Answer:
a contracting mass of gas which represents an early stage in the formation of a star, before nucleosynthesis has begun.
Explanation:
Answer:
squamous epithelium consists of a single layer of flat cells. It is found in lungs,heart and blood vessels.It allows the movement of materials across it.
stratified epithelium has many layer of flat cells.It is present in lining of oesophagus and mouth and also over the skin
The answer will be that it is not true and that the percentage of calories that are eaten are actually used. <span />
the best answer u got here is C. Passive transportdoes not require the cell to use energy, while active transport does. An example of passive transport is a carrier protein involed in facilitated difussion.
this the best answer u got here and i reccomend this one plz mark brainliest
