Problem:OPTIONS:
- silt
- sediment
- truncation
- erosion

Q: Glaciers modify the landscape by what? A:
****
A: erosion

Q: Caves form over time when what causes rocks like limestone to dissolve? A:
OPTIONS:
- weather
- acid
- air
- water
water

Q: What controls what moves inside and outside the cell? A:
OPTIONS:
- nucleus
- golgi apparatus
- mitochondria
- the plasma membrane

Answer: the plasma membrane

Question: Q: Chains of small molecules called nucleotides make up what? A:
OPTIONS:
- chromosomes
- peptides
- proteins
- nucleic acids
Answer: nucleic acids

input with options: Q: What is heard when sound waves bounce back from a surface that they can't pass through? A:
OPTIONS:
- radio
- ultrasound
- loop
- echo
output: echo

Problem: OPTIONS:
- novel species
- exploratory species
- brave species
- pioneer species
Q: Q: What are species that are first to colonize a disturbed area called? A:
Answer:
pioneer species