The right answer is vitamin C—citric acid.
Vitamin C or ascorbic acid protects against cellular aging, is essential for the immune defenses and increases the assimilation of iron of plant origin.
Citrate is a biological molecule found in all living organisms because it is involved in the Krebs cycle (or citrate cycle) to produce energy.
Answer:
There are two main factors that make ocean water more or less dense than about 1027 kg/m3: the temperature of the water and the salinity of the water. Ocean water gets more dense as temperature goes down. So, the colder the water, the more dense it is. Increasing salinity also increases the density of sea water.
Answer:
The chromosomes move to a narrow central zone of the cell
Explanation:
Prophase: nuclear and cell membrane start to disappear
Metaphase: The chromosomes line up in the equator
Anaphase: Spindle fibres pull the chromosomes towards the poles
Telophase: Nuclear and cell membrane start to form
I hope it useful
Answer:
Water
Explanation:
Its water because water has many forms and all those forms are being converted into other forms of water during the cycle
External respiration (correct answer) involves the exchange of oxygen and carbon dioxide within the environment.
The exchange of wastes through the skin is just called excretion by sweating.
There is no exchange of nutrients that occur in the lungs but rather absorption of nutrients is the function of the gastrointestinal tract.
The exchange of oxygen and carbon dioxide within the cell is called cellular respiration and involves carrying oxygen from the blood to the cell then the cell uses it as the final electron acceptor in the electron transport chain. The metabolic wastes of the cell, primarily carbon dioxide, goes now to the bloodstream to be exchanged for oxygen in the lungs.
