Which type of bond holds the hydrogen atoms and oxygen atom together in a single water molecule? ionic bond nuclear bond organic bond covalent bond

Which of the following is a way that minerals are used? a. industry construction technology d. all of the above

In the practice of science, this type of reasoning is used to develop explanations.

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.