#Question id: 9578
#Unit 10. Ecological Principles
#Question id: 11272
#Unit 10. Ecological Principles
Measurement of phytoplankton production, take sample of phytoplankton suspended in three bottles in lake. One bottle as control assumed as initial, second bottle (D) was kept in dark while third bottle (L) was kept in light. After some time productivity measure fallow
A- Difference in dissolved oxygen between light bottle and dark bottle yield NET primary productivity
B- Difference in dissolved oxygen between light bottle and initial bottle yield NET primary productivity
C- Difference in dissolved oxygen between light bottle and initial bottle yield Grass primary productivity
D- Difference in dissolved oxygen between light bottle and dark bottle yield total oxygen produced by photosynthesis
Which above combination of statement are correct?
#Question id: 27030
#Unit 10. Ecological Principles
#Question id: 23172
#Unit 13. Methods in Biology
#Question id: 1079
#Unit 4. Cell Communication and Cell Signaling
Smoking impairs the ciliated cells of the middle portion of the respiratory tract. Many analgesic drugs (painkillers) impair peristalsis (the churning motion of the digestive tract). The result of either of these activities leads to an increased risk of infection in their respective areas. Why?