input: OPTIONS:
- asymmetrical hydrocarbon
- circular hydrocarbon
- acid hydrocarbon
- cyclic hydrocarbon Now, answer this question: Q: What is a hydrocarbon in which the carbon chain joins to itself in a ring? A:
A:
output: cyclic hydrocarbon

Q: What is the nervous tissue in the brain and in the rest of the nervous system made up of? A:

OPTIONS:
- electrons
- plastic
- ions
- neurons

Answer: neurons

Problem: OPTIONS:
- prokaryotes
- alleles
- nuclei
- vacuoles
Q: Q: What are membrane-bound organelles that can have secretory, excretory, and storage functions? A:
Answer: vacuoles

Problem:OPTIONS:
- habitat
- food chain
- water
- biodiversity

Q: Name an important natural resource in and of itself. A:
****
A: biodiversity

Q: Viruses may damage or kill cells by causing the release of hydrolytic enzymes from where? A:
OPTIONS:
- capillaries
- lipids
- glands
- lysosomes
lysosomes

Q: What do some animals grow to protect themselves in winter? A:
OPTIONS:
- scales
- antennae
- thin skin
- thicker fur

Answer:
thicker fur