If abreathing mask is used to keep smaller particles out of the lungs, then abreathing mask can prevent what kind of particle from entering the lung? Answer choices: - light - harmful - rabies - A virus - x-ray - deadly - ion - small
small

(Question)
If alight bulb requires a power plant to produce light, then what does a light bulb require to produce light? Answer choices: - sunlight - adding heat - darkness - motivation - sun's heat - fear - an electron lens - Power plant
(Answer)
Power plant

Ques: If dNA is found in cells, then where does DNA reside? Answer choices: - membrane - cells - embryos - atom - complex - nucleotide - ligt - retina
Ans: cells

(Q).
If heating an egg results in chemical changes, then heating an egg results in chemical _.? Answer choices: - Energy. - voltage - synergy - burns - chains - heat - changes - energy
(A).
changes

Ques:If jellyfish have a nervous system, then what has a nervous system? Answer choices: - Nerve tonic - Jellyfish - Air - fur seals - Cardiovascular system - animals - chickens - elephants

Ans:Jellyfish

If avian species are less likely to end up extinct if they produce offspring, then avian species are less likely to end up extinct if they what? Answer choices: - single-celled organisms - important habitats - abandon habitats - stop reproducing - animals with backbones - produce offspring - population movement - destroy offspring
produce offspring