this process, in which the presence of an ion leads to further release of that same ion into the cell is an example of:

What type of specimens where you able to see under each of the microscopes in the microscope activity

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

Which pair of sentences is describing the same velocity? a. a car is parked. a car is moving in circles. b. a bus drives 40 miles per hour north. a truck drives 50 miles per hour north. c. a boy walks east at 6 kilometers per hour. a girl walks west at the same speed as the boy. d. valerie rides her bike south at 8 kilometers per hour. owen jogs south at 8 kilometers per hour.