The trunks of Palm trees do not get thicker as they age; rather, they simply grow taller. Some Palms have trunks that are as skinny as pencