What are the answers to Unit 5: Lesson 2 Biology exam semester A?

The body is protected against harmful flu viruses by

When a doggo starts to pace around in the same line for a hand full of days. what would that mean?

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.