Q: What kind of charge do electrons have? A:

OPTIONS:
- effective
- unusual
- positive
- negative

Answer: negative

Problem: OPTIONS:
- lipids
- ketones
- aldehydes
- esters
Q: Q: Carboxylic acids can form what with alcohols? A:
Answer: esters

Problem:OPTIONS:
- Molecule
- cells
- acids
- proteins

Q: Ribosomes are cellular substructures where what are synthesized? A:
****
A: proteins

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

Q: The fetus is connected to what by a tube called the umbilical cord? A:
OPTIONS:
- Stomach
- Intestines
- Fallopian tube
- placenta

Answer: placenta

input with options: Q: What two-word term refers to the number of different species in the community? A:
OPTIONS:
- bacteria richness
- group-richness
- face-richness
- species richness
output:
species richness