input: OPTIONS:
- acid and base
- biotic and abiotic
- epidermis and dermis
- xylem and phloem Now, answer this question: Q: What are the two different types of vascular tissues called? A:
A:
output: xylem and phloem

Q: Both androgen secretion and spermatogenesis occur continuously starting with what? A:

OPTIONS:
- birth
- mutation
- walking
- puberty

Answer: puberty

Problem: OPTIONS:
- rust
- copper alloy
- iron oxide
- copper oxide
Q: Q: What substance is created when a copper turns from reddish brown to greenish brown? A:
Answer: copper oxide

Problem:OPTIONS:
- dioxide
- carbon
- sulphur
- ozone

Q: What is the term for the gas in smog that can damage plants? A:
****
A: ozone

Q: How do prokaryotes reproduce? A:
OPTIONS:
- inorganically
- sexually
- unusually
- asexually
asexually

Q: The negatively charged electrons are attracted to the positively charged what? A:
OPTIONS:
- axon
- atom
- ion
- nucleus

Answer:
nucleus