Answer:
The 3rd Option
Explanation:
Simple for this question, C: an investigation because it uses only observations.
1.) Nose
2.) Mouth
3.) Larynx
4.) Lung
5.) Right Bronchus
6.) Diaphragm
7.) Pharynx
8.) Trachea
9.) Left Bronchus
10.) Bronchiole
11.) Alveoli
12.) Throat
Communication skills, Respect, and loyalty
Answer:
Explanation:Mucus membrane
Natural antibiotic(s)
Immune system
White blood cells
Leukocytes
Lymphatic system
Antigen
Phagocyte
Lymphocyte
T-cells
B-cells
Antibody/antibodies
Fever
Communicable disease
Infection
Pathogen
Skin ( as a protective barrier)
vaccine/vaccination
Stomach
First line of defense
Second line of defense
Third line of defense
