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Mango ------- Species = ??????. Genus = ?????????. Family = Anacardiaceae. Order = Sapindales. Class = Dicotyledonae. Phylum = Angiospermae. Kingdom = Plantae.

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Sos deases is a acute or chronic why they occur

Posted by Divya. Kumari 3 years, 10 months ago

CBSE > Class 11 > Biology

1 answers

Ankit ............ 3 years, 10 months ago

Disease can present in acute sub acute or chronic in usually abdominal pain and swelling evidence of portal hypertension and variable degrees sernum enzyme elevations and jaundice

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Whats is matabolic

Posted by Rihan Khan 3 years, 10 months ago

CBSE > Class 11 > Biology

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Saloni Mishra 3 years, 10 months ago

Some chemical reactions occur in our body is known as metabolic

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Pranav Pandey 3 years, 10 months ago

All the chemical reaction or activities happens in our body together they are called matabolic reactions.

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Mannu Dahiya 3 years, 10 months ago

Sum of all the reactions occuring in our body

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What is gymnosperms

Posted by Anmol Juyal 3 years, 10 months ago

CBSE > Class 11 > Biology

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Mannu Dahiya 3 years, 10 months ago

The plants bearing naked seeds

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Mohd Imran 3 years, 10 months ago

Seed producing plants

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What is sos in blood

Posted by Divya. Kumari 3 years, 10 months ago

CBSE > Class 11 > Biology

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Mohd Imran 3 years, 10 months ago

It is a disease

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A reduction in their number can lead to clotting disorders which will lead to excessive loss of blood from the body. What is the meaning of this line It is given in NCERT page no280 Explain this line..

Posted by Divya. Kumari 3 years, 10 months ago

CBSE > Class 11 > Biology

1 answers

Pranav Pandey 3 years, 10 months ago

Blood platelets

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Why urea formed in body and they have to be secretd?

Posted by Divya. Kumari 3 years, 10 months ago

CBSE > Class 11 > Biology

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Divya. Kumari 3 years, 10 months ago

Why they formed in liver ?

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Divya. Kumari 3 years, 10 months ago

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Hruday Reddy 3 years, 10 months ago

Urea is the toxic substance which r waste substance in the body . If the body does not let Urea out then there will be infection in the body and in the surroundings of the excreatory track.

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What is the role of kuffer cells in liver?

Posted by Divya. Kumari 3 years, 10 months ago

CBSE > Class 11 > Biology

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A J 3 years, 10 months ago

They protect the liver from bacterial infections n play a major role in the functions of liver

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Elaborate the evolutionary change in the pattern of heart among the vertebrates?

Posted by Divya. Kumari 3 years, 10 months ago

CBSE > Class 11 > Biology

1 answers

Preeti Dabral 3 years, 10 months ago

The heart of fish has two chambers. This means there is no separate circulation for oxygenated and deoxygenated blood. There is separation of two chambers in the atrium of amphibians. This has further evolved for partial separation of ventricle as well in reptiles. Finally in birds there is complete separation of oxygenated and deoxygenated blood circulation due to advent of four chambers in the heart. Mammal heart is the most developed having the most efficient double circulatory system with four chambers and separation of two blood streams.

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Why do we call our heart is myogenic?

Posted by Divya. Kumari 3 years, 10 months ago

CBSE > Class 11 > Biology

1 answers

Mohd Imran 3 years, 10 months ago

the heartbeat is triggered by the sinoatrial node, and the impulse of contraction originates in the heart, the human heart is thus known as myogenic. ... As the heartbeat is triggered by the sinoatrial node, and the impulse of contraction originates in the heart, the human heart is thus known as myogenic

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Why do we considered blood as a connective tissue.elaborate

Posted by Divya. Kumari 3 years, 10 months ago

CBSE > Class 11 > Biology

1 answers

Preeti Dabral 3 years, 10 months ago

Blood is considered on a connective tissue because it contains plasma and the form ed elem ents such as RBCs, WBCs (leucocytes), blood platelets etc.

