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Asexual reproduction is a mode of reproduction in which a single organism produces offspring without the involvement of gametes or fertilization. In this process, the offspring are genetically identical to the parent, as they inherit the same set of genes. It is common in many plants, fungi, and simple organisms such as bacteria and protozoa. Common types of asexual reproduction include binary fission, budding, fragmentation, and spore formation. This method allows for rapid population growth in favorable conditions, as it does not require a mate and can occur quickly. However, since there is no genetic variation, the offspring may be more vulnerable to changes in the environment or disease.Asexual reproduction is a type of reproduction that involves only one parent and does not require the fusion of gametes. In this process, the offspring produced are genetically identical to the parent, meaning there is no variation. Asexual reproduction is common in many simple organisms, such as bacteria, fungi, and some plants. Examples of asexual reproduction include binary fission in bacteria, budding in yeast, and spore formation in fungi. Some plants can also reproduce asexually through methods like runners or tubers. This method of reproduction is usually faster and allows organisms to increase their numbers quickly, but it does not create genetic diversity, which can make organisms more vulnerable to diseases and changes in the environment.

Hi,

The study of all the materials of the universe. We can find the worth of anything by observing the material. The observation can make the whole process easily to find the worth. Observation can be done by using our five senses e.g looking or seeing to a substance, taste, smell, touch and listening.

The word chemistry comes from Greek word as the Greek peoples were the expert of making new things. The word Chemistry shows the "Chemists" were trying like " chemist try" to make or try to make the life easy. They want to prolong the life, also they trying to change the base metals into gold.

The period of 600-1600 is called the period of alchemist. Jabir bin Hayan was the most popular chemist at that time. He made crucible, wire guaze, funnel etc for the first time. He also introduced the process of filtration, sublimation etc 

Chemistry makes our lives easy The food we eat, the soft og cold drinks we take, even the food we cooked are based on the principles of chemistry.

In previous ages, a person became a patient of any disease cannot be diagnosed by ordinary techniques but Now a days we see that a physician simply check a patient by performing a simple blood or urine test. He can find a disease and managed.

in simple words the study of life is the study of chemistry 

Hi everyone my name Vanshika . I am from Mohali . As you know online education is expanding rapidly . Every student deserves personalized attention , prepared notes, regular test and engaging classes. One of the main reason that student lacks behind is that many are introverted and teachers are unable to give personalized attention to every student . I am promise that I will provide a very warm welcoming environment to the students and will analyze each and every student growth and help students to build basic to advance understanding in the subject of biology . Often many students feel biology as a boring or cramming subject but it's not the truth biology is also based on concepts and understandings . I will schedule online tests after very topic completion as well as parent teacher meetings to tell parents about their child's academic growth and the areas to work on . I need this job as a biology educator for CBSE board students from classes 9th toh 12th I assure you that I will work hard and give my everything to this job . I am always ready to take extra classes and doubt solving classes whenever students feel doubt while studying they can contact me whenever they need . I am a beginner and I will make sure that my students will not face any difficulty in my subject .

Thankyou !

