You are presented with the question "Emphysema is often cause by exposure to:" and the following answer choices: - high temperature - fog - Greenhouse gasses - rays or beams - hot steam - tobacco smoke - Pollution - incendiary people Now knowing that lung cancer is most often caused by exposure to tobacco smoke and many patients with lung cancer also have emphysema, choose the best answer.
tobacco smoke
You are presented with the question "What can cause debris?" and the following answer choices: - wind - erosion - flooding - screwdriver - spoon - hammer - mines - fork Now knowing that breaking apart rocks can cause debris and hammers start breaking rock, choose the best answer.
hammer
Q: You are presented with the question "what reproduces sexually?" and the following answer choices: - plants - humans - ferns - bacteria - bamboo - legumes - h2o - viruses Now knowing that animals are a kingdom of multicellular eukaryotes and most eukaryotes reproduce sexually, choose the best answer.
A: humans
Question: You are presented with the question "What has special structures for penetrating a host?" and the following answer choices: - blood - water - sunlight - gills - bacteria - Oak - yeasts - parasites Now knowing that fungi have special structures for penetrating a host and fungi include yeasts, molds, and fleshy fungi, choose the best answer.
Answer: yeasts
*Question*
You are presented with the question "What may change the structure of a nucleotide?" and the following answer choices: - oxidation reaction - adding heat - Water - Name - Mutagenic chemicals - permineralization - Air - that material's properties Now knowing that mutations may change the structure of a chromosome or just change a single nucleotide and mutagenic chemicals cause mutations, choose the best answer.
**Answer**
Mutagenic chemicals
Q: You are presented with the question "What leads to immunity and extremely rarely with serious side effects?" and the following answer choices: - hydration - peachleaf willow - homeopathy - veterinarians - vaccination - Allergies - exposure - Chemical energy Now knowing that immunity results from immunization and serious side effects resulting from vaccination are extremely rare, choose the best answer.
A: vaccination