*Question*
If water-damaged carpets have a negative impact on the respiratory system, then what has a negative impact on the respiratory system? Answer choices: - harmful substances - water-damaged carpets - a pathogens - lungs - density - oxygen - Something that causes allergies - some viruses
**Answer**
water-damaged carpets

*Question*
If bacteria only have one cell and no tissue, then what only have one cell and no tissue? Answer choices: - ferns - Most plants - mice - bacteria - frogs - Conifers - cell wall - fungi
**Answer**
bacteria

*Question*
If snails reproduce sexually, then how do snails reproduce? Answer choices: - Asexually - seeds - Sexually - ligt - mechanical - Eggs - Pollination - movement
**Answer**
Sexually

*Question*
If aflashlight requires a source of electricity to produce energy, then aflashlight needs electricity to produce what? Answer choices: - stay warm - movement - waves - an object - Decibels - energy - improve - warmth
**Answer**
energy