Answer: The nucleus of a cell is like your parents. Your parents control most of things that take place inside your house. The nucleus can be represented as the brain because the brain tells the body what to do just like what the nucleus does for the cell. Without the brain you could not live.
Answer: yes.
Explanation: Through those bonds they grow familiar with their birds' unique moods and emotions, from stress and loneliness to joy and excitement. That familiarity leaves no doubt that pet birds can and do feel emotions.
Answer:
A. Red blood cells and muscle cells.
Explanation:
Cellular respiration which takes place in the presence of the oxygen is known as aerobic respiration and which takes place in the absence of oxygen is known as anaerobic respiration.
In anaerobic respiration, the cells produce a very low amount of ATP compared to the aerobic respiration but still in the human body to survive, the cells have this conserved process.
The cells in humans in which the process takes place are the red blood cells which do not possess the nucleus, the mitochondria and the other organelles so they perform anaerobic respiration. The muscle cells, when deprived of oxygen, undergo anaerobic respiration which produces a very low amount of ATP molecules and lactic acid also called fermentation.
Thus, option-A is correct.
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