The gastrointestinal tube is about thirty foot, from mouth to the anus.
The gastrointestinal
tube <span>consists of the oral cavity, pharynx, esophagus,
stomach, small intestine and large intestine. </span>
The function of the gastrointestinal tube is to breakdown the foods into nutrients, and eliminate waste products.
No it is not. For example humans have 46 chromosomes and some dog breeds have 78.
Answer:
C
Explanation:
All of the other answers would lead to the oxygen not being stable.
A student wants to prove that amphibians appeared on earth before birds. The student should use the fossil findings as evidence to provide the most reliable information about the periods when amphibians and birds appeared on earth. Fossils would throw light on the internal body structures that bear the closest similarity to either the amphibians or the birds. The radiocarbon dating of the fossils will reveal its age. This can be used to figure out the time of divergence of the two types.
Answer:
Primary succession occurs following an opening of a pristine habitat, for example, a lava flow, an area left from retreated glacier, or abandoned strip mine. In contrast, secondary succession is a response to a disturbance, for example, forest fire, tsunami, flood, or an abandoned field.
Explanation:
