Populations can be described in terms of their diversity and stability
Indicate whether the statement is true or false.
ANSWER: False - Communities
You might also like to view...
Place the following events of bacterial conjugation in order from first to last.
a - DNA replication b - an enzyme joins F factor DNA ends c - sex pilus shortens d - DNA transfer e - an enzyme cuts F factor DNA A. a, b, c, d, e B. c, e, d, b, a C. e, a, c, d, b D. c, e, a, d, b E. c, e, a, b, d
All of the following events occur during T-dependent activation of a B cell EXCEPT
A. an antigenic fragment held within an MCH Class II molecule of a dendritic cell binds to a specific T cell receptor on a naïve T-helper cell. B. specific cytokines from the T helper cells stimulate maturation and complete activation of the antigen-stimulated B cell. C. antigen within MCH class II molecule is presented by B cell to an activated T helper cell. D. antigen binds to specific B cell receptor molecules. E. antigen bound to the B cell receptor is internalized and transferred to an MHC class II molecule which then moves to the plasma membrane. F. There are no exceptions. All of these events occur during T-depedent activation of B cells.
Which membrane component is most important for allowing large, charged molecules to pass through the membrane?
A. peripheral proteins B. cholesterol C. glycosylated lipids D. transmembrane proteins E. carbohydrate channels
In humans, skin color is controlled by several genes. Thus, skin color is a(n) ____ characteristic
a. dominant b. co-dominant c. epistatic d. pleiotropic e. recessive