input: OPTIONS:
- thyroxine
- melanin
- estrogen
- testosterone Now, answer this question: Q: The testes produce sperm and secrete what? A:
A:
output: testosterone

Q: What system includes lymph organs, lymph vessels, lymph, and lymph nodes? A:

OPTIONS:
- nervous
- immature
- digestion
- immune

Answer: immune

Problem: OPTIONS:
- mammals
- skeletates
- invertebrates
- vertebrates
Q: Q: What is the name for animals that have a backbone? A:
Answer: vertebrates

Problem:OPTIONS:
- mixed
- liquid
- solid
- solid

Q: What property are alkali metals at room temperature? A:
****
A: solid

Q: What guards the opening between the right atrium and the right ventricle? A:
OPTIONS:
- superior vena cava
- brachiocephalic trunk
- aorta
- tricuspid valve
tricuspid valve

Q: What is the plane that divides the body or an organ vertically into right and left sides? A:
OPTIONS:
- median plane
- parasagittal plane
- anatomical plane
- sagittal plane

Answer:
sagittal plane