#Question id: 10648
#Unit 10. Ecological Principles
Which statements about K are correct?
I) K varies among populations.
II) K varies in space.
III) K varies in time.
IV) K is constant for any given species.
#Question id: 7171
#Unit 5. Developmental Biology
Following statements are regarding to the early development in sea urchin.
A. most cells of the 16-cell embryo, the large micromeres are autonomously specified.
B. large micromeres inherit maternal determinants that were deposited at the vegetal pole of the egg; these become incorporated into the large micromeres at the fourth cleavage.
C. The conditionally specified large micromeres are now able to produce paracrine and juxtacrine factors that autonomously specify the fates of their neighbors.
D. Large micromeres become skeletogenic mesenchyme cells that will leave the blastula epithelium, enter the blastocoel, migrate to particular positions along the blastocoel wall, and then differentiate into the larval skeleton.
Which of the following statement is false?
#Question id: 3886
#Unit 3. Fundamental Processes
Which one of the following statements about the reverse transcriptases of retroviruses and the RNA replicases of other single-stranded RNA viruses, such as R17 and influenza virus, is correct?
#Question id: 23565
#Unit 8. Inheritance Biology
#Question id: 4764
#Unit 8. Inheritance Biology
Which of the following is the best example of overdominance?