Structures like the one shown below can be seen on maple trees at certain times of the year. What is the main function of this structure? protection
competition
pollination
reproduction

What is the volume of the fluid in the graduated cylinder with accuracy and measured to the correct degree of precision? 41.2 ml 42.0 ml 41.23 ml 41.89 ml

2. how is heavy water different from normal water

The diagram below shows the movement of particles. what does this piece of evidence best support? the collision theory the maxwell-boltzmann distribution the effect of pressure on reaction rates the effect of temperature on reaction rates