Monica Gagliano at the University of Western Australia has gathered evidence that some plants may also emit and detect sounds, and in particular, a … (c) Describe the cuttings method for the artificial propagation of plants. It is performed in case of high quality Apple, Mango, Pear and some other plants. (d) Name any two plants which are usually propagated by the cuttings method. How do organisms reproduce Class 10 – Here is Class 10 Science Chapter 8 How Do Organisms Reproduce. Solution: In the case of plants, the pollen grain releases two male gametes. May 2022 This article is having the latest cbse class 10 Science chapter 8 How do organism reproduce notes and questions. Topics covered in the lesson are Reproduction, Fertilization, Sexual reproduction in plants, Menstruation, Process of pollination, Methods to control population, Sexual … • How do flowers help other organisms in our environment? This movement of pollen from one flower to another allows the plant to reproduce. How Do Organisms Reproduce Class 10 Notes, Explanation with Video, Question Answers . (b) Benefits of Spore Formation, Spores are a means of dispersal. A pollinator, such as a bee or a bird, will transfer the pollen from the anther (the male structure) to the stigma (the female structure) on another flower to fertilize it. It's a topic we'd rather not think about, where does last nights dinner go when we flush it down the drain? But one thing they have in common is the need to reproduce, or create a new generation of offspring. [CBSE 2013] Answer: Banana. Reproduction is essentially a process by which individuals produce new individuals of the same kind. These bacteria are called pathogens. One fuses with the egg and forms the zygote. Some examples of pathogens are leprosy, food poisoning, pneumonia, tetanus, and typhoid fever. This fusion is said to be triple fusion. The new plants produced by vegetative propagation are an exact copy of their parent plants. (CCE 2012) Answer: (a) Grafting. Most bacteria aren't dangerous, but some are and can make us sick. 7. These plants are called non-flowering plants. Before they begin the experiment, however, students must come up with a well … 4.2 Non-flowering plants Some plants do not use flowers to reproduce. How do we know that Name a plant in which layering produces a new plant. Name a plant that has lost the capacity to produce seed. Flowering Reproduction • Describe how flowering plants reproduce. 8. It can reproduce by vegetative propagation. Fungi Definition. The many plants and animals in nature that look, sound, and act differently. Thus, inside an embryo sac, two fusions, syngamy and triple fusion, take place. The scientific name for flowering plants is angiosperms. Runners like strawberry reproduce through stems. Organisms reproduce to continue the chain of life, to pass on its genes which are acquired over millennia. Pathogens can cause diseases in animals and plants. Why Do Plants Have More Than One Pigment? Sexual reproduction is the most common life cycle in multicellular … And this process is very important for the existence of life on earth. The other male gamete fuses with the two polar nuclei. They use this technique to compare the amounts of photosynthesis that occur under conditions of low and high light levels. Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete (such as a sperm or egg cell) with a single set of chromosomes combines with another to produce a zygote that develops into an organism composed of cells with two sets of chromosomes (). An example of organisms that flowers … The detached part then starts a life of its own. Name any two consequences of unsafe sex. Answer 3: Plants have different reproductive manners. Fortunately, we have antibiotics we can take which help to fight off the bad pathogens. Illustrate your answer with the help of labelled diagrams. Students learn a simple technique for quantifying the amount of photosynthesis that occurs in a given period of time, using a common water plant (Elodea). For instance, flowering plants rely on insects to harvest pollen. Different organisms reproduce in different ways. Describe double fertilization in plants. It is the large numbers of organisms belonging to a single species that bring them to our notice. ... Read the and answer the questions from (i) to (v) given below. There are two main groups of non-flowering plants. Another example are fruit bearing plants - anything from apples to berries to cucumbers - essentially any food with a seed inside. Flowering plants produce seeds within a fruit. Plants that use spores to reproduce and plants that use seeds to reproduce. Question 5. [CBSE 2012] Answer: The two consequences of unsafe sex are: Transmission of sexually transmitted diseases; Unwanted pregnancy; Question 6. Solution : (a) A small part of the plant which is removed by making a cut with a sharp knife is called cutting. It is useful in those plants/animals, which cannot reproduce sexually. Flowering plants reproduce through pollination. The spring planting works only if you have nice strong plants in pots and do not disturb their roots, then there is a harvest too, because honestly there would be fruits even if you would leave them untouched in the pots. If a leaf falls on damp soil, it can give rise to a new plant. Fungi (singular: fungus) are a kingdom of usually multicellular eukaryotic organisms that are heterotrophs (cannot make their own food) and have important roles in nutrient cycling in an ecosystem.Fungi reproduce both sexually and asexually, and they also have symbiotic associations with plants and bacteria.However, they are also responsible … How can it reproduce? (b) List any two benefits to an organism that reproduces through spores. 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