- 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
Premium Fruit Leaf Seed
It was hypothesised that as the concentration of NaHCO3 solution increases‚ as will the rate of photosynthesis until optimal levels are reached‚ then plateauing of results will occur. The hypothesis was refuted by evidence shown in the results (table two) as 0.5% concentration produced the greatest rate of photosynthesis‚ 3.10x10-3. Concentrations of 5% and 10% were deemed unusable as the agapanthus discs would not submerge‚ therefore the results did not enable a range of data. The results of
Premium Oxygen Photosynthesis Carbon dioxide
eaten by the anemones. The crab benefits because if any predator tries to attack‚ not only can it retract into its shell but the anemone can sting the predator which usually scares it away. Caribbean Example: Ants and Aphids. Aphids when feeding on plants secrete a sweet substance called honeydew‚ this honeydew is loved by ants and as a result they consume it. In exchange for the honeydew‚ the ants provide protection for the aphids from predators such as Ladybugs. Both organisms benefit equally from
Premium Symbiosis Parasitism Ant
poor nutrients‚ and short growing seasons. There is a very low precipitation of less than five inches a year which is coupled with strong‚ dry winds. There is a very large annual amount of snowfall in the region which surprisingly is advantageous to plant and animal life as the snow provides and insulation layer on the surface of the ground. All vegetation and wildlife living in this biome band are extremely hardy and particularly specialised to survive in the Tundras extreme weather conditions. Typical
Premium Climate Plant Biome
Temperate Deciduous Forest Biome Geographical Location The geographical locations of temperate deciduous forest biomes are in the eastern part of the United States and Canada‚ most of Europe‚ parts of China‚ and Japan. They are located between the polar regions and the tropics. Climate Conditions The weather of the temperate deciduous forest biome has four distinct changing seasons of winter‚ spring‚ summer‚ and fall. The seasons occur here because of the Earth’s tilt on its axis which allows
Premium Plant
sulfur and phosphorous cycle. Their main reservoirs are in soil and rock sediments. Sulfur enters the cycle as hydrogen sulfide and is oxidized to sulfur dioxide. Sulfur dioxide and water vapor makes sulfuic acid in the rainfall. It is then absorbed by plant roots and turned into amino acids traveling through the food chain and released by decomposition. In the phosporous cycle‚ phosporours is released through erosion or mining. It is then absorbed by roots and then travels through the food chains and
Premium Water Oxygen Water cycle
Photosynthesis is a crucial energy conversion process that occurs in the chloroplasts of eukaryotic cells. The rate of photosynthetic activity holds importance in environmental‚ horticultural and agricultural situations. (Boardman‚ N.K. 1977). Pigments in the chloroplasts thylakoid membrane absorb the electromagnetic radiation from a light source and release an electron into the electron transport chain. DCPIP’s chemical ability to favourably accept electrons‚ and undergo a colour change from
Premium Photosynthesis Light Oxygen
of Bulimba creek is too high. With a high conductivity level‚ less oxygen will be dissolved therefore resulting in organisms not able to survive. In typical circumstances‚ the roots of native plants absorb most water entering the dirt before it achieves the salt contained in groundwater underneath the plant root zone. On the other hand‚ widespread vegetation‚ poor area use‚ irrigation and modern practices have made it easier for salt to be transported to the dirt surface or to
Premium Water Water pollution Oxygen
High technology system is developed to support the industrial business. Some of new technology system that has been invented are not eco-friendly. For instance‚ in Agriculture industry‚ pesticide is used for controlling the pest that can harm the plant. The consequences of using pesticide that can
Premium Natural environment Ecology Construction
Block B Photosynthesis Lab 12/6/12 Introduction: Photosynthesis is affected by light intensity‚ water‚ and temperature. Plants grow more abundantly because the weather is warm. Carbon Dioxide given off by animals is consumed by plants that replace the oxygen animals take it. Experimentation will help understanding how plants are vital because of the oxygen they release. If leaf disks in the experiment release oxygen‚ they will undergo photosynthesis and float. If there
Premium Photosynthesis Oxygen Carbon dioxide