#Question id: 1539
#Unit 4. Cell Communication and Cell Signaling
Regulatory T cell (TREG) have identified by the presence of
#Question id: 8922
#Unit 9. Diversity of Life Forms
#Question id: 5296
#Unit 8. Inheritance Biology
A transformation experiment is performed with a donor strain that is resistant to four drugs: A, B, C, and D. The recipient is sensitive to all four drugs. The treated recipient cell population is divided up and plated on media containing various combinations of the drugs. The table below shows the results. What is the probable order of the three tightly linked genes?
#Question id: 20413
#Unit 3. Fundamental Processes
#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