All living organisms have ways of maintaining homeostasis. They have mechanisms for controlling such factors as their internal temperature, water balance, and acidity. Homeostasis is necessary for normal life processes that take place inside cells.
Pythons have jaws that are connected by flexible ligaments so they can stretch around large prey and then swallow it.
Mechanical Weathering occurred. Is not caused by any chemical substance. Differs from Chemical Weathering which changes the composition of the rock itself
Microevolution includes evolution at the population and community level.
The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.