Answer:
Mammals are the warm-blooded vertebrates that can be found in water and land. The dolphins and elephants are the examples of:
Option D. Mammals
Explanation:
Mammals are organisms characterized by the presence of mammary glands, warm-blood, four-chambered heart, and are viviparous. Dolphins and elephants also belong to the category of mammals because they exhibit the characteristics of the phylum Mammalia. Elephants and dolphins are placental mammals, which give birth to young ones.
Reasons for incorrect answers:
A. Amphibians are organisms that can live on land and water. The animals are characterized by cold-blooded, reproduce externally, and skin is limy and smooth. Examples include frogs and salamanders.
B. Arthropods are generally known as insects, which consisted of jointed appendages, segmented bodies, and lack vertebral column. Examples include spiders and cockroaches.
C. Predators are the organisms that attack and kill prey. For example, a tiger is a predator, who kills and feeds on deer and antelope.
Therefore, mammals are the highest classification in kingdom Animalia, which are characterized by mammary glands and the ability to deliver young ones. Elephants and Dolphins are the examples of mammals.
For Further Reference:
https://brainly.com/question/1264312?referrer=searchResults
