In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Question: What is the process by which organisms change in small ways over time? Answer: microevolution
Microevolution is the process by which organisms change in small ways over time.

Question: The distinctive appearance of what tissue is due to polysaccharides called chondroitin sulfates? Answer: cartilage
The distinctive appearance of cartilage tissue is due to polysaccharides called chondroitin sulfates.

Question: What is stacked in layers in "layer cake geology"? Answer: rock stata

Rock stata is stacked in layers in "layer cake geology".