Recursos educativos process página 38

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The first humans. The Palaeolithic Age
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1.1. Human evolution About six million years ago in Africa, some primates began to adapt to new climatic conditions. These first hominids evolved over time into human species. The most important changes…
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Check. The consequences of colonisation
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Remember what you have studied in this section and answer the questions: How were local landscapes affected by the process of colonisation? What were the negative effects of improved health and…
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Internal geodynamics and surface relief
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The forces inside the Earth cause mountain chains to form They also deform rocks and form folds, or break rocks and cause geological faults or joints. 6.1. Mountain ranges Mountain ranges are chains of…
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The importance of plants in everyday life
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Part of our diet is made up of plant products. They are very important. They provide us with carbohydrates, vitamins, mineral salts and fibre, which are all essential for a healthy diet. When we eat…
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Complete. A summary of plant reproduction
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Write these words in the correct spaces: bulbs zygote spores ovule stamens tubers calyx seed germination transferring pistil embryo stamens A flower is made up of a , a corolla, and a pistil.…
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Pollination, fertilisation and the formation of seeds
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Pollination Sexual reproduction in plants occurs when a spermatozoid meets an ovule. For this to happen, the pollen grains need to travel from the stamens to the pistil. This process of transferring…
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Video: Protein Synthesis
Tiching explorer Organización
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This animated presentation explains the transcription and translation process to build cellular proteins out of DNA. We compare prokaryotic and eukaryotic protein synthesis and focus on the former. We…
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Self-evaluation 3 - Society and the environment
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Which concept refers to each of the following definitions: Contamination of the atmosphere caused by different agents, such as factories and motor vehicles. A gradual alteration in the planet's…
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Correct. Birth
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Correct the underlined mistakes in the text with the correct words: umbilical caesarian section fetus navel vagina ova zygote sperm Birth is the process in which the embryo is born, it travels from the…
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The importance of plants
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Photosynthesis is an essential process for plants because it provides them with food. It is not only plants that benefit from photosynthesis. All living things benefit for two reasons: Animals depend on…
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