provides the perfect living conditions for their species. The four species being examined today are the American Robin‚ the Wood Stork‚ Great Blue Herron and the Double Crested Cormorant. The American Robin’s diet consists of a wide variety of berries earthworms and insects‚ and they are found throughout North America. Communities or Robins are found in several biomes‚ including forests edges‚ woodlands‚ grasslands‚ tundra and forests regenerating from recent fires‚ they are also found in populated urban
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A. Why was there evolutionary pressure for shell to evolve to a pen? There was evolutionary pressure for the shell to evolve into a pen for locomotion‚ propulsion‚ movement‚ and protective reasons. The pen can be seen in modern cuttlefish‚ squid and octopods. The pen was more beneficial than the shell because it is now internalized and doesn’t weigh down the organism‚ the organism is now able to float horizontally in water and allowed the organism to develop fins for better locomotion. The loss of
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Hydrochloric acid‚ sodium chloride‚ the glass rod‚ and heat. II. Activity 8: Nerve Conduction Velocity • In this activity‚ we will be investigating action potential like in activities 1-4‚ and the nerve conduction velocity. We will test an earthworm nerve‚ frog nerve‚ and two rat nerves on the oscillator. The factors that helped determine action potential were the Bio-amplifier‚ stimulator‚ ethanol‚ and voltage. C. Materials • PhysioEx CD-Rom‚ computer‚ lab manual. D. Methods I. Activity
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_________________________ ____ 13. Hookworms can be contracted by eating improperly cooked infected pork. _________________________ ____ 14. The most complex and most recently evolved mollusks are gastropods. _________________________ ____ 15. Earthworms are hermaphrodites because each worm produces both eggs and sperm. _________________________ ____ 16. The respiratory organs in aquatic gastropods are primitive lungs. _________________________ ____ 17. Gastropods have two shells. _________________________
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Chapter 32/33: Invertebrates Name _______________________ Period ___________ Date ____________________ NONCOELOMATE INVERTEBRATES (CH 32) Sponges are basal animals that lack true tissues 1. Sponges are in the phylum Porifera. This group is now known to be polyphyletic‚ and all sponges belong to either phylum Calcarea or phylum Silicea. They are the simplest animals and lack true tissues. Label the following: pores‚ spongocoel‚ epidermis‚ amoebocytes‚ choanocyte‚ flagellum‚ spicules
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Soil‚ which is one of the most important natural resources‚ is often less heeded. The importance of soil conservation is relatively less talked about as compared to the conservation of water and other natural resources. The almost-omnipresent soil is mostly taken for granted. Its omnipresence is ironically the reason behind us‚ human beings‚ taking it for a ride. We rarely even think of it as a natural resource that needs to be conserved‚ a part of the natural wealth that needs to be preserved.
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meat waste and dairy products are likely to putrefy‚ and in outdoor bins can attract vermin. Green waste should be added in moderation to avoid heating the bin. Small-scale or home systems Such systems usually use kitchen and garden waste‚ using "earthworms and other microorganisms to digest organic wastes‚ such as kitchen scraps". This includes: • All fruits and vegetables (including citrus and other "high acid" foods) • Vegetable and fruit peels and ends • Coffee grounds and filters • Tea bags
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Carolina Mammal Kidney Dissection Guide TM Capsule Cortex Medulla Pyramid Papilla Column Hilus Renal artery Renal vein Major calyx Minor calyx Pyramid Arcuate artery Arcuate vein Interlobar artery Interlobar vein Ureter Pelvis Sinus C80137 CarolinaTM Mammal Kidney Dissection Guide Overview The Carolina Mammal Kidney Dissection Guide is a general set of instructions for dissecting mammal kidneys. With each type of kidney‚ there will be differences in the size of the structures and kidney
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circulation. The materials used in this lab were a preserved clam‚ a dissection pan‚ bent tip probe‚ scalpel‚ specimen bag‚ pins‚ gloves‚ tools‚ paper towels‚ goggles‚ ruler‚ lab coat‚ etc. In Miss Sido`s lab prep she went over the lab packet‚ taught us how to set up for dissection by getting only the certain tools needed‚ having paper towels in the pan‚ and she taught us how to properly clean up after dissection. She performed a lab dissection demo‚ where she showed us how to properly dissect the clam and
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Arthropod phylum. In fact‚ some scientists believe that if we were to identify all species in the tropical rain forests the ranks of Arthropod would swell to over 10 million species! Most people do not normally think of a clam‚ a jellyfish‚ or an earthworm as an animal. Yet all of them belong to the kingdom of animals. The science of classifying organisms is called taxonomy. In order to study living things‚ scientists classify each organism according to its: Kingdom Phylum Class Order Family Genus
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