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How does the study of different parts of a flower help in identifying wind as its pollinating agent ?

Posted by Rachita T 4 years, 10 months ago

CBSE > Class 12 > Biology

1 answers

Sia ? 4 years, 10 months ago

Wind pollination requires that the pollen grains are light and sticky.
The flowers often possess well-exposed stamen and large feathery stigma.
Wind-pollinated flowers have a single ovule in each ovary.
These flowers have small calyx and corolla.

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Explain the function each of 9a) Coleorhiza (b) Germ pores

Posted by Rachita T 4 years, 11 months ago

CBSE > Class 12 > Biology

1 answers

Gaurav Bagga 4 years, 11 months ago

Coleorhiza is a region below the level of cotyledons which gives rise to root tip. Intine extends as pollen tube from germ pores

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State one advantage and one disadvantage of cleistogamy.

Posted by Rachita T 4 years, 11 months ago

CBSE > Class 12 > Biology

1 answers

Gaurav Bagga 4 years, 11 months ago

Advantage Assures set of seed formation. Disadvantage Continuous self pollination leads to inbreeding depression.

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Where is sporollenin present inplants ?state its significance with reference to its a. chemical nature.

Posted by Rachita T 4 years, 11 months ago

CBSE > Class 12 > Biology

2 answers

Bishal Jyoti Baishya 4 years, 11 months ago

In the extine layer of Pollengrain. 1. It can withstand with high temperatures 2. No enzymes can degrade them 3. Most organic resistant with environmental factors.

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Gaurav Bagga 4 years, 11 months ago

Baar baar ek hi sawal ka jawab nhi dunga

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Write a short note on Indian dociety?

Posted by Minlen Singsit 4 years, 10 months ago

CBSE > Class 12 > Sociology

1 answers

Sia ? 4 years, 10 months ago

Indian society is a pluralistic society with a complex social order characterised by a multitude of ethnic, linguistic, religious and caste divisions. Hindus constitute the majority community and comprise about 82% of the population. They stand evenly distributed across regions.

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What were the changes that could be seen in Hamel after he came to know that french language will no longer be taught .??

Posted by Sneha Sao 4 years, 11 months ago

CBSE > Class 12 > English Core

1 answers

Tec Om 4 years, 11 months ago

In his last lesson, his changed attitude could be easily seen. He became very polite and generous. On usual days Mr. Hamel used to scold the students who were late but he had not scold Franz and also he used to rappel his ruler on the desk but these things were changed. His style of teaching was also changed. He became very emotional at the end of the class. He could not say even a single word, so he used his hand's gesture to indicate that the class was over.------------------if there is any mistake then please let me know----------.

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Calculate the mass of Na2CO3 required to prepare 500ml solution of 0.1M Na2CO3

Posted by Abdul Razique 4 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Divyani Pandey 4 years, 11 months ago

Molarity=(mass of Na2CO3×1000)÷molecular (mass of Na2CO3×Volume in ml) u can easily calculate mass from this formula

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परिजनों कार्य की रूपरेखा स्पस्ट् करिये

Posted by Anshika Thakur 4 years, 11 months ago

CBSE > Class 12 > Home Science

0 answers

ANSWER

Formula of density

Posted by Uzma Patel 4 years, 11 months ago

CBSE > Class 12 > Chemistry

3 answers

Anurag Saral 4 years, 11 months ago

d=zM/a^3Na Na=6.022*10^23=Avogadro No.

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Jatin Kumar 4 years, 11 months ago

M/V

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Keshav Garg 4 years, 11 months ago

Mass/vol.

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The pain of separation is expressed both literally and metaphorically in this poem .Eludicate

Posted by Bhumika Bashani 4 years, 8 months ago

CBSE > Class 12 > English Elective NCERT

0 answers

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Let A be matrix of order 3 X 4. If R1 denotes the first row of A and C2 denotes its second column, then determine the orders of matrices R1 and R2

Posted by Aditi Singh 4 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Tec Om 4 years, 11 months ago

R1 has order 1x4 and R2 also has the same order ,if R2 denotes the second row of A

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Theme and subtheme of chapter the last lesson

Posted by Alok Prajapati 4 years, 9 months ago

CBSE > Class 12 > English Core

1 answers

Preeti Dabral 4 years, 9 months ago

The last lesson by Alphonse Daudet is mainly about the longing to learn the mother tongue and love for it. It has a sense of patriotism. The Prussians rejected the freedom of the people of Lorraine and Alsace to learn their own mother tongue.

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Jai Hind Dosto ??

Posted by ?Sᴀʀᴋᴀʀ? ▄︻┻┳═一 ? Ꭰꭿꭰꭰꮍ ? 4 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Tec Om 4 years, 11 months ago

Jai hind

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Royal Thakur ? 4 years, 11 months ago

5Thank You

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Posted by Manisha Kuntal 4 years, 10 months ago

CBSE > Class 12 > Other Subjects

1 answers

Sia ? 4 years, 10 months ago

Please ask question with complete information.

