69. All reptiles and amphibians have a three-chambered heart. The one shown in the picture, is actually printed on a shower curtain, so it doesn't really have a heart at all. Three-chambered hearts assures that blood will always pass to the lungs and back to the heart. It's said to not be as efficient as a four-chambered heart, but works fine for the environment in which reptiles and amphibians live in.
Sunday, June 6, 2010
Item 69 (Frog)
69. All reptiles and amphibians have a three-chambered heart. The one shown in the picture, is actually printed on a shower curtain, so it doesn't really have a heart at all. Three-chambered hearts assures that blood will always pass to the lungs and back to the heart. It's said to not be as efficient as a four-chambered heart, but works fine for the environment in which reptiles and amphibians live in.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment