The nurse must<span> determine before discontinuing airborne </span>precautions if the sputum is free of acid – fast bacteria. Sputum is a mixture of saliva and mucus coughed up by the patient from his respiratory tract. This is typically a result of infection or other diseases.
Answer:
B. After fertilization.
Explanation:
It's the process where the sperm and egg fuses to form a zygote.
No. Biotechnology is a refinement of breeding techniques that have been used to improve plants for thousands of years. The 20th century, in particular, saw the development and application of many new techniques to transfer genes between related and even unrelated species for crop improvement. Biotechnology is the latest in a long line of increasingly powerful tools for enhancing crops.