nhóm nguy cơ vi sinh vật, phương pháp phòng tránh phát tán vi sinh vật và cách xử lý khi bị phơi nhiễm với vi sinh vật trong phòng thí nghiệm

Is snow a type of precipitation? explain why or why not.

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

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen