Question

All worms are:
A. Triploblastic
B. Segmented
C. Endoparasites
D. life style

Answer 1

Hint: Intestinal worms may increase the danger of certain health issues within the body. Some intestinal worms may make it difficult for the body to absorb protein or cause a loss of blood and iron, which could lead to anemia. Intestinal worms can also affect an individual's ability to pass food through the intestines.

Complete answer:
Triploblastic is a condition describing an animal having a body composed of three formative cell layers, the ectoderm, mesoderm, and endoderm. All higher and intermediate animals (i.e., from flatworms to humans) develop from a triploblastic embryo. So, the right answer is option A.
All "higher" and "intermediate" animals, from flatworms to humans, are triploblastic and belong to the Bilateria subregnum. Simpler animals qualified as diploblastic, like cnidaria (which includes jellyfish, corals and hydra), possess two germ layers.
They all have long, narrow bodies without legs. All worms even have tissues, organs, and organ systems. Worms have bilaterality. Unlike sponges or cnidarians, worms have distinct head and tail ends.
The animals have three primary formative cell layers viz., the ectoderm, mesoderm and endoderm from which different tissues and organs of the animal's body differentiate out. Samples of triploblastic animals include platyhelminthes, annelids, arthropods, molluscs, echinoderms, and chordates. Additional information: Furthermore, triploblastic organisms are further weakened into parts like acoelomates, coelomates and pseudocoelomates.

Note:
An animal possessing 3 major tissue layers. These are the mesoderm, endoderm and the ectoderm. Triploblastic organism from the three key germ layers – endoderm, ectoderm, and mesoderm – throughout the gastrulation of the blastula.