What is one difference between dna and rna? a. only dna contains the base adenine. b. only rna contains the base guanine. c. only rna contains the sugar fructose. d. only dna contains the sugar deoxyribose?

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

Explain why ecosystem diversity results in species diversity in a healthy biosphere

What is the primary function of the nervous system?