They are like that because they can't always be faulty and may have at least some spark of truth to this theory also as stated earlier a theory in scientific terms is just an observation so it can't really be turned down hence theory.
Gggggggggggggghh by Ed for G
Every organism has a unique ecosystem within which it lives. This ecosystem is its natural habitat. This is where the basic needs of the organism to survive are met: food, water, shelter from the weather and place to breed its young. All organisms need to adapt to their habitat to be able to survive.
Answer:
The rough ER
Explanation:
Generally the formation of native disulphide bond is essential for the folding and maturation of proteins in the secretory pathways.These bonds are formed in the rough E.R, and also in the intramembrane of the mitochondria.
Basically an oxdative parthways is required for the disulfide bond to form, while a reductive pathway is needed for the formation of isomers for non-native disulphide bonds. These oxidative pathways takes place in the rE.R
Generally the disulphide bonds is usually formed by oxidation of two cysteines bonds. it does not occur in the cytoplasm because it is always in reduced state due to the presence of disulphide reductase. The same explains why it does not occur in the Nuclei
I think its either B. or D.
