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Cell division

Posted by Jayveer Dadheech 7 months, 4 weeks ago

1 answers

Cell division is a type of division in which "cells are seprate their nucleus and cell body in two or more than two parts".

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Describe morphological characteristics of frog

Posted by Jasmeen Khubber 8 months ago

CBSE > Class 11 > Biology

2 answers

Rafi Mohammed 7 months, 3 weeks ago

It is amphibian animal, body is dorsal Divide body into head and trunk it can change colour eye is large and bulging, tympannum is present.

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Naincy Thakur 7 months, 4 weeks ago

:- It is warm blooded animal :- Skin of frog is smooth and slippery due to presence of mucus . ;- Body is divided into head and trunk :- tympannum membrane is present instead of external ears for receiving sound signal :- the frog never drinks water ,it' absorbs through it skin

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What are heterospory what is its significance

Posted by Ujala Yadav 8 months ago

CBSE > Class 11 > Biology

2 answers

Anshu Vasu 7 months ago

Heterospore is the phenomenon of two kinds of species. The small spores arw known as microspores and the large spores are known as megaspores Significance= The biological significance of Hetrosphyte during spores formation

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Jasmeen Khubber 8 months ago

The presence of two kinds of spores in any plant body is known as heterospory. i.e, Male microspores and female megaspores Significance = It is the first step towards seed habit.

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What is flagellar movement

Posted by R Singh 8 months ago

CBSE > Class 11 > Biology

1 answers

Subhash Chandra 8 months ago

Bodd

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Difference between prokaryotic and eukaryotic cell

Posted by Sujal Chougule 8 months, 2 weeks ago

CBSE > Class 11 > Biology

2 answers

Hira Ansari 8 months, 2 weeks ago

Prokaryotic cells have not well developed organelle other than ribosome while eukaryotic have well developed organelle including ribosome,nucleus,nuclear membrane etc

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Adithya Dev 8 months, 2 weeks ago

A prokaryotic cells represent the earlier forms of life that existed on earth and they have no distinct cell nucleus or membranes bound cell organelles. They have a severely indistinct nucleoid region of condensed chromatin network and smaller 70S ribosomes (with 30S and 50S subunits) with special bodies replacing cell organelles such as the inclusion bodies, chromatophores and mesosomes. On the other hand, eukaryotic cells have a much more complex organization with proper membrane-bound cell organelles and larger 80S ribosomes (with 40S and 60S subunits).

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Explain how the difference in the pressure of the blood in pulmonary artery and the aorta is related to (I) structure of the ventricles. (II)Where the blood is going.

Posted by Siddhi Gupta 8 months, 3 weeks ago

CBSE > Class 11 > Biology

2 answers

Adithya Dev 8 months, 2 weeks ago

Hope you understood the whole thing.

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Adithya Dev 8 months, 2 weeks ago

Ventricles usually have very thick walls so that they can withstand the pressure with which they have to pump blood so that blood circulates through each and every tissue of the body. But, left ventricle is the one that actually sends the blood to most body tissues, so the LV is the thickest due to which aorta has to withstand higher pressure. But, RV does not need that much pressure or thickness as it has to pump blood only to the lungs. So, the pulmonary artery also experiences relatively lower pressure than aorta. So, considering (1), thicker the ventricular wall, more would be the pressure it's associated artery has to withstand. Considering (2), more the number of tissues to which blood must reach and more the distance the blood must travel to reach tissues, greater will be the pressure on the great arteries. (GREAT ARTERIES IS THE COLLECTIVE TERM FOR AORTA AND PULMONARY ARTERY)

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Describe the event of cardiac cycle

Posted by An Kharz 9 months ago

CBSE > Class 11 > Biology

1 answers

Nandhanaa Tamilarasan 8 months, 3 weeks ago

The cardiac cycle is a series of pressure changes that take place within the heart. These pressure changes result in the movement of blood through different chambers of the heart and the body as a whole.

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Cell is unicellular organism

Posted by Sandhya Behera 9 months ago

CBSE > Class 11 > Biology

3 answers

Neha Future Dr. 9 months ago

Cell is unicellular but not an organism..

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Devadathan Vishnu 9 months ago

Cell is a unicellular entity. It makes an organism. It's not an organism.

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Smriti Srivastava 9 months ago

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Why hemichordata are placed in invertebrates?

Posted by Arpita Nayak 9 months ago

CBSE > Class 11 > Biology

1 answers

Devadathan Vishnu 9 months ago

Hemicordata don't have a complete and true notochord. Notochord is an important criterion for class chordata/vertebrates

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name the Phylum having largest number of animals . name are major category of animals it. has write any two special morphology features of animals of this phylum

Posted by Prachi Gotiya 9 months, 1 week ago

CBSE > Class 11 > Biology

5 answers

Shaikh Fatema 7 months, 2 weeks ago

Phyllum arthropoda

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Adithya Dev 8 months, 2 weeks ago

And, categories inside include Crustaceans (Prawns, shrimps), Insects (Cockroach, ants) , Arachnids (Spider, Scorpion), and Limulus (King Crab, the sole member in the category) .

