- vascular plants with true roots - gymnosperms = “naked seeds” - cones/strobili - have seeds that develop on the surfaces of sporophylls instead of in ovaries like angiosperms - microsporangium produces pollen grains (sperm) and the megasporangium produces the egg - sporophyte generation is dominant - no water needed for fertilization – pollen travels with the wind Pine trees - monoecious (separate male and female cones on the same plant) - have
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ionised‚ other polar molecules such as salts‚ sugars and amino acids will dissolve readily in water. This allows water to be used for the transportation of such substances (notably in the bloodstream of animals and the xylem and phloem vessels found in plants). Water can be used in this way to transport many substances: nutrients‚ excretory products (eg urea‚ ammonia)‚ hormones and digestive juices can all be transported by using water as a solvent. Molecules such as starch and glycogen which are hydrophobic
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years ago‚ life on land was unsuitable for plants to live on with the little to no supply of oxygen and the harmful ultraviolet rays of the scorching sun. This lead to life beginning in the ocean where scientists have traced back to an ancestral bryophyte (also known as freshwater green algae) that has‚ over time‚ developed a key process of making food by using the energy from sunlight to convert carbon dioxide and water into by glucose and oxygen. The plant life history also involves the "alternations
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their hydrogen bonds break and shape change. This is also relevant in plants. When water is evaporated of leaves of the plant it cools it in the same way. This is also important as plants need to be a certain temperatures so that. Plants need to be at the correct temperature so reactions take place at the fastest rate and so they grow as much as possible. This is especially important in crops and agriculture Also for plants to grow at the fastest possible rate they have to have the correct amount
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like primary production‚ nutrient cycling‚ and various niche construction energies are sustained by the biodiversity within them and regulate the flux of energy and matter through an environment. Biodiversity is the variety and also the abundance of plants and animals in a particular environment and the processes that are functionally enriched by ecological interactions. The ecosystem is defined as a unit of biosphere which has the structural and functional parts. It consists of the biotic
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EXPERIMENT – 9 To Prove that Light is Necessary for Photosynthesis. Aim : To show experimentally that light is necessary for photosynthesis. Requirements : A potted plant‚ iodine solution‚ black paper strip‚ paper clips‚ water bath. EXPERIMENT PLEASE VIEW THE ANIMATION FILE FOR THE PROCEDURE Observation : 1) The region of the leaf which was exposed to sunlight turns blue in colour. 2) The region of the leaf covered with black strip turns brownish in colour
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Rainforest is a unique habitat filled with wildlife. With its tropical weather‚ the Amazon has an abundance amount of rain per year. In addition to that‚ this forest has a vast variety of animals and plants. All of these add to the water vapor going into the air. WIth all these vast variety of animals and plants‚ there is probably a lot of evaporation going on. The Amazon Rainforest is one of a variety of tropical rainforests. It is normal for tropical rainforests to be feel humid and warm with may days
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Agriculture= applied animal and plant sciences Horticulture= “garden cultivation” **“Icultures” olericulture= vegetables viticulture= grapes enology= wine and wine making floriculture= flowers arboriculture= urban trees pomology= fruit Top Sellers: Fruit= grapes (wine‚ juices) Vegetables= Irish potatoes (chips‚ fries) In the world of horticulture‚ California is the number one grower Georgia horticulture: **first in greens and pecans third in blueberries fourth in fresh vegetable production
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Which of the following process maintains the carbon dioxide-oxygen cycle? | respiration | | photosynthesis | | fossil fuels | | decomposition | Question 2 Explanation: the carbon dioxide- oxygen cycle is maintained in the respiration of plants and animals. Question 3WRONG | Based on the table below‚ which would best describe Class Aves? | Emperor Penguin | Common Raven | Kingdom | Animalia | Animalia | Phylum | Chordata | Chordata | Class | Aves | Aves | Order | Sphenisciformes
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Animal and plant both synthesize fats and proteins from carbohydrate. Thus‚ glucose is a basic energy source for all living organisms. The oxygen released(with water vapour‚ in transpiration) as a photosynthetic byproduct‚ principally of‚ phytoplankton‚ provides most of the atmospheric oxygen vital to respiration in plants and animals‚ and animals in turn produce carbon dioxide necessary to plant. Photosynthesis can therefore be considered the ultimate source of life for nearly all plants and animals
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