A substance has a volume of 20 ml and a density of 2.5 g/ml. What is it mass? A:0.125g ,B:8g, c:22.5g or D:50g

Patient has just received an organ transplant which treatment would be most effective in preventing the patient’s body from

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.