Question

question 3 (1 point) when you exercise, your breathing and heart rate increase. which characteristic of life does this demonstrate? homeostasis blank 1: homeostasis question 4 (1 point) which fact best explains why crystals are not considered alive? a they require energy to maintain homeostasis b they grow by accumulating material from their environment c they evolve over time d they contain atoms

Explanation:

For Question 3, when exercising, the increase in breathing and heart - rate to maintain a stable internal state shows the characteristic of homeostasis. For Question 4, crystals are not alive because they do not require energy to maintain homeostasis, which is a key characteristic of living things.

Answer:

Question 3: Homeostasis
Question 4: They require energy to maintain homeostasis (Option a)