| A | B |
|---|
| burrow | a hole or tunnel dug by an animal; to dig a tunnel; search |
| colleague | fellow worker |
| component | an ingredient; serving as one of the parts of something |
| dilution | the thinning down of a mixture by the addition of water or other liquid |
| effective | producing the desired result; making a striking impression |
| factor | an element or ingredient |
| habitat | region where a plant or animal normally lives |
| immunity | freedom from something unpleasant; resistance to a particular disease |
| lethal | deadly; fatal |
| multiple | having many parts; a number that is a product of some specific number and another number |
| particular | distinct; specific; an item or fact |
| preliminary | preparatory; leading up to the main action |
| prompt | to urge; quick to act; on time |
| proportion | a part or share of teh whole; to arrange the parts into harmony or balance |
| propose | to put forth for consideration; plan; present as a toast; to nominate for office; offer or marriage |
| resistance | the act of withstanding or opposing |
| rodent | a family of mammals that includes mice, rats, squirrels, etc. |
| temperament | disposition |
| toxin | poison |
| venom | the poison secreted by some snakes, spiders, insects, etc. |
