#Question id: 8696
#Unit 9. Diversity of Life Forms
There is some evidence that reptiles called cynodonts may have had whisker-like hairs around their mouths. If true, then hair is a shared ________.
#Question id: 12574
#Unit 10. Ecological Principles
#Question id: 662
#Unit 1. Molecules and their Interaction Relevant to Biology
________ received a Nobel Prize in 1964 for determining the structure of vitamin B12. He/she also solved the structure of penicillin in 1947 and developed many techniques used in the study of large proteins.
#Question id: 4974
#Unit 11. Evolution and Behavior
Which of these is the most likely explanation for the modern-day distribution of dicynodont fossils?
#Question id: 11647
#Unit 7. System Physiology – Animal
After menopause, hormone replacement therapy with estrogen-like compounds is effective in preventing the progression of osteoporosis. What is the mechanism of their protective effect?