Q: What type of bonds are the attractive forces between the positively charged nuclei of the bonded atoms and one or more pairs of electrons that are located between the atoms? A:

OPTIONS:
- active
- gravitational
- reactive
- covalent

Answer: covalent

Problem: OPTIONS:
- temperate climate
- droughts climate
- tropical climate
- subarctic climate
Q: Q: Exemplified by canada and alaska, what kind of climate has cool, short summers and long, cold winters, little precipitation, and abundant conifers? A:
Answer: subarctic climate

Problem:OPTIONS:
- biome
- community
- habitat
- biosphere

Q: What includes all living things within all their environments, including everywhere life exists, from the upper atmosphere, to the top of the soil, to ocean bottoms? A:
****
A: biosphere

Q: Untreated botulism is typically fatal because muscles required for breathing fail to contract when the release of what chemical is blocked? A:
OPTIONS:
- carbon dioxide
- monoxide
- hydrogen
- acetylcholine
acetylcholine

Q: All the blood in the human body is filtered about 60 times a day by what? A:
OPTIONS:
- lungs
- heart
- liver
- kidneys

Answer: kidneys

input with options: Q: What are structures that have a common function and suggest common ancestry? A:
OPTIONS:
- reversible structures
- analogous structures
- monogamous structures
- homologous structures
output:
homologous structures