of the water. Electrovalent compounds are formed by complete rtransfer of electrons while covalent compounds are formed by sharing of electrons between 2 atoms. Electrovalent compounds are more soluble in polar solvents like water while covalent compounds are more soluble in non polar solvents like methane.
Posted by Siya Ram 5 years, 1 month ago
- 5 answers
Laxmi Narayan Sahoo 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
The brain, spinal cord and nerves are all composed of the nervous tissue.
Posted by Sunita Sapkota 5 years, 1 month ago
- 1 answers
Yogita Ingle 5 years, 1 month ago
Because elements of group 1 does not have stable electronic configuration and elements of group 18 have stable electronic configuration
Posted by Ashutosh Jadhav 5 years, 1 month ago
- 3 answers
Nishant Paliwal 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
Colloids can be classified according to different properties of the dispersed phase and medium.
Firstly, based on the types of particles of the dispersed phase, colloids can be classified as:
- Multimolecular colloids
- Macromolecular colloids
- Associated colloids
Posted by Janvi Tiwari 5 years, 1 month ago
- 1 answers
Yogita Ingle 5 years, 1 month ago
Dry ice is solid carbon dioxide which is generally used in packing frozen items is an example of molecular solid.
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Aishwarya Chandra Shekar 5 years, 1 month ago
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