I believe the answer is oxygen only
Pure breeding means the same as selective breeding since you take two animals and combine their traits for certain reasons
Answer:
B. Carbohydrates provide energy for living things.
Explanation:
Answer:
Provide a closed environment.
Clean the hatch chamber with chemical.
Explanation:
Biosecurity is a measure which is taken in order to protect or prevent the population of existing species from infestation of harmful organisms and chemical substances. The hatchery should provide a closed environment in order to prevent the entry of harmful organism. Cleaning of the chamber where eggs were hatched with chemicals in order reduce the infestation of microorganism.