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Why heart is called mesodermal

Posted by Divya. Kumari 3 years, 10 months ago

CBSE > Class 11 > Biology

1 answers

Mohd Imran 3 years, 10 months ago

Heart originates from the mesoderm layer of the connective tissue system which is the middle germ layer of an embryo. Therefore, heart is mesodermal in origin

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In fishes the heart will have venus blood,atrial blood or both . explained this.

Posted by Divya. Kumari 3 years, 10 months ago

CBSE > Class 11 > Biology

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Preeti Dabral 3 years, 10 months ago

The fish heart is called the venous heart because it only receives blood from the veins and pumps it for oxygenation straight to the gills. In the fish heart, blood travels through a single complete circuit once only. Blood flows into the atrium after passing through the fish leaving it poorly oxygenated.

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How much amount of serum is present in blood

Posted by Divya. Kumari 3 years, 10 months ago

CBSE > Class 11 > Biology

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Preeti Dabral 3 years, 10 months ago

Serum is plasma without the clotting factors. Red blood cells account for approximately 45% of the whole blood, white blood cells and platelets approximately 1%, and serum or plasma accounts for the remainder, approximately 55% of the volume

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Biofertilizers

Posted by Priyansh Star 3 years, 10 months ago

CBSE > Class 11 > Biology

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Sia ? 3 years, 10 months ago

Biofertilizers are living microbes that enhance plant nutrition by either by mobilizing or increasing nutrient availability in soils. Various microbial taxa including beneficial bacteria and fungi are currently used as biofertilizers, as they successfully colonize the rhizosphere, rhizoplane or root interior.

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What is the role of phagocytosis

Posted by Divya. Kumari 3 years, 10 months ago

CBSE > Class 11 > Biology

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Sia ? 3 years, 10 months ago

Phagocytosis is a cellular process for ingesting and eliminating particles larger than 0.5 μm in diameter, including microorganisms, foreign substances, and apoptotic cells. Phagocytosis is found in many types of cells and it is, in consequence an essential process for tissue homeostasis.

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Write main difference between serum and plasma

Posted by Divya. Kumari 3 years, 10 months ago

CBSE > Class 11 > Biology

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Sia ? 3 years, 10 months ago

Plasma	Serum
The liquid part of the blood is called plasma which is a solution in water of many compounds. It contains many organic and inorganic substances. In the plasma, digested food, CO₂ and excretory products are carried around the body.	It is the blood plasma from which the fibrinogen has been removed. It contains antibodies to overcome the toxic effect of micro-organisms.

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Function of bacteria

Posted by Md.Karim Ansari 3 years, 11 months ago

CBSE > Class 11 > Biology

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Sia ? 3 years, 11 months ago

Bacteria in the digestive system break down nutrients, such as complex sugars, into forms the body can use. Non-hazardous bacteria also help prevent diseases by occupying places that the pathogenic, or disease-causing, bacteria want to attach to. Some bacteria protect us from disease by attacking the pathogens.

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What are the steps for respiration

Posted by Priyanka M. K 3 years, 11 months ago

CBSE > Class 11 > Biology

3 answers

Sia ? 3 years, 11 months ago

The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.

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Divya. Kumari 3 years, 10 months ago

Cell is a basic unit of life ,it has structural and functional unit.

