hydrochloric acid makes ph to acidic for stomach so bile neutralises it as it is an alkaline for enzymes to work
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reasons why aerobic respiration is used
1) build up larger molecules from smaller ones 2) muscles to contract 3)keep body temp steady in mammals
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what is anaerobic respiration?
incomplete breakdown of glucose.
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what is an oxygen debt?
repay oxygen that didn't get to your muscles in time
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mitosis
splitting to form identical offspring
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meiosis
half no. of chromosones
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are men ** or xy
xy
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what conclusions did mendel come to?
characteristics in plants are determined by heredity units
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what is gradual replacement?
teeth, bones etc are replaced by minerals forming a rock like substance shaped like orginal hard part.fossills stay distinct in rock and eventually is dug up
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