Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
- 3 answers
Yogita Ingle 5 years, 3 months ago
The movement in the sensitive plant is involuntary action, but the change in our legs is a voluntary action.
Plants have some specialized protein for the movement in sensitive plants.
But animals have some concentrated protein.
This protein helps the muscles to move.
There are two types of tissues helps to transfer the information in the animal cell, but there is no cell is available in a plant cell.
Posted by Shivaji Gaykwad 5 years, 3 months ago
- 5 answers
Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
Posted by Amisha Jindal 5 years, 3 months ago
- 1 answers
Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
Posted by Riya Sharma 5 years, 3 months ago
- 1 answers
Posted by Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
- 3 answers
Shivaji Gaykwad 5 years, 3 months ago
Posted by Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
- 3 answers
Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
Posted by Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
- 2 answers
Shivaji Gaykwad 5 years, 3 months ago
Posted by Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
- 5 answers
☆•..¤( Prateek )¤..•☆ 5 years, 2 months ago
Satyam Lodhi Rajput 5 years, 3 months ago
Shivaji Gaykwad 5 years, 3 months ago
Posted by Shivaji Gaykwad 5 years, 3 months ago
- 2 answers
Vaishu ? 5 years, 3 months ago
Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
Posted by Shivaji Gaykwad 5 years, 3 months ago
- 1 answers
Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
Posted by Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
- 2 answers
Shivaji Gaykwad 5 years, 3 months ago
Posted by Piyush 5974 5 years, 3 months ago
- 2 answers
Vaishu ? 5 years, 3 months ago
Gaurav Seth 5 years, 3 months ago
Like all living organism, plants also require an excretory system to discharge excess water from their body. This process of elimination of excess water from the plant body is known as transpiration. It is generally the evaporation of water from the surface of the leaves.
During the process of transpiration, water molecules in the plant tissues are removed from the aerial parts of the plants. Only a small amount of water absorbed by the plants is utilised in growth and development. The rest is eliminated in the form of transpiration.
Posted by Ritu Soni 5 years, 3 months ago
- 1 answers
Meghna Thapar 5 years, 1 month ago
(a) Reccurence of similar properties of elements after certain fixed interval of atomic number is called periodicity in properties of elements.
(b) They have similar properties because:
(i) They all have same number of valence electrons.
(ii) They all have same valency.
(c) The tendency to gain electrons increases due to increase in the nuclear charge. Due to this, atomic size decreases and a large number of valence electrons are held towards the nucleus and tendency to gain electrons increases.
Posted by Prince Rajput 5 years, 3 months ago
- 1 answers
Yogita Ingle 5 years, 3 months ago
h1 = 2 cm
u = -40 cm
f = -15 cm
1/v – 1/u = 1/f
1/v – 1/-40 = 1/-15
1/v = - (1/15) – 1/40
1/v = -11/120
V = -10.90 cm
m = v/u = h2/h1
-10.90/-40 = h2/2
h2 = 0.54 cm
Posted by Priyanga Thirumalai 5 years, 3 months ago
- 2 answers
Yogita Ingle 5 years, 3 months ago
|
Monohybrid Cross |
Dihybrid Cross |
|
1. It is a cross between two pure organisms in order to study the inheritance of a single pair of contrasting character. |
1. It is a cross between two pure organisms in order to study the inheritance of two pairs of contrasting characters. |
|
2. It produces a phenotypic monohybrid ratio of 3:1 in F2 generation. |
2. It produces a phenotypic dihybrid ratio of 9:3:3:1 in F2 generation. |
|
3. It produces a genotypic ratio of 1:2:1 in F2 generation. |
3. It produces a genotypic ratio of 1:2:1:2:4:2:1:2:1 in F2 generation. |
|
4. Example: Cross between tall and dwarf pea plants. |
4. Example: Cross of pea plants having round and yellow seeds and plants with wrinkled and green seeds. |
Posted by Shivaji Gaykwad 5 years, 3 months ago
- 5 answers
Posted by Shivaji Gaykwad 5 years, 3 months ago
- 1 answers
Gaurav Seth 5 years, 3 months ago
Heredity: The passing of traits from the parents to offspring is called heredity. This is heredity which is responsible for many commonly observable facts; like siblings looking similar in overall appearance.
Evolution: The change in inherited traits in biological population over subsequent generations is called evolution. Scientists have proven that life evolved in the form of simple unicellular organisms on this earth; and all the organisms which are present today have evolved from a common ancestor. The idea of evolution is based on the premise of a common ancestry.
Posted by Shivaji Gaykwad 5 years, 3 months ago
- 1 answers
Meghna Thapar 5 years, 3 months ago
Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring. The classic example used to explain the concept of use and disuse is the elongated neck of the giraffe. According to Lamarck's theory, a given giraffe could, over a lifetime of straining to reach high branches, develop an elongated neck.
Posted by Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
- 3 answers
Ashutosh Ashutosh 5 years, 3 months ago
Sawan Goja 5 years, 3 months ago
Posted by Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
- 2 answers
Posted by Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
- 2 answers
Manish Faujdar 5 years, 3 months ago
Posted by Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
- 3 answers
Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
Posted by Taniya 5 years, 3 months ago
- 0 answers
Posted by Fatema Momin 5 years, 3 months ago
- 0 answers
Posted by Ayush Rawat 5 years, 3 months ago
- 5 answers
Yogita Ingle 5 years, 3 months ago
Stamen is the male reproductive part of a flower, while pistil is the female reproductive part of a flower.
Posted by Khushi Gupta 5 years, 3 months ago
- 2 answers
Posted by Maahi ......♾ 5 years, 3 months ago
- 2 answers
Gaurav Seth 5 years, 3 months ago
The copying of DNA during reproduction is important because:
- The replication of DNA ensures that each daughter cell formed at the end of cell division, receives equal amount of DNA.
- If DNA won't be copied then the daughter cells won't receive all necessary genes.
- There may be absence of important proteins which are encoded by DNA, if DNA won't be replicated.
- Copying of DNA may result in recombination which will lead to evolution.
- Transfer of genetic material from one generation to other makes the organisms to have similar functions.
- Stability of population is maintained.
Posted by Kartik Yadav 5 years, 3 months ago
- 4 answers
Honey Jain 5 years, 3 months ago
Gaurav Seth 5 years, 3 months ago
Uses of Metals
1)Cu and Al metals are used to make wires because they are good conductors.
2)Fe,Cu and Al metals are used to make house hold utensils and factory equipments.
3)Zn is used for galvanising iron to protect it from rusting.
4)The Al foils are used in packaging of medicines,cigarettes and food material.
5)Gold and Silver are used to make jewellery.
6)Mercury is used in thermometers.
7)Na,Ti,Zr are used in atomic energy.
Posted by Hrutvija Lohakare 5 years, 3 months ago
- 1 answers
Yogita Ingle 5 years, 3 months ago
1. The living beings looks different from each other and can be identified easily.
2. It increases chances of survival in the living organisms as some of the variations are acquired genetically due to change in segregation of chromosome during reproduction or due to adaptations these changes will increase the chances of survival of the organism is unfavorable conditions.
3. It increases the resistance to diseases.
4. It provides the best traits to the organism so that it can get mates and reproduce more number of offspring.
5. It brings changes in the gene pool which is beneficial for the members of the species for survival.
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 3 months ago
0Thank You