How did the development of the hela cell line affect society? a. it resulted in patient consent being required for tissues to be used in research. b. it led to the production of the most widely studied mortal cell line in the world. c. it prevented the collection of other human cell types for research. d. it caused the contamination and destruction of other immortal cell lines.

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

Select the correct answer.what is the observable characteristic of a person called? o a. genotypephenotypeoc.alleleo d.gene

Several bodily responses are described below. for each response, determine what caused the change in homeostasis. body starts to sweat breathing rate increases amount of saliva produced changes body starts to shiver