What molecule makes a trunk to a tree sturdy

Look at the photo of the leaf. which term best describes this leaf?

Me the formula cacl2 represents the compound

Match the following terms and definitions. 1. species that are adapted to live in equilibrium at carrying capacity population density 2. population growth that reaches equilibrium and carrying capacity population 3. death rate mortality 4. birth rate k-selected 5. a group of interacting individuals of the same species within the same geographic area natality 6. the number of organisms living in a particular area logistic growth