Problem: 
Q: Answer the following question given this paragraph:   Vertebrates have a closed circulatory system with a heart. Blood is completely contained within blood vessels that carry the blood throughout the body. The heart is divided into chambers that work together to pump blood. There are between two and four chambers in the vertebrate heart. With more chambers, there is more oxygen in the blood and more vigorous pumping action.   Q: Leaves respond to these environmental stimuli by producing less what?   A:
Answer: chlorophyll
Problem: 
Q: Answer the following question given this paragraph:      Q: What is at the surface of a cell, arranged in similar bilayer?   A:
Answer: phospholipids
Problem: 
Q: Answer the following question given this paragraph:   Seismograms contain a lot of information about an earthquake: its strength, length and distance. Wave height used to determine the magnitude of the earthquake. The seismogram shows the different arrival times of the seismic waves ( Figure below ). The first waves are P-waves since they are the fastest. S-waves come in next and are usually larger than P-waves. The surface waves arrive just after the S-waves. If the earthquake has a shallow focus, the surface waves are the largest ones recorded.   Q: What three parameters do seismographs measure?   A:
Answer: