#Question id: 10691
#Unit 10. Ecological Principles
Following some attributes of biological control agent of parasite
A) General adaptability to the environment.
B) High searching capacity for hosts.
C) K selected strategy
D) Low dispersal ability.
E) Minimal time lag effects in responding to changes in host numbers.
Following above attribute is not ideal for that biological agent?
#Question id: 11292
#Unit 10. Ecological Principles
In an pond ecosystem the _____ is always greater than the _____ .
(a) number of primary producers . . . number of secondary consumers
(b) biomass of secondary consumers . . . biomass of primary consumer
(c) assimilation efficiency of primary consumers . . . assimilation efficiency of secondary consumers
(d) biomass of primary producers . . . biomass of primary consumers
#Question id: 3832
#Unit 3. Fundamental Processes
You briefly expose bacteria undergoing DNA replication to radioactively labeled nucleotides. When you centrifuge the DNA isolated from the bacteria, the DNA separates into two classes. One class of labeled DNA includes very large molecules (thousands or even millions of nucleotides long), and the other includes short stretches of DNA (several hundred to a few thousand nucleotides in length). Which two classes of DNA do these different samples represent?
#Question id: 10560
#Unit 6. System Physiology – Plant
If a tiny gas bubble forms in a column of water under tension, the gas bubble may expand indefinitely, with the result that the tension in the liquid phase collapses, it can have a devastating effect on water transport through the xylem a phenomenon known as
#Question id: 23030
#Unit 12. Applied Biology