When a dense oceanic plate goes underneath a less dense continental plate, the rock will begin to get hot and melt. This molten rock is what gives rise to. A. mountains
B. volcanoes
C. sea floor spreading
D. rift valleys

In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20

What in scientific term why the salty popcorn causes this thirst

What are the pros and cons of transect sampling?