A moon phase that looks like a half-circle from Earth * A. 1 point
B. new moon
C. quarter moon
D. full moon
E. exomoon

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation

The cluster of developing cells from conception until birth is called an

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?