The correct answer is D.
An increase in Lyme disease does not cause an increase in drowning. There may be a correlation between the two but there is no causation. The likely lurking variable that would cause an increase in Lyme disease would be temperature as people are more likely to venture out into the woods and for walks in long grass with their pets when the weather is nice and could contract the disease from the ticks in the woods and grasslands. The lurking variable that would cause an increase in drowning would be time of the year as once again when the weather is nice people go swimming which can lead to drowning if not careful.
Explanation:
Fossils form in five ways: preservation of original remains, permineralization, molds and casts, replacement, and compression. ... Index fossils help scientists to find the relative age of a rock layer and match it up with other rock layers.
A food chain is very simple while a food web is very complex and consists of a number of food chains. in a food chain, each organism has only one consumer or producer.
Answer:
The most important difference between modern and traditional medicine is the way they observe both human health and the diseases people can fall victim to.
