*Question*
If enphysema is often caused by exposure to tobacco smoke, then emphysema is often cause by exposure to:? Answer choices: - high temperature - fog - Greenhouse gasses - rays or beams - hot steam - tobacco smoke - Pollution - incendiary people
**Answer**
tobacco smoke

*Question*
If organs of excretion remove waste from the blood, then what removes waste from the blood? Answer choices: - Veins and arteries. - alleles - Leptospirosis - the spinal cord - Special disposal - an area swollen with pus - oxygen - organs of excretion
**Answer**
organs of excretion

*Question*
If plant plankton needs sunlight to make food, then what does plant plankton need for food? Answer choices: - Sunlight - chemicals - glucose - warmth - Bodily water - photons - The Sun - Energy
**Answer**
Sunlight

*Question*
If flowers produce spores that develop into haploid entities, then flower spores eventually develop into an entity that is:? Answer choices: - sperm - fertile - mammalian - ferns - fungi - development - haploid - plants
**Answer**
haploid