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15 Cards in this Set
- Front
- Back
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how does development result from nature or nurture?
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-heredity plays a big role in intelligence and personality
-environment by bro's and sis's |
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longitudal study
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same participsnts studied for a long per of time, [attrition-participants drop out]
-expensive |
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cross-sectional study
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participants -dff ages- studied over time span only once. quick, less money, not all ppl have the same experiences
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after sperm ejaculates and travels through fallopian tubes what does it do?
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penetrate ovum (releases sticky substance to get the egg)then heads toward genetic material in the egg
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zygote
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(0-2 weeks) the union of the sperm and ovum form a one-cell structure
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mitosis
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where the zygote reproduces itself
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embryo
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covers the period of time between 2-9 weeks
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fetus
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the baby from about 9 weeks old until they're born
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chromosomes
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segments of genetic material, humans have 46
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genes
DNA |
units of hereditary material
chamical name for genetic material |
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amniotic sac
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fetus suspended in a sac that cushions it against sudden movements or blows- protects
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placenta
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organ that develops uterus.transmits nourishment to fetus, makes hormones, and filters out bad substances
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teratogens
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causes bith defects
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must be what in mom's diet to develope a healthy brain & when is the baby most affected by things
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FAT and 2d trimester
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ultrasound
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sound waves ont fetus uterus placenta to make a sonogram
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