Problem: OPTIONS:
- solutions
- compounds
- animals
- elements
Q: Q: Mendeleev organized what basic units into rows and columns? A:
Answer: elements

Problem:OPTIONS:
- exothermic
- hydrostatic
- autotrophic
- endothermic

Q: What kind of reactions absorb energy from their surroundings as they occur? A:
****
A: endothermic

Q: The heart is a muscular organ that pumps blood through which system? A:
OPTIONS:
- endocrine
- pulmonary
- nervous
- circulatory
circulatory

Q: Energy transfer between what kinds of levels is generally rather inefficient? A:
OPTIONS:
- producer
- secondary
- apex
- trophic

Answer: trophic

Question: Q: What type of scientists study the effects people have on their environment? A:
OPTIONS:
- biological scientists
- ecological scientists
- integrated scientists
- environmental scientists
Answer: environmental scientists

input: OPTIONS:
- Maxillary sinus
- Sphenoid sinus
- Frontal sinus
- superior sagittal sinus Now, answer this question: Q: What is the largest of the sinuses? A:
A:
output:
superior sagittal sinus