Describe the general and unique characteristics of the different organ systems in representative animals
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1. Most animals obtain their nutrients by the consumption of other organisms.
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2. Animals need to reproduce in order to increase the chance of the perpetuation of their species.
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1. Most animals obtain their nutrients by the consumption of other organisms.
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2. Animals need to reproduce in order to increase the chance of the perpetuation of their species.
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3. A zygote becomes an embryo and later on develops into an organism.
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4. Fragmentation is the process by which living organisms duplicate themselves
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5. Absorption the process of taking in, taking apart and taking up the nutrients from a food source
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6. There are four classes of essential nutrients
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7. Animals need 10 amino acids and can synthesize about half from molecules in their diet
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8. A diet that provides insufficient essential amino acids causes malnutrition called protein deficiency.
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9. Vitamins are organic molecules (contains carbon atoms) required in the diet in small amounts.
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10. Sexual reproduction where two parents are involved and each donates genes to the new offspring who have a mixture of the inherited genes from each parent.
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11. Reproduction is the joining of the egg and sperm to make a zygote from which new offspring will grow (called conception)
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12. Fertilization takes place in two ways?
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13. Minerals are simple inorganic nutrients, usually required in large amounts
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14. Suspension feeders - Many aquatic animals are suspension feeders, which sift small food particles from the water. Examples of these are clams, mussels, whales, etc.
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15. Fluid feeders - suck nutrient-rich fluid from a living host. Example: Mosquito
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16. Interna fertilization is l where eggs are fertilized within the female's body, in her reproductive tract.
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17. Ovoviviparity – the eggs are developed internally and receive nourishment directly from the mother’s blood through placenta rather than from the yolk.
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18. Hermaphroditism occurs in animals in which one individual has both male and female reproductive systems
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19. Live birth – some animals, including most mammals, are born live. These offspring develop and grow inside the body until they are ready to live and breathe on their own.
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20. Digestion - It is the process of breaking food down into soluble molecules – small enough to absorb.
