What is the independent variable? 9. What is the dependent variable? (What will we measure?) Play the video to get the results and answer these questions: 10. What is the DO level of the bottle that was in the light? mg/L 11. What is the DO level of the bottle that was in the dark? mg/L Fill in this chart: Initial Dissolved Oxygen (ppm) (both bottles) Final Dissolved Oxygen in Dark Bottle (no photosynthesis, only respiration) Final Dissolved Oxygen in Light Bottle (both respiration and photosynthesis)

What are the headings of a data table

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.