Answer:
a gene is the different forms of a trait a segment of DNA that is the basic unit of heredity
Explanation:
Answer:D
Explanation:
Respiration is the process of taking in oxygen and release of Carbondioxide in the lungs(breathing),the absorption of the oxygen in the alveolar, into the blood stream for distribution to tissues , the combustion of the metabolites(glucose,amino acids, and fatty acids and glycerol)with the inhaled oxygen to give energy as ATPS and water vapour.
Answer:
they use to live
Explanation:
As they breath out carbon dioxide the plants take in the carbon dioxide and make air with it. Animals also use air to do their day to day things like eat.
Answer:
adding chlorine, checking the water.
Explanation:
Because this increases the quality of the water while the rest improve either quantity, or ease of access.
