Flowering plants reproduce sexually through flowers. Flowers contain male stamen that produce pollen and female pistils. Fertilization occurs when pollen is transferred, or pollinated, to the stigma of the pistil. Pollination can be self-pollination within a flower or cross-pollination between flowers. After fertilization, the ovary develops into a fruit containing seeds. Seeds are dispersed by various methods and may germinate to form a seedling with root, shoot, and leaves developing from the radicle, hypocotyl, and epicotyl respectively.
Are we not lucky that plants reproduce sexually? The myriads of flowers that we enjoy gazing at, the scents and the perfumes that we swoon over, the rich colours that attract us, are all there as an aid to sexual reproduction. Flowers do not exist only for us to be used for our own selfishness. All flowering plants show sexual reproduction.
in this slide the chapter explanation is according to NCERT Syllabus which would be helping students in every field..
7th grade Life Science Powerpoint on the basics of plant reproduction. Flowers, pistil, stamen, pollination, fertilization, pollen dispersal, seed dispersal.
if you want to be a champion in the kingdom Animalia, then it is best for you .
this slide show covers all important features , characteristics of organisms under kingdom animalia
Sexual and Asexual reproduction in plants with pollination and development of gametophytes and double fertilization with embryo and endosperm formation.
Are we not lucky that plants reproduce sexually? The myriads of flowers that we enjoy gazing at, the scents and the perfumes that we swoon over, the rich colours that attract us, are all there as an aid to sexual reproduction. Flowers do not exist only for us to be used for our own selfishness. All flowering plants show sexual reproduction.
in this slide the chapter explanation is according to NCERT Syllabus which would be helping students in every field..
7th grade Life Science Powerpoint on the basics of plant reproduction. Flowers, pistil, stamen, pollination, fertilization, pollen dispersal, seed dispersal.
if you want to be a champion in the kingdom Animalia, then it is best for you .
this slide show covers all important features , characteristics of organisms under kingdom animalia
Sexual and Asexual reproduction in plants with pollination and development of gametophytes and double fertilization with embryo and endosperm formation.
Este trabajo fue realizado por la alumna Paulita de Carabasa de segundo año de Polimodal, a partir de los contenidos de Biology.
Gracias!!! Paula. Excelente trabajo...
The fifth grade Kids Care Club has developed a personal connection by adopting a school in Haiti: Dumarsais estime de Port au Ceil. Through project Operation Water Well, Sope Creek will be able to bring running water to this school. The water crisis in Haiti was worsened by the recent earthquake and Sope Creek students want to help.
Sope Creek Elementary is partnering with H2O for Life (www.h2oforlifeschools.org) to help make this possible. Every penny raised by our students will be matched by Save the Children and 100% of the money we collect will go directly to digging a well at our adopted school.
The Kids Care Club will be collecting donations on March 3, 4, & 5. Parents can make tax-deductible donations by writing a check directly to H2O for Life Schools, a 501(c)3 nonprofit organization.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
5. FEMALE REPRODUCTIVE ORGAN
Pistil
Stigma –top of the pistil,
Sticky surface for pollen to
stick
Style – connects the stigma to
the ovary
Ovary –contains ovules
(eggs)
MALE REPRODUCTIVE ORGAN
Stamen
Anther – produces sperm
nuclei by meiosis. Sperm
nuclei are enclosed by pollen
grains
Filament – holds the anther
up
6. POLLINATION
The transfer of pollen grains from anthers to
the stigmas
Pollination agents :
•Wind : Anemophily
•Insects : Entemophily
•Birds : Ornithophily
•Animals : Zoophily
8. TYPES OF POLLINATION
1. Self pollination
The transfer of pollen from the anther to the stigma of the
same flower, or of another flower of the same plant.
Same Plant’s FlowerSame Flower
9. 2. Cross pollination
The transfer of pollen to a flower on a different plant of the
same species.
Different Plant’s Flower
10. FERTILIZATION AND DEVELOPMENT IN FLOWERING PLANTS
•Pollen grains send out pollen tubes which grows down the style
& ovary, towards the micropyle.
•Pollen grains are attracted by sugars in stigma and secrete
enzymes to digest a pathway through the style
11. double FERTILIZATION
Male gamete goes into the ovule and fertilizes with the egg cell.
The other male gamete fuses with the polar nuclei to form the
triploid endosperm
12. Development of Fruits and Seeds
Fate of floral parts after fertilization
Floral Part Fate after fertilization
(a) sepals, petals &
stamens
All wither and drop off
(b) ovary
i) ovary wall
ii) ovule
iii) integuments
iv) fertilised egg
Becomes the fruit
fruit wall
seed
seed coat (testa)
embryo
13. A fruit is an ovary after fertilization and it contains seeds
Functions:
Fruits : protect & disperse the embryo
Seeds : protect the embryo
Provide food for the embryo
Help in dispersal of the plant
14. Fruits and Seeds Dispersal
(1) by wind,
(2) by animals,
(3) by water,
Significance of fruits & seeds dispersal
It prevents overcrowding & competition for
limited resources.
It allows the plants to have their seeds to
land on suitable places for germination, thus
increases the chance for the plants to
colonize new areas.
15. seedling
Micropyle –opening in ovule where pollen tube attached,
sperm entered
Hilum –scar where ovule attached to ovary
Radicle –embryonic root
16. SEED GERMINATION
PARTS OF A SEED
Seed coat
Epicotyl
Cotyledons
Hypocotyl
Seed
coat
Endosperm
Epicotyl
Hypocotyl
RadicleCotyledo
n
• Dicot
• Monocot
17. Epicotyl – grows above the cotyledons and gives rise
to the leaves.
Hypocotyl –below the point of attachment of the
cotyledon, develops into the stem.