Answer:
1. cell walls tend to be more rigid than the cell membrane
Explanation:
Cell walls are called 'walls' for a reason (:
Easy answer: its too hot.
The deepest man made hole is Kola Superdeep Borehole. That was a Russian experiment to see how deep you could drill into earths crust, reaching down 12,262 meters. At that depth the temperature reached 180 °C. The scientists estimated that a 15,000 meters depth the temperature would reach 300 °C, and at that temperature the drill would cease to work and the project was stopped.
The endoplasmic reticulum helps in the production of proteins and lipids.
"Pituitary Gland" secretes the Growth hormone.
[ Remember it is a Gland not an organ,]
Hope this helps!
