Submitted by: Submitted by flashedcoder
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Category: Science and Technology
Date Submitted: 08/31/2013 11:25 PM
Table 1: Samples 1–5
Phylum/Division Sample 1: Chrysophyta Sample 2: Annelida Sample 3: Arthropoda Sample 4: Amphibia Sample 5: Aves
Common Feature
Nutrition
How does the organism break down and absorb food? Autotrophic Heterotrophic: Earthworms eat their way through dirt, so they are detritivores. Heterotrophic: Some are vegetarian, some are carnivorous, and some are decomposers. Heterotrophic: These are usually vegetarian as tadpoles and carnivores as adults. Heterotrophic
Circulatory System (Transport)
How does the organism get what it needs to cells (open, closed, diffusion only)? Diffusion only Closed with 5 aortic arches (hearts) Open circulatory system with a heart pumping hemolymph
Closed with 3-chambered heart
Closed with 4-chambered heart
Respiratory System
How does the organism get oxygen and release carbon dioxide? Diffusion only Diffusion through skin
Diffusion through tracheal tubes Diffusion through gills as a tadpole and through lungs and skin (especially) as adults Diffusion through the lungs
Reproductive System
Does the organism use asexual or sexual reproduction (eggs, seeds, spores, placenta, type of fertilization)? Asexual Hermaphrodites: One body has both sexes Sexual: Has special organ called clitellum that moves from the front of the worm to the rear and then falls off, containing the eggs Sexual: Mostly internal fertilization Sexual: Mostly external fertilization; must be in water or very moist area
Sexual: Eggs; internal
Excretory System
How does the organism get rid of wastes and maintain an ionic balance of fluids? Diffusion Nephridia in each segment; solid waste exits through the anus Malpighian tubules Kidneys, intestines, anus Kidneys, intestines, anus
Growth and Development
Does the organism go through metamorphosis, develop in an egg or uterus, or grow from seeds? Start as small cells; grow bigger until division Start out as fertilized eggs, hatch into little worms that continue to grow, and...