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Nkaratamak bahyatao ka ek udaran dijiye

Posted by Varsha Meena 4 years, 11 months ago

CBSE > Class 12 > अर्थशास्त्र

0 answers

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Concentrated nitric acid used in laboratory work is 68% nitric acid by mass in aqueous solution. What should be the molarity of such a sample of the acid if the density of the solution is 1.504 g mL¹

Posted by Suman Deep 4 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Vaibhav Goswami 4 years, 11 months ago

16.23M

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Plz journalize this : Girija agreed to pay off her brother's loan.

Posted by Jaspal Kaur 4 years, 11 months ago

CBSE > Class 12 > Accountancy

1 answers

Satyam Suman 4 years, 11 months ago

Realisation a/c dr To girija's capital a/c

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Girija and ganesh were partners in a firm sharing profits and losses in the ratio of 2: 3 . On 31 st march ,2017 their balance sheet was as follows: Please any body help me out from this question .

Posted by Jaspal Kaur 4 years, 11 months ago

CBSE > Class 12 > Accountancy

0 answers

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Differentiate between geitonogamy and xenogamy in plants. Which one between the two will lead to inbreeding depression and why ?

Posted by Rachita T 4 years, 11 months ago

CBSE > Class 12 > Biology

3 answers

Asha As 4 years, 11 months ago

Geitonogamy leads to inbreeding depression because there is no variation.

1Thank You

Nidhi Bharti 4 years, 11 months ago

In geitonogamy, the trasfer of pollen grains takes place from the anther of 1 flower to the stigma of a different flower of the same plant. But in Xenogamy the trasfer of pollen grains takes place from anther to stigma of different flower of different plant... Geitonogamy leads to inbreeding depression because in this both the flowers are genetically similar and thus continuous self pollination occurs which leads to inbreeding depression

2Thank You

Partik Nehra 4 years, 11 months ago

Geitonogamy is type of pollination in which pollen from one flower transfer to stigma of another flower of same plant. While xenogamy is transfer of pollen of one plants to stigma of another plants of same species.xenogamy is genetically dissimilar. Geitonogamy cause inbreeding depression because it is genetically similar.

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Why is sporollenin considered the most resistant organic material ?

Posted by Rachita T 4 years, 11 months ago

CBSE > Class 12 > Biology

1 answers

Nidhi Bharti 4 years, 11 months ago

Because it is the toughest substance known. There is no microbe or enzyme found which can digest this substance

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Differentiate between albuminous and non-albuminous seeds, giving one example a. each.

Posted by Rachita T 4 years, 11 months ago

CBSE > Class 12 > Biology

2 answers

Keshav Kumawat 4 years, 11 months ago

Human resources management of digestive enzymes

0Thank You

Nidhi Bharti 4 years, 11 months ago

Albuminous are the seeds in which the endosperm is not completely consumed by the developing embryo. Ex. Wheat, rice, gram Non Albuminous are the seeds in which no residual endosperm is left and thus is completely consumed by the developing embryo

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TTC Ltd

Posted by Lily L 4 years, 11 months ago

CBSE > Class 12 > Accountancy

1 answers

Sia ? 4 years, 10 months ago

Tennants Textile Colours Limited

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If A = (2 -1 B = (0 4 3 2) and -1 7) find 3A² - 2B + q

Posted by Aishu ? 4 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Vivek Chaurasia 4 years, 11 months ago

Aree yrr ncert ka question ha usska solution dekh loo espa solve karna bhut muskil h Thoda ?

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given below is the receipt and payment account of health and fitness club for the year ended 31st march 2020

Posted by Soumya Singh 4 years, 11 months ago

CBSE > Class 12 > Accountancy

1 answers

Priyanshu Rawat 4 years, 11 months ago

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write a short note on short period goals in india in each five year plan?

Posted by Sparsh Rastogi 4 years, 11 months ago

CBSE > Class 12 > Economics

1 answers

Utkarsh Soni 4 years, 11 months ago

Objectives of Five Year Plan of India Economic Growth. Economic Equity and Social Justice. Full Employment. Economic Self-Reliance. Modernisation.

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What was the military blocs during the cold war?

Posted by Abaad Shaikh Shaikh 4 years, 11 months ago

CBSE > Class 12 > Political Science

2 answers

Ankush Bishnoi 4 years, 11 months ago

cold war was a war between USA and USSR for the supermacy. Both of these superpowers formed some military blocs such as NATO, SEATO, warsaw pact. these were also known as western and eastern allainces.

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Saloni Panwar 4 years, 11 months ago

Usa and ussr

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What is the Cold War? What caused the cold war?

Posted by Abaad Shaikh Shaikh 4 years, 11 months ago

CBSE > Class 12 > Political Science

2 answers

Komal Comrade 4 years, 10 months ago

Cold war means the absence of war and the political tension exist Causes of cold war:- 1. Both both countries are not increase their technology and infrastructure 2. Due to arm race

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Nagendran Krishna 4 years, 11 months ago

Cold war is the serius of problems and confrontations between the two superpowers and their respective allies Causes for cold war Emergence of superpowers after the second world war

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What was the 'Non Alignment' Movement ? Explain in 200 words.

Posted by Abaad Shaikh Shaikh 4 years, 11 months ago

CBSE > Class 12 > Political Science