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Unit 4/5
Term | Definition |
---|---|
Asexual Reproduction | One organism produces offspring without fertilization |
Sexual Reproduction | Two organisms produces offspring with fertilization |
Vegetative Propagation | Asexual:Uniform offspring grows from a part of the parent plant |
Fission | Asexual:Cell divides to form two genetically identical cells |
Budding | Asexual:A new organism grows on the body of it's parent |
Regeneration | Asexual:Occurs when an offspring grows from a piece of it's parent |
Conifers | Sexual: Produces cones |
Pollination | Sexual: Contain male and female parts and requires outside help from insects, animals, wind, or water |
Fertilization | Sexual: Union of sperm and egg, gestation time varies among species |
Asexual Advantages | One parent, rapid population growth, all organisms can reproduce, shorter time, less energy, and ensures survival of species |
Asexual Disadvantages | No genetic variation, overpopulation, diversity is limited, and any changes in the environment can wipe out a species |
Sexual Advantages | Unique offspring, variation of genes, and ensures the survival of species |
Sexual Disadvantages | Must have two organisms, fertilization must occur, and takes longer to reproduce |
Absolute Age | Exact age |
Relative Age | Age compared to a different object's age |
How do Sedimentary Rocks form | The sediment that forms sedimentary rocks is deposited in flat layers |
How do Igneous Rocks form | When magma or lava hardens |
How do Metamorphic rocks form | Sedimentary or igneous rock changes due to extreme pressure and/or heat |