Apologia Marine Essay

1. Definitions a. Metabolism- The process by whichc a living organism takes energy from its surroundings and uses it to sustain itself, develop and grow. b. Photosynthesis-the process by which an organism uses the energy from the sun to produce its own food c. Autotrophs- organisms that are able to produce their own food d. Heterotrophs- organisms that cannot make their own food and must obtain it from other organisms e. respiration — the process by which food is converted into usable energy for life functions f. homeostasis — the tendency of living organisms to control or regulate changes in their internal environment g. diffusion — the movement of molecules from an area of high concentration to an area of low concentration h. osmosis — the diffusion of water across a selectively permeable membrane i. osmoconformer — and organisms that allows its internal concentration of salts to change in order to match the external concentration of salts in the surrounding water j. Osmo regulator — an organism that regulates its internal concentration of salts k. Poikilotherm- an organism whose body temperature changes with its surrounding environment l. ectotherm — an organism whose body temperature is controlled by its surrounding environment m. homeotherm- an animal that maintains a controlled internal body temperature using its own heating and cooling of mechanisms n. Endotherm- an animal whose internal body temperature is a result of internal sources of heat o. a sexual reproduction — reproduction accomplished by a single organism p. sexual reproduction — reproduction that involves the union of gametes from two organisms: a male and a female q. binomial nomenclature — identifying an organism by a genus and species name 2. carbohydrates, proteins, lipids, and nucleic acids 3. oxygen levels would be lower at night than during the day 4. no, they must feed on extra material made by photos synthesizing plants 5. no, both groups containing organisms like that 6. population 7. water will travel through osmosis to the outside 8. the body fluids would change. There would be more concentration of  dissolved substances in the body 9. no. They could have warm blood if their environment is warm 10. yes 11. no 12. the plant from the cutting 13. the cell with 24 chromosomes 14. the cell with 12 chromosomes 15. yes