(Originais Teachy 2023) - Question Medium of Sciences

Natural phenomena can be considered as extremely important events for our planet, as they influence the climate and the life of the species that exist on it. For example, rains are necessary to keep the rivers and lakes full and thus ensure drinking water for all living beings that depend on it to survive. Which of the following is an example of a natural phenomenon that contributes to the balance of the Earth?

Imagine that our body is like a very large city, and the blood needs to reach all parts of this city to deliver oxygen and nutrients. The circulatory system is like the road network of this city, with the heart being the central pumping station and the veins and arteries being the avenues and streets through which the blood travels. Based on what you have learned about the circulatory system, explain how the heart, veins, and arteries work together to circulate blood through the body and mention at least one important function of each of these components.

Plants are very important living beings for our world, and each part of them has a special function. The root helps the plant stay in place and take water from the soil, the stem holds the plant up and carries water to the leaves, the leaves use sunlight to make food, the flower attracts insects and animals to aid in reproduction, the fruit protects the seeds and helps the plant spread. With that in mind, choose a plant you know, like a flower you have at home or a tree from school, and describe a function for each part of that plant: root, stem, leaf, flower, and fruit. Explain why each of these parts is important for the plant to live and grow healthily.