In the alignment there are dashes (-) in some positions. Which of the following explains the use of the dashes? [Relating to BLAST Interpretation] Choices:
A. the dashes show where there is an obvious similarity and adding a base is not needed.
B. the dashes show multiple amino acids could be part of the sequence
C. the dashes are shown where there is no alignment.
D. the sequence with dashes includes the sequence of unknown amino acids?

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

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.

What is the term for a water wave that is created by an underwater earthquake?