Problem: OPTIONS:
- 1
- 4
- 6
- 2
Q: Q: Two water molecules contain 4 hydrogen atoms and how many oxygen atoms? A:
Answer: 2

Problem:OPTIONS:
- neuroreceptors
- nociceptors
- fibroblasts
- mechanoreceptors

Q: What do some animals use to get a feel for their environment? A:
****
A: mechanoreceptors

Q: Blood enters the heart in what valve? A:
OPTIONS:
- tricuspid
- aortic
- mitral
- atria
atria

Q: Gas particles are constantly colliding with each other and the walls of a container, and these collisions are elastic, so there is no net loss of what? A:
OPTIONS:
- velocity
- heat
- temperature
- energy

Answer: energy

Question: Q: What kind of charges do protons give the nucleus? A:
OPTIONS:
- negative
- dynamic
- neutral
- positive
Answer: positive

input: OPTIONS:
- autotrophic
- exothermic
- hydrostatic
- endothermic Now, answer this question: Q: Anabolic reactions require energy, so they are considered what type of reaction? A:
A:
output:
endothermic