Please provide more information in your question
Answer:
The <u>nuclear envelope</u> is composed of two concentric lipid bilayer membranes separated by an intermembrane space of about 20-40 nm. The outer membrane is continuous in many places with the rough endoplasmic reticulum. Like the rough ER the outer membrane of the nuclear envelope is dotted with ribosomes.
Answer: Organisms with favourable variations gradually produce new species
Explanation:
Based on the environmental pressures, some of the with favourable variations to the environment survive and gradually adapt to the environmental change there by leading to a new breed of the species
Answer = c
step by step explanation
