C. The nuclear envelope contains the nucleus and forms a barrier between it and the cytoplasm
The correct option is A.
A lot of biochemical reactions occur per minute inside living cells and these reactions have to be sustained because the survival of living cells depend on them. For these reactions to proceed, energy is needed. This energy is usually obtained from the food which a living organism consumed. The mitochondria, which is the power house of the cell, is the one which convert the energy to the ATP form, which is usable by the cells.
Answer:
Antibiotic resistance is the ability of bacteria or other microbes to resist the effects of an antibiotic. Antibiotic resistance occurs when bacteria change in some way that reduces or eliminates the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections.
Answer:
A). prey on other bacteria.
Explanation:
Bdellovibrio represents a genus of gram negative bacteria. These bacteria are vibrio shaped and highly motile. They are heterotrophic organisms that cannot prepare their food and depend on others.
These bacteria show parasitic nature as they parasitize other bacteria and kill them to get nutrition. Thus, the correct answer is option (A).
