Please help i am giving away brainilest 1. A main function of the leaf petiole is

A. none of these

B. to keep the leaf away from the secondary meristem of the stem.

C. to produce pollen.

D. to extend the leaf blade away from the stem so the blade can collect sufficient sunlight.

no dam links

Scientific method and data analysisa biology student wanted to determine if there is a relationship between resting heart rate and bodyheight. she gathered information from 12 classmates and constructed the table below.resting heart rate (beats per minute)student height (cm)155. 156156165180180190194195

!if we removed the wolf, snake, and hawk from this food web, what best explains the impact it would have? a) the number of producers would increase. b)the number of decomposers would increase. c)the number of primary consumers would increase. d)the numbers of primary consumers would decrease.

Why is it important that fibrin is insoluble in water?