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Biodiversity 9
Question | Answer |
---|---|
Biodiversity | The difference between the types of organisms in a given area |
Variation | the difference between members of a species |
Species | living things of the same kind that are able to reproduce successfully |
Physical Adaption | when the body of the animal changes in response to a change in its environment or is circumstances within its environment. i.e) a new competitor for food or and new food source or a new predator. |
Behavioural Adaptation | when the behaviour of the animal changes in response to a change in its environment or is circumstances within its environment. i.e) a new competitor for food or and new food source or a new predator. |
Niche | what it eats, what eats it and the animals habitat. |
Symbiosis | the relationship between two species |
both organisms benefit | Mutualism |
one organism benefits, other organism is not harmed | Commensulism |
one organism benefits, other organism is harmed or deprived | Parasitism |
lives in a broad, open area, eats anything. | Generalist, Broad niche |
lives in a small area, only eats one type of food | Specialist, Narrow niche |
4 Types of Asexual reproduction | Binary fission, Budding, Spores, Vegetative Reproduction |
Reproduction without the fusion of sex cells, resulting in identical offspring. | Asexual Reproduction |
Reproduction involving two individuals resulting in genetically different offspring | Sexual Reproduction |
Chromosomes | packages of DNA |
Genes | a segment of DNA |
Genetic Code | the arrangement of the nitrogen bases that form the instructions for reproduction |
Mitosis | a cell division that produces two identical daughter cells from one parent cell |
Meiosis | a cell division that produces four sex cells from one parent cell, each containing half the genetic material of the original cell |
Natural Selection | a process in which the environment "selects" which individuals will survive and reproduce |
Artificial Selection | breeding by humans of plants or animals with desirable traits to produce offspring with those traits |
Biotechnology | the use of living things to make agricultural, industrial, or medicinal products |
In-Vitro Fertilization | fertilization that happens outside the body, usually in a Petri dish |
Artificial Insemination | artificial collection and infection of sperm from a male to a female |
Genetic Engineering | the intentional altering of the DNA of an organism or a population of organisms |
Transgenic Organism | An organism whose genetic characteristics have been altered using the techniques of genetic engineering. |
No longer existing on earth | Extinction |
No longer existing in a given area | Extirpation |
Common causes of Extinction | Climatic Heating and Cooling, Changes in Sea Levels or Currents, Asteroids/Cosmic Radiation, Acid Rain, Disease/Epidemic, Spread of Invasive Species, over hunting. |