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Biology SS 1 Week: 6 Topic: Peripheral Nervous System Introduction The peripheral nervous system (PNS) is the division of the nervous system containing all the nerves that lay outside of the central nervous system (CNS), that is, the PNS consists of all other nerves and neurons that do not lie within the CNS. The peripheral […]
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Biology, SS 2,Week: 7 Topic: Feeding in Amoeba, Hydra and Man Amoeba Feeding Amoeba feeds on microscopic organisms such as single-celled algae and bacteria. When the amoeba encounters a suitable organism, the cytoplasm flows round the prey and engulfs it, with a drop of water, in a food vacuole. The cytoplasm secretes enzymes into the
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Biology SS2 Second Term Week: 4 Topic: The Fruit Introduction A fruit is the ripened ovary or ovaries of a flowering plant, together with accessory parts consolidated with it, containing the seeds and occurring in a wide variety of forms and to some extent assists in the dissemination of the seeds. Typically a fruit start
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Biology, SS 1 Topic: Functioning Ecosystem Introduction An ecosystem is a basic functioning unit in nature. It is made up of living organisms (plants and animals) and their non-living environment. The biotic or living components such as the producers and consumers interact in their environment resulting in the ecosystem being a functional unit. Autotrophs, Heterotrophs
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Biology, SS 1, Week: 4 Topic: Food Production and Storage Introduction The various effective farm practices like mechanized farming, crop rotation, mixed farming, coupled with other factors such as government funding, ability to store and process agricultural products, carrying out of researches, adequate rainfall, pest and disease control, soil texture, soil pH, soil fertility, temperature,
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Biology SS 2 Topic: Cell Reactions to Its Environment (Irritability) Irritability or sensitivity is the ability of a cell to respond to stimuli. All living things respond to stimuli. A stimulus is a change in the cell’s environment that can make it change its activity. The cell’s change in activity is known as its response
Definition Of Biomes Large biotic communities corresponding to vegetation belts or zones are called biomes. Biomes are described as any large natural terrestrial ecosystem. The type of any biome is largely determined by climatic factors, especially rainfall and temperature. Thus, regions of the world with similar climates have similar biomes. The local biomes in Nigeria
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