A. Explain why the number of tan snails and black snails changed. b. How does this event support the idea of evolution by natural selection?
C. Give one reason why tan snails might disappear within a few years.
d. Using the data in the table, prepare a bar graph that shows information on snail
population before and after the volcanic eruption. Include all labels.

What is used to keep track of the gamates and possible offsprings combination

Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine

In 2015, about ten percent of total u.s. energy consumption was from renewable energy sources. renewable energy plays an important role in reducing greenhouse gas emissions. when renewable energy sources are used, the demand for fossil fuels is reduced. sanjay and his family want to cut back on their use of non-renewable resources at home. they are thinking of an alternate way to heat their home without adding more greenhouse gases or pollutants to the environment. which renewable resource would not fit into their plan? a) solar power b) burning wood c) constructing a wind turbine eliminate d) generating hydroelectric power