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Reproduction
Reproduction– the way living organisms are able to produce new living organisms like itself.
Sexual reproduction– reproduction that takes two multicellular parents. Sexual
reproduction involves male & female parents in multicellular animals or male & female
reproductive organs in multicellular plants
-- Both plants & animals reproduce sexually
Asexual reproduction– reproduction that takes one unicellular parent. Asexual
reproduction involves one celled organisms that split or divide during mitosis or cell
division. Examples are paramecium, amoeba, bacteria, euglena
–Mitosis or cell division
The female sex cell is the: egg
The male sex cell is the: sperm
ANIMALS
In multicellular organisms:
female sex cell: egg
male sex cell: sperm
fertilized egg
PLANTS
female sex cell: egg
male sex cell: pollen
fertilized egg: seed
Fertilized egg: the union or joining of a sperm & egg
Embryo: The new living organism developing inside of a fertilized egg
heredity– the passage of traits or characteristics from parent to offspring (or one generation
to another generation)
examples in humans: eye color, blood type, hair color & texture, physical appearance, height,
body size, skin color, certain diseases, baldness
50% of your traits come from the female sex cell (egg)
50% of your traits come from the male sex cell (sperm)
Whether you inherited a X or Y chromosome from your father determines your sex