The photo shows a liger. Its father is a male lion, and its mother is a female tiger. Which two facts show that lions and tigers are closely related but separate species?
A. Male lions and female tigers can produce offspring.
B. Male ligers cannot produce offspring with female ligers.
C. Male and female tigers cannot grow as large as ligers.
D. Female ligers can produce offspring with male lions or tigers.

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes