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What Plants to Grow Starting a garden can be tough and it takes up a lot of your time. When saving your planet you will need to replenish the oxygen. The best way to accomplish this is to plant trees because they produce more oxygen than your average bush. The trees you should plant are apple, orange, avocado, and pear. These trees not only produce oxygen but they also produce fruit that have many purposes. Also you should plant tomatoes, aloe vera (for healing and moisturizing), rosemary bush (for cooking), grapes, blackberry bushes, and cabbage. These plants will get your planet back on track. The Pollination Process Plants reproduce through a process called pollination. First, pollen falls onto the stigma and over time the sperm cell and the egg cell unite inside the plants ovule. Once the plant is fertilized the ovary begins to swell and eventually turns into a fruit. There is one type of pollination called hybrid pollination in which the pollen comes from a different species. There is also Crosspollination which is the process of when the pollen from one plant lands on another plants stigma. Plant Classification Plant Uses Plants have many uses. They produce oxygen. Some produce fruits and vegetables. They are great for cooking or just eating straight from the plant. Some plants are good for your skin and others are good for healing. These plants also help to hold on to the soil to prevent landslides, and animals make their homes in them or around them. They provide shade for people on hot day, and some can be used to make paper or plastic. Most importantly they can be used to make houses. Plants are classified by a system called binomial nomenclature. This system consists of giving plants and living things two names, a genus and species. Both of the names are expressed in Latin. The genus is the family name and the species is the specific name that describes the genus. Plants are also given a common name that is not in Latin which we know them by. Plants are given these names according to their similarities and differences. When classifying these plants into their genus and species scientists often use branches. Some branches botanists might use to classify plants are whether they flower or don’t, and whether they produce seeds or not. They also distinguish plants by weather they have parallel veins or net veins. These are just a few branches the scientists might use. Planet: Impossible What to do if your planet is in need. BY Ellie Andrews and Brandy Alexander Hydroponics Hydroponics is a method of growing plants in a nutrient solution not soil. Hydroponics is useful because the solution has essential mineral nutrients. Also hydroponics is used in biology research and teaching. Another thing hydroponics is useful for is that it helps grow lots of plants in a minimal amount of space and it’s great for water conservation because you can reuse the water. The Parts of a Plant Roots Roots help provide support by anchoring the plant to the ground. Roots also soak up water and nutrients that are needed for growth. Sugars and carbohydrates that the plant uses to function are stored in the roots. There are two types of roots, taproot and fibrous. Taproots are roots with a few branches that are very thick and swollen. Carrots are examples of taproots. Fibrous roots are a bunch of very fine roots. For example grass has a fibrous root system. Stems Stems carry water and nutrients from the roots to the leaves. They also hold up the leaves so that they are exposed to the sun. The node is where the leaves join the stem and the internode is the space between the leaves and the stem. Food produced by the leaves travels through the stem. The cells that do this are called the xylem and phloem cells. The xylem cells move the water and the phloem cells move the food up or down the stem. Leaves Leaves are the food factories of green plants. Leaves are made to catch light and they have small openings to allow water and gases to come and go. Veins carry water and nutrients within the leaf. A simple leaf consists of a single leaf blade and a compound leaf consists of small leaflets. The petiole is the part that joins the leaf and the main stem. The cuticle is the waxy coating that protects the leaf. Plant Diagram The six major Components of Soil Flowers There are six key components to soil: sand, silt, clay, organic matter, bonemeal, and peatmoss. The ideal ph for soil is 7. An ideal soil contains equal amounts of the components. The makeup of the soil texture and the acidity affects the nutrients available to the plants. Flowers have a male part and a female part. The female part is called the pistil and is located in the middle of the flower. There are three parts of the pistil, the stigma, style, and ovary. The stigma is the sticky bulb that pollen lands on to start the fertilization process. The style is the long stalk that supports the stigma. The ovary is usually at the base of the flower and contains seeds that turn into fruit. The male part is called the stamen and consists of two parts, the anther and the filament. The anther produces pollen and the filament holds the anther up. Fruit Fruit is the ripened ovary of the flower. Seeds are protected by a seed coat that can be thin or thick. The seed also contains a short term food supply called the endosperm. It is used to help the seed germinate and grow. Seeds are a plants way of getting from one place to another. Photosynthesis and Transpiration Photosynthesis is the process by which plants and some other organisms capture light energy and use it to make foods from carbon dioxide and water. Photosynthesis is when carbon dioxide and water combine in the presence of light to produce sugar and oxygen. Transpiration is the process by which water vapor is lost through the plants leaves and other parts. This is a very important process. Many environmental factors that affect the rate of transpiration include light, temperature, humidity, wind, soil, and water.