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3. Lichens( ) C)swer the following questions.ParasiteWhat are the principles of cell theory?Write your observations when you observed onion peel under the mof what you have observed.What is biodiversity, prepare an essay on biodiversity and conservWhat happens if there are no plants on earth. Imagin.wer the following questions.ill the following table.Shape of the Name of the cellName of the‚Äč

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  1. a plant or an animal that lives in or on another plant or animal and gets its food from it. Parasites sometimes cause disease
  2. The cell theory states that all biological organisms are composed of cells; cells are the unit of life and all life come from preexisting life. The cell theory is so established today that it forms one of the unifying principles of biology.
  3. There are a large number of regularly shaped cells lying side by side and each cell has a distinct cell wall. A distinct nucleus is present on the periphery of each cell. ... A large vacuole is present at the centre of each cell, and is surrounded by the cytoplasm.
  4. Biodiversity includes the diversity of the plant and animal species present in the earth including the microorganisms and the environment in which these organisms live. Several in-situ and ex-situ conservation strategies have been introduced that helps preserve the biodiversity.
  5. Human beings and other animals need plants to live. When green plants make food, they give off oxygen. This is a gas that all animals need to breathe in order to stay alive. Without plants, animals would have no oxygen to breathe and would die.0
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