Indicate the color of blood in each of the following cases: 1. Blood entering the lungs (alveoli):
2. Blood leaving the lungs (alveoli):
3. Blood entering the organs (cells):
4. Blood leaving the organs (cells):

Mario performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. what could he have done to increase the validity of his data? reduce the number of plants. remove the 1 hour group. add a 0 hours control. measure the oxygen in liters

Which step is not included in the step approach to calculating the greatest common divisor?

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.