Only the last one provides an actual evidence of having a common ancestor. The rest can be a result of living in a similar environments that makes life easier. For example, many species live next to water, as water provides more fertile ground for plants, and they might have similar behaviors (searching for water) but they might not be closely related.
so the correct answer is D.
Answer: A. a bear Hibernating
Explanation: B has nothing to do with seasons. C is talking about yearly change. D has nothing to do with what season it is. Whereas for A, bears hibernate seasonally
Triglycerides vary with respect to the number of - C atoms and double bonds in the tails.
Triglycerides are esters derived from glycerol and three fatty acids. These are the main constituents of body fat in humans and other animals, as well as vegetable fat. There are two main types of triglycerides - saturated and unsaturated.