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Archana Painkra 3 years, 11 months ago

Cell kise kahte h

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Plant kingdom

Posted by Dipanshu Dave 3 years, 11 months ago

CBSE > Class 11 > Biology

2 answers

Sia ? 3 years, 11 months ago

Features of Plant Kingdom:

Plants are autotrophic, except for some carnivorous plants. They trap photo energy from sunlight and convert it to chemical energy through photosynthesis. Because of these plants are the main channel for supplying energy in the food chain on earth.
Reproduction in plants can be by any of the following modes: Vegetative or Asexual, and Sexual Reproduction.
The plant cell is unique because of the presence of cell wall and large vacuoles. Green parts of plant contain chlorophyll, which helps them in trapping the photo energy.
Sizes of plants can vary from microscopic to a very large tree. Plants are mainly divided into Algae, Bryophytes, Pteridophytes, Gymnosperms and Angiosperms.
Lower plants, like algae and bryophytes, have thalloid structure, while higher plants, like gymnosperms and angiosperms, have clearly defined roots and stems.
In higher plants root gives a means to anchor in the soil and helps the plant in taking minerals and water from the soil. Green leaves on the stem help them in photosynthesis.
Most of the plant grow as a result of photosynthesis. After photosynthesis, extra food is utilized to facilitate growth.
Usually in higher plants growth is unlimited and some taller trees can live a life of more than 1000 years.
Being the main carbon fixation agents, plants are very important for the whole ecology.
The whole food basket for humans is being filled by the plant kingdom. Even animal products, like milk and poultry, are indirect results of plants carbon fixation.
Plants supply raw materials for a majority of economic activities. Wood for furniture and building materials come from plants. The whole paper industry is dependent on plant kingdom. Think of a life if there was no paper and you may understand the larger impact on human civilization.
Angiosperms have special organs, called flower, to bear sexual parts. Flowers are helpful tool in facilitating variations and further evolution of the plant kingdom.

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Mannu Dahiya 3 years, 10 months ago

Join telegram group *biology notes for neet* U can see notes with pictures

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Leptotene

Posted by Jatin Jatin 3 years, 11 months ago

CBSE > Class 11 > Biology

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What is taxonomic key ?

Posted by Niharika Tanwar 3 years, 11 months ago

CBSE > Class 11 > Biology

3 answers

Mannu Dahiya 3 years, 10 months ago

It is like branched type If we talk about anything there is a positive point and negative point so here also the living organisms having opposable thumbs(thumb folds in the opposite direction of all fingers) are humans and not having oppsible thumbs are gorillas,etc. I hope u understand the point so like plz?

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Bhupendra Nag 3 years, 11 months ago

key is a type of taxonomical aid used for identification of plant and animal based on the similarities and dissimilarities

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Dropdi Devi 3 years, 11 months ago

A taxonomic key is a device for quickly and easily identifying to which species an unknown plant belongs.

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Define taxa and taxon

Posted by Niharika Tanwar 3 years, 11 months ago

CBSE > Class 11 > Biology

2 answers

Mohd Imran 3 years, 10 months ago

In biology, a taxon is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established

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Niharika Tanwar 3 years, 11 months ago

Please answer

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What is nucleus

Posted by Yaswanth Varma 3 years, 11 months ago

CBSE > Class 11 > Biology

3 answers

Rihan Khan 3 years, 10 months ago

Nucleus is the brain of cell . Nucleus made with nuleciotide. Nucleus double mambrain structure . Nucleus has highly extand , elaborate nucleoproteins fibers called chromatin , nucleor .matrix.and nucloli. The outer mambrain is countionus with endoplasmic reticulum and bears ribosomes.

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Sidharth Sehrawat 3 years, 11 months ago

Nucleus is discovered by Robert brown. It is double membrane structure which contain genetic material , useful for cell growth etc.

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Anjan Karthi 3 years, 11 months ago

A cellular nucleus is a dense region with definite boundaries present in the cytoplasm of a cell which is responsible for all kinds of metabolic activities occuring inside the cell. Though it was discovered as a cell organelle in 1831 by Robert Brown, it was later found that there was a factor which made it so important than other organelles - a CHROMATIN thread which consists of a 2 m long ? strand bound around mostly Histone (and a few non-histone) proteins.

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types of pterdophyte

Posted by Rock Prajwal Musali 3 years, 11 months ago

CBSE > Class 11 > Biology