Nutrition and Vitamins 1. What is a nutrient? 2. What is the difference between micronutrients and macro? 3. According to their functions how can nutrients are classified? 4. What are vitamins? What are the major vitamins needed by humans? 5. What is the difference between fat-soluble and water-soluble vitamins? Why […]

What key revision to our understanding has made (at least some of) the icy moons of the outer planets in our Solar System promising targets for searches for life and evidence of past life? A) We have discovered evidence of organic molecules on the surface of some of the moons. […]

1) Any organism that causes disease is classified as a(n) pathogen. mechanical vector. antigen. biological vector. 2) Immunity that develops over time due to exposure to various antigens is termed adaptive immunity. innate immunity. coordinated immunity learned immunity. 3) The core of the immune system is made up of intact […]

The equilibrium potential for an ion species may be defined asthat potential required to keep the ions at a given concentrationand may be calculated from the nernst equation for that ionspecies. The concentration of K+ inside a squid axon is 400 mM andthe external concentration is 10 mM. The equilibrium […]