Answer:
The main functions of mitosis are growth and repair. Some cells once fully formed do not undergo cell division, such as nerve cells and muscle cells.
Explanation:
Since you can never re-grow or repair these types of cells once they are mature, you must take care of the ones you have.
Answer:
It is called pen and it is located at the dorsal side
Explanation:
Squid belongs to the class Cephalopoda, subclass Coleoidea which is characterized by internal shell (unlike subclass Nautiloidea in which shell is located externally).
The shell of the squid (the pen) in very reduced and small, formed from chitin and located at the dorsal side. The pen provides attachment for muscles and it gives the squid stiffness.
Most likely, this internal shell evolved from the external shell, because it is believed the ancestral of the organisms from the Coleoidea was probably nautiloid-like.
The labelled diagram is attached below & the correct sequence is shown below:
4. Sun Heat - The heat of sun causes water to evaporate.
2. Evaporation- vaporization of water
6. Condensation - The conversion of water vapours from gaseous to liquid state.
1. Precipitation - water falls from clouds in the form of rain, snow or sleet.
5. Run off - The surface water is a major part of the collected water, flows from top of any surface (form rain, snow etc)
3. Collection of water - The rain water is collected.
An Adding sand on top of the leaves to model burial in sediments.
Explanation:
I know because I'm different breed