#Question id: 23872
#Unit 13. Methods in Biology
#Question id: 32513
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 5028
#Unit 11. Evolution and Behavior
What is the probable sequence in which the following clades of animals originated, from earliest to most recent?
1. tetrapods
2. vertebrates
3. deuterostomes
4. amniotes
5. bilaterians
#Question id: 3334
#Unit 11. Evolution and Behavior
Red hair is a dominant trait in human. In a randomly mating population in Hardy-Weinberg equilibrium approximately 91% of individuals are red- haired. What is the frequency of the recessive allele?
#Question id: 11136
#Unit 7. System Physiology – Animal
Most of the neurons in the human central nervous system are ________.