Im not enitrely sure but i think the answer is C from what i am reading.
Answer:
Snowball sampling
Explanation:
Snowball sampling may be defined as a type of non probability sampling technique. In this sampling the existing study recruits the future study and sample grows like rolling.
Dr. Chandler has prepared the report of the people abducted by UFOs and asked to share the details of the other people as well. Here, the present study depends on the future study as she asks the existing people to refer the more people.
Thus, the answer is snowball sampling.
Exoskeleton and Endoskeleton
Multicellular organisms e.g. man meet their needs through use of specialized systems that they have in their bodies. Examples of such include:
1. cardiovascular system composed of heart, veins and arteries which facilitate transport of nutrients to all parts of the body .
2. Skeletal system composed of bones, joints, ligaments and cartilage whose function is support and protection of the body. <span>
3. Digestive system composed of mouth, esophagus, stomach , small and large intestines whose function is breakdown of food and absorption of nutrients.</span>