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Neha Future Dr. 9 months ago

Arthropoda

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Devadathan Vishnu 9 months ago

Phylum Artropoda Features : Jointed appendages Presence of malphigian tubules

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Shreya Maurya 9 months, 1 week ago

Phylum Arthropoda

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Why is two kingdom classification was found to be insufficient

Posted by Suresh Chandra Yadav 9 months, 2 weeks ago

CBSE > Class 11 > Biology

2 answers

Neha Future Dr. 9 months ago

Because it can't distinguish between 1. Eukaryotes and prokaryotes 2. Unicellular and multicellular 3. Autotrophs and heterotrophs 4. Many organisms are not included in two kingdom classification

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Ashiya Banu 9 months, 2 weeks ago

Becausw it cannot differentiate between 1)unicellular and multicelluar ,2)prokaryotes and eukaryotes (3) autotrophs and hetrotrophs

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Is two kingdom.classification adaquate give example

Posted by Anu Mahto 9 months, 2 weeks ago

CBSE > Class 11 > Biology

2 answers

Raj Kumar Raj Purohit 9 months, 2 weeks ago

Heilo

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Adithya Dev 9 months, 2 weeks ago

No. It does not differentiate between prokaryotic and eukaryotic, photosynthetic and non-photosynthetic and unicellular and multicellular organisms. For example, cyanobacteria and algae are placed under Kingdom plantae and Amoeba and fishes are placed under Kingdom Animalia.

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Monsoon floods and hollowness of the authorities

Posted by Simran Saini 9 months, 3 weeks ago

CBSE > Class 11 > Biology

2 answers

Raj Kumar Raj Purohit 9 months, 3 weeks ago

Hii

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Sushil Monu 9 months, 3 weeks ago

Hii

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What are characters of life

Posted by Kartik Waddar 9 months, 3 weeks ago

CBSE > Class 11 > Biology

1 answers

Suraj Verma 9 months, 3 weeks ago

Must show internal growth Must have cellular metabolism Able to show consciouness Able to regulate their body temperature Able to show respond towards stimulus These are some important characters of life

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Morphology of flowering plants questions

Posted by Lucky Sugali 9 months, 3 weeks ago

CBSE > Class 11 > Biology

2 answers

Shaikh Fatema 7 months, 2 weeks ago

You can get it easily from telegram channel biology at ease or rakshita singh

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Nandhanaa Tamilarasan 8 months, 3 weeks ago

How do the roots of the plants growing in swamps and marshes obtain their oxygen? A.1. The roots of the plants growing in swamps and marshes grow vertically upwards and respire. They become negatively geotropic. Q.2. Name some modifications of plant parts for the purpose of photosynthesis. A.2. The stem gets modified into a leaf-like structure to carry out photosynthesis. In plants like Trapa and Tinospora, the roots grow out of the soil and develop chlorophyll to perform photosynthesis. Q.3. What are the edible parts of ginger and onion? A.3. The modified stem is the edible part of ginger. All the food material is stored here. The fleshy leaves of onion are the edible parts. Q.4. Differentiate between pinnately compound leaf and palmately compound leaf? A.4. Pinnately Compound LeafPalmately Compound LeafThe midrib of the leaves is present on a common axis called the rachis.Leaflets are attached at the tip of the petiole. Q.5. Explain different types of phyllotaxy with suitable examples. A.5. The pattern in which the leaves are arranged on the stem is known as phyllotaxy. These are of three types: Alternate Phyllotaxy- The leaf arises from each node in an alternate manner. For eg., China rose, sunflower. Opposite Phyllotaxy- The leaves arising at each node lie opposite to each other. For eg., Calotropis Whorled Phyllotaxy– More than two leaves arise at each node and form a whorl. For eg., Alstonia Q.6. Describe the modifications of the stem. Give examples for the same. A.6. Modifications of the stem are as follows: Stem Tendrils- These may be branched with scaly leaves. Eg., Passiflora, Antogonon Stem Thorns- These are sharp needle-like structures that are formed to reduce transpiration and also act as a defence. For eg., Citrus, Pomegranate Phylloclades- These are green, flattened, succulent, leaf-shaped structures that perform photosynthesis. They possess indefinite growth. For eg., Opuntia, Euphorbia soyleana. Cladodes- They are green, photosynthetic of limited growth. The leaves are either modified into spines or reduced to scales. For eg., Ruscus, Asparagus Q.7. Which two roots develop from different parts of the angiosperm plant other than the radicle? A.7. Prop roots of the banyan tree- Develop from lower nodes of the stem of the tree Stilt roots in sugarcane- Arise from lower nodes of the stem and penetrate the soil. Both the roots are meant to provide support.

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Plants kingdom

Posted by Urvashi Pandey 10 months ago

CBSE > Class 11 > Biology

0 answers

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What is fungi?

Posted by Harpreet Kaur 10 months ago

CBSE > Class 11 > Biology

1 answers

Ishu Rana 10 months ago

fungus (pl: fungi[2] or funguses[3]) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom,[4] separately from the other eukaryotic kingdoms, which, by one traditional classification, includes Plantae, Animalia, Protozoa, and Chromista.

