Choose all of the characteristics of a T cell. i. Progeny include memory cells Is directly responsible for attacking foreign cells or virus-infected cells
ii. Forms clones upon stimulation
iii. Produces antibodies that are released to fluids
iv. Bears a cell-surface receptor capable of recognizing a specific antigen
v. Accounts for most of the lymphocytes in the circulation
vi. Progeny are plasma cells
vii. Progeny include regulatory, helper, and cytotoxic cells
viii. Originates in bone marrow from stem cells called hemocytoblasts and matures in thymus

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes