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an injury to lining of blood vessel exposes connective tissue, causing platelets to adhere. The damaged cells release thromboplastin. Together, with plateleys and damaged cells and callcium, etc., prothrombin will be activated into thrombin, which will activate the plasma protein, fibrinogen, to fibrin, which is th meshwork that forms the clot
with fibrin activated and calcium and other blood factors, a fibriin clot will form and trap the cells
•Mechanism for Stomata opening
- –each is surrounded by 2 guard
- cells with chloroplasts which produce ATP via
•1- __-Water evaporates from cells near __.
– Since they are dryer (__ is lower)than their neighboring cells, water moves from the moist cells into the dry cells.
- Transpirational pull
- water potential
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