Answer:
A is the correct answer
Explanation:
the existed about 3.8to 4.0 billion years ago
Answer:
Glycocalyx
Explanation:
Glycocalyx is carbohydrate rich (glycoprotein + glycolipid) coating that is found in outer surface of cell membrane of many prokaryotic and eukaryotic cells specially bacteria.
Glycoprotein=Carbohydrate + Protein
Glycolipids= Carbohydrate + Lipids
Glycocalyx provied a barrier between cell and its surrounding, adhesion and provide protection in bacteria. In eukaryotes it can be used to identify cells.
Parkinson's disease
<span>Parkinson's disease results from deterioration of brain's nerve cells</span>
Answer:
they start to run out of places to stay cool and then will eventually run out of food to eat then they will die. hope this helps