Birds such as blue-gray gnatcatchers nest in the canopy of oak trees. They receive shelter from oak trees, while the trees goes unharmed. Thus, these populations have a commensal relationship.
How would the sudden decrease in the size of the blue-gray gnatcatcher population affect the size of the oak tree population?
A. The oak tree population would increase.
B. The oak tree population would decrease.
C. The oak tree population would go extinct.
D. The oak tree population would stay the same.

Use the gizmo to find the concentration of the mystery ch3cooh. use the titrant and indicator shown below perform the titration. what is the titrant volume? titrant analyte indicator titrant volume analyte concentration naoh ch3cooh phenophthalein select one: a. 20.0 ml b. 27.0 ml c. 30.0 ml d. 24.0 ml

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring