Fixed 1. A thin cuticle. Cuticles primarily discourage water loss; thus most hydrophytes have no need for cuticles. 2. Stomata that are open most of time because water is abundant and therefore there is no need for it to be retained in the plant. This means that guard cells on the stomata are generally inactive. 3. An increased number of stomata‚ that can be on either side of leaves. 4. A less rigid structure: water pressure supports them. 5. Flat leaves on surface plants for
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This experiment was conducted to see if the brain would perform better in mathematical tasks‚ if there was an increase in blood flow through exercise. The increase in blood flow should help the brain to perform better as it receives more oxygen. This is because all cells require oxygen for cellular respiration. To test this‚ three females‚ aged 16-17‚ were asked to answer four mathematical questions for four trials. As each trial progressed‚ subjects had to run on the spot for an extra 30s. It was
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Wasps By Sami Missing The wasp‚ or Vespula Vulgaris‚ as it is known scientifically‚ is an insect. It’s color is black and yellow; it has a length of one-half inches and a wing span of 0.0079 inches. As all insects‚ the wasp has bilateral symmetry‚ an exoskeleton‚ two eyes‚ six legs‚ and three body parts. It has two antenna and 2 wings. The wasp is part of the Animalia Kingdom‚ Arthropoda Phylum & Insecta Class. The life cycle of a wasp begins with an egg and ends sometime between 12
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The aim of this investigation was to determine which component wavelength of light functioned best in a brine shrimp’s phototaxic and photokinetic responses. It was hypothesised that the brine shrimp would display a heightened positive phototaxic response‚ and that a more pronounced photokinetic response (increased velocity) would be observed when the samples were exposed to green light. Artemia salina (common name: Brine Shrimp)‚ are from the order Anostraca of the class Crustacea. Adult brine
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Farmed Crawfish vs Wild Crawfish You may have wondered where the mudbugs for your boil came from. Nearly all of the live crawfish sold in the U.S. come from Louisiana‚ and begin life in the wild or on a farm. Market demand for crawfish in the U.S. of any kind originated in southwest Louisiana with the French Acadian settlers. As more Americans were exposed to the crawdad experience‚ demand elsewhere increased. This demand led to more productive ways than catching and trapping them in the wild‚ thus
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The Effect of Ethanol on the Viability of Artemia salina as Environmental Indicators Biology 151 Laboratory ABSTRACT Artemia salina are used as environmental indicator species. They are used to test changes in their environment. A. salina is sensitive to toxins‚ temperature‚ and drugs. For the experiment‚ cysts were put into different amounts of ethanol alcohol and their viability was measured. The hypothesis used was if there is more ethanol alcohol‚ then the viability
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Essay 2 Aleksandar Radoičić 145/11 My Childhood Fear Why do people have fears? Why do we let fears control our lives? I never thought I would ever get over my own fears. These fears made my childhood very difficult and hard to deal with. When I was a kid‚ I was scared of spiders. As great as my parents were about letting their kids explore the world and letting us develop our own opinions about the organisms we encountered‚ I think my fear of spiders was largely my dad’s
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Response of the Organism: Hyalella azteca Chemosensory organs in many crustaceans including Hyalella azteca allow them to locate food and mates while entirely avoiding predators. When detecting environmental changes such as the change in chemicals such as salinity‚ many amphipods have tiny hair-like organs containing sensory cells called sensilla (Hallberg‚ 2011). These chemosensory olfactory receptors are virtually found on many parts of the crustacean body including antennae‚ mouthparts and tips
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It is my opinion that spiders should be banished to Room 101 - the world would most likely be a better place without them. I am not arachnophobic‚ as I am not afraid of scorpions or other arachnids‚ but I am absolutely terrified of spiders. Merely the thought of them fills me with dread and causes me to shudder. Many people consider this fear to be irrational but in my opinion‚ these people are ignorant of the true nature of spiders; it is my belief that spiders are pure evil and quite possibly the
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Ng Boon Yee/ Group B06/ A0099215Y Comparison of Organisms from the Class Oligochaeta and Class Chilopoda Animal phylogeny is an interesting and rapidly changing field of study. To date‚ there are about 1.5 to 1.8 million species of animals that have been named and described by biologist with 15‚000 to 20‚000 new species named each year. However‚ millions more species are yet to be discovered and classified. Taxonomists have divided the animal kingdom into about 35 phyla (Solomon et al.‚ 2011). Out
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