WEEK ONE AND TWO TOPIC: COMMON WEEDS FOUND IN FARMS CONTENT Meaning of Weeds Effects of weeds on crops and the Economy Various types of weeds and their botanical names Methods of weed control MEANING OF WEEDS A weed is any plant that grows in a place where it is not (expected to grow) wanted ECONOMIC IMPORTANCE OF WEEDS They compete with crops for space Weeds compete with crops for sunlight Weeds compete with crop for nutrient Weeds habour crop pests and pathogens Weeds compete with crop for soil moisture It leads to loss in crop yields Weeds compete with crop for soil oxygen They reduce the quality of crops They reduce the income of farmers They cause reduction in the taste of some grasses Some weeds are toxic to farm animals BENEFITS OF WEEDS TO FARMERS Weeds helps in checking soil erosion Some weeds are useful as food for humans Some weeds serve as food for animals Certain weeds have medicinal values They can be used as green manure Some are used for making roots, mats and baskets Weeds are used for mulching Weeds are used for compost making EVALUATION What are weeds? List five beneficial effects of weeds CHARACTERISTICS AND GROWTH HABIT OF WEEDS Production of large quantity of seeds Some weeds reduced by seeds Some weeds reduced by vegetative propagation Growth of large leaves within a short time Weeds growth is favoured during rainy season Most weeds are wind pollinated Production of large quantity of pollen grains DISPERSAL OF WEED SEEDS AND FRUITS Most seeds and fruits of weeds are generally dispersed by wind and animals. The mode of dispersal are; Dispersal of seeds by wind Such weeds have feathery, winged or powdery seeds e.g. Tridax (pwd weed), goats weed, guinea grass, elephant grass and many other species of grasses. Dispersal of seeds by Animal Animal dispersed weeds usually have sticky, hooked, edible or colourful fruits or seeds. The sticky and hooked types of fruits and seeds adhere to the coats of grazing animals and are carried from one place to another. Examples of such animals are; rabbits, rats squirrels, antelope and man. Pig weed and commelina spp are example of such weed. Dispersal of seeds by water Water dispered weeds have water proof cuticles, air spaces within the fruit and a light weight Dispersal of seeds by explosive mechanism Few plants and all leguminouns weeds are dispersed by explosive mechanism eg water leaf, centro, pueraria, calapo and mucuna. COMMON WEEDS FOUND ON FARMS S/N COMMON NAME BOTANICAL NAME 1. Guinea grass Panicum maximum 2. Bahama grass Cynodon dactylon 3. Carpet grass Axonopus compressus 4. Cogon grass Imperata cylindrica 5. Spear grass Heteropogon contortus 6. Wild sun flower Aspilia Africana 7. Centro Centrosema pubescens 8. Water leaf Talinum triangulare 9. Wire/sida weed Sida acuta 10. Goat weed Ageratum conyzoides 11. Elephant grass Pennisetum purpureum 12. Giant star grass Cynodon plectostachyum 13. Pig weed Amaranthus spinosus 14. Tridax Tridax procumbens 15. Calapo Calapogonium mucunoides 16. Sunhemp Crotalaria juncea 17. Mucuna Mucuna utilis 18. Stylo Stylosanthes gracilis 19. Northern gamba Andropogon gayanus 20. Southern gamba Andropogon tectorum 21. Puero Pueraria phaseoloides EVALUATION List and explain different weed dispersal method List five weeds and their botanical names GENERAL CONTROL OF WEEDS Mechanical control: involves the use of machines such as bulldozer, tree puller, plough etc to get rid of unwanted plants. Physical or manual control: This can be done in different ways which includes hand pulling, hoeing, slashing with cutlass etc. Biological Control: This involves the introduction of some insects and herbivorous animals to farmland to eat up the leaves of the weed and even the entire plant in some cases. Cultural control: This involves the use of farming system to get rid of wed. It can be achieved by practice of crop rotation and the growing of cover crops to suppress the growth of the weeds on the farm. Other types of cultural weed control methods are: flooding, bush burning, mulching Chemical Control: This involves the use of chemical solution called herbicides to control weeds. Some herbicides are selective while some are non-selective or contact herbicide REASONS WHY WEEDS ARE DIFFICULT TO CONTROL They have vigorous growth, they are aggressive and persistent Weeds have high reproductive capacity Their seeds have long period of viability Weeds have efficient dispersal method They have efficient means of propagation They have long period of dormancy They produce many seeds They have short life cycle .

Hello everyone, I am a uni student that looks forward for opportunities and experiences that I require at the moment for I lack financially to support myself.

I had competed before representing my school with the caregories “Essay Writing” and Spelling Bee” in the same year. I also competed in a different kind of category which is called “Cultural Dance” where I also learned good communication even in dance.

I have the ability to teach students from elementary to highschool the English language as this is where I excel.

I can teach basics to the more complicated rules and principles of the English language.

I have great communication skills and can interact with children with ease. I have experience of teaching kids different subjects before and it seems fun to me.

I may not be the best tutor out there, but I promise to do my very best in teaching children what I know and will make sure they learn in every session I will have with them.

I am looking for a job because I needed to earn money for myself as I cannot live only with the money I’m receiving.

I hope this account find the right person and let me be their chosen English tutor.

Hi everyone! My name is Trishia.

Today, more and more students are learning online. Many of them are searching for a tutor who can guide them and make learning easy and fun. I believe I can be that tutor for you! I think a good teacher should be kind, friendly, patient, and always ready to listen. I want my students to feel comfortable talking to me—not just about studies, but also about their problems, worries, or even something funny that happened during the day.

I am currently a student of Hospitality Management, but along with my studies, I truly enjoy teaching. I have been teaching for 3 years, and in that time, I have helped many students understand their subjects better. I can teach all subjects for any class up to class 12. I always try to explain things in simple and easy ways so that my students can follow without stress. I understand that every student is different. That is why I use different methods to match their way of learning.

I really want this opportunity, and I promise to give my best. I will help my students solve any doubts and feel confident. My goal is to make learning a positive and happy experience.

As the saying goes, “The expert in anything was once a beginner.” I believe we can always learn and improve together.

Thank you so much for your time! I look forward to teaching you.