Q: Most carcinogens cause cancer by producing mutations in DNA, and mutations are changes in the DNA sequence. Given these facts, most carcinogens cause cancer by producing changes in what among the following options: - harmful substances - Chlorophyll - the skin - the eyes - organs - layers of fat - DNA sequence - alleles
A: DNA sequence

Q: Fungi have special structures for penetrating a host, and fungi include yeasts, molds, and fleshy fungi. Given these facts, what have special structures for penetrating a host among the following options: - amoeba - bats - mammals - sound waves - gamma rays - ferns - mold - maples
A: mold

Q: Carbon cycles quickly between organisms and the atmosphere, and carbon is an essential component of all living organisms. Given these facts, what is essential to all living organisms among the following options: - garbage - Energy. - hydration - gifts - food and shelter - Chemical energy - poison - The atmosphere
A: The atmosphere

Q: Vesicle transport requires energy, so it is also a form of active transport, and food provides energy and health. Given these facts, what does vesicle transport require among the following options: - bus - Joules - railroad - vehicles - heat - charge - oxygen - food
A: food