What factor does not contribute to the limited vegetation in the tundra? a) limited carbon dioxide supply b) nutrient poor soil c) frozen soil d) minimal rainfall

Explain the purpose of a molecular clock and the properties that a section of protein must have to be used in this way.

Cholera is a bacterial infection of the small intestine. vaccination provides protection against cholera. the cholera vaccine is made up of weakend form of the bacteria that causes cholera. the vaccine will stimulate blank production and elicit an immune response. if the infection occurs again, the bodynwill produce an even greater attack on thre bacteria because of blank.

How has technology been used to address issues related to sewage? o a. sewage treatment plants use bacteria to clean water and solid waste before releasing it into the environment. o b. sewage treatment plants heat water to kill bacteria. o c. sewage treatment plants use landfills to filter and clean water and solid waste before releasing the water into the environment. o d. sewage treatment plants cool water to kill bacteria.