Numbers are expressed in scientific notation using exponents. true or false

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

The hematodinium parasite becomes less of a problem for the blue crab when the crab is very young. fishing is thriving in the region. the crab moves to less salty water. a significant percentage of the population is impacted.

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above