Describe the function of the pericardial sac around the heart. (2pts)
Describe how the blood vessels (arteries and veins) are adapted to transport blood. State at least three physical adaptations for their function. (3pts)
Why is one side of the heart larger in size. Explain. (1pt)
Explain the two types of blood circulation seen in humans. (2pts)
a. List the 4 chambers of the heart and b. list the valves found in the heart also. (4pts)
Answers: 3
Biology, 22.06.2019 11:00, elpeke102p73fz3
Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations
Answers: 2
Biology, 22.06.2019 13:30, nstacie40
Color blindedness is a sex-linked trait. if we could see the pedigree chart for several more generations of the family illustrated here, we would expect a) more males to be color blind. eliminate b) more females to be color blind. c) no females to ever be color blind. d) an equal number of males and females that are color blind.
Answers: 2
Describe the function of the pericardial sac around the heart. (2pts)
Describe how the blood vess...
Mathematics, 25.07.2019 06:00