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Which class of Kingdom Fungi is commonly known as "Imperfect fungi' & wh

Posted by Ritam Mondal 10 months, 1 week ago

CBSE > Class 11 > Biology

5 answers

Hetvi Gurjar 8 months, 2 weeks ago

Deuteromycte

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Neha Future Dr. 9 months ago

Deuteromycetes , because sexual reproduction is absent

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Priyesh Gupta 9 months, 2 weeks ago

Deutromycetes

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Shanu Yadav 10 months ago

Because sexual reproduction is absent

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Shanu Yadav 10 months ago

Deuteromycetes

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Define glomerular filtration rate

Posted by Raghvan Maddi 10 months, 1 week ago

CBSE > Class 11 > Biology

2 answers

Sourabh Prajapati 7 months, 3 weeks ago

The amount of filtrate formed by kidneys per minute

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Lucky Sugali 9 months, 3 weeks ago

It used to how well kidneys are working

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What happens when ***** get stuck in ****** of female. Will it affect reproduction system?

Posted by Dammu Raj Sekhar 3 months, 2 weeks ago

CBSE > Class 11 > Biology

1 answers

Arunodh A 7 months ago

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Pappus is modification of

Posted by Siddharth Thorat 10 months, 1 week ago

CBSE > Class 11 > Biology

1 answers

Abdul Rouf 10 months, 1 week ago

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Whats is double fertilizer

Posted by Anshika Saini 10 months, 2 weeks ago

CBSE > Class 11 > Biology

2 answers

Sanskar Kumar 10 months, 1 week ago

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Gulshan Yadav 10 months, 2 weeks ago

Double fertilization is a chief trait of flowering plants. In the phenomena, one female gamete unites with two male gametes. One of the male gametes fertilizes the egg resulting in the formation of a zygote and the other unites with 2 polar nuclei for the formation of an endosperm

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Notes of chapter 2,3,4

Posted by Gauri Sahu 10 months, 1 week ago

CBSE > Class 11 > Biology

0 answers

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What is coelaterals

Posted by Ayush Biswal 10 months, 2 weeks ago

CBSE > Class 11 > Biology

0 answers

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Explain structure of protein

Posted by Gunjan Jhangta 10 months, 3 weeks ago

CBSE > Class 11 > Biology

1 answers

Gulshan Yadav 10 months, 2 weeks ago

the primary structure of a protein is defined as the sequence of amino acids linked together to form a polypeptide chain. Each amino acid is linked to the next amino acid through peptide bonds created during the protein biosynthesis process

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Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

Posted by Pankaj Indoriya 10 months, 2 weeks ago

CBSE > Class 11 > Biology

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What is ******

Posted by Shrey Jaiswal 11 months ago

CBSE > Class 11 > Biology

0 answers

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Explain kingdom Monera

Posted by Ritika Kaushik 11 months, 1 week ago

CBSE > Class 11 > Biology

5 answers

Lucky Sugali 9 months, 3 weeks ago

Nucleus present but nuclear envelope is absent means nuclear memberane is absent bro

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Siddharth Thorat 10 months, 1 week ago

In 5 kingdom in monera they are defined as prokaryotic organisms who are unicellular and are lack of nucleus

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Janbi Balmiki 10 months, 2 weeks ago

unicellular ,prokaryotes , lack true nucleus, lived in harsh and extreme conditions, sole members of bacteria , most abundant microorganisms, also parasites

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Swayam Samantaray 10 months, 3 weeks ago

1- R.H. Whittaker (1969) proposed a five kingdom classification. 2- The kingdom defined by him were named I- Monera II- Protosta III- Fungi IV- Plantae V- Animalia

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Ayoshitha M 11 months, 1 week ago

Monerans are unicellular, prokaryotic organisms found in a moist environment and lack a true nucleus.Prokaryotes are members of the Kingdom Monera family. There is no real nucleus in any of the species that make up this kingdom. These are the planet’s oldest known microbes. Their nucleus does not contain their DNA. They are single-celled creatures that are typically found in damp environments. They can be discovered as parasites in other creatures, hot springs, deep oceans, and snow. Organelles that are bound to membranes are absent in monerans. Bacterial Cell Characteristics The monerans are single-celled creatures. They have 70S ribosomes in them. A nuclear membrane does not enclose the DNA, which is exposed. It is devoid of organelles like lysosomes, plastids, centrioles, bodies of Golgi, mitochondria, and so on. By binary fission or budding, they reproduce asexually. Peptidoglycan makes up the stiff cell wall. The locomotory organ is the flagellum. Environmental decomposers are those. They exhibit many feeding strategies, including autotrophic, parasitic, heterotrophic, and saprophytic.Monerans are extremely helpful creatures. They contribute to the nitrogen cycle and improve soil quality. Additionally, they are useful in the synthesis of various foods and antibiotics. Methanogens are crucial in the sewage treatment process. Archaebacteria are a major source of food for numerous creatures.

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Project file on plant kingdom

Posted by Ankita Chahal Lieutenant 11 months, 1 week ago

CBSE > Class 11 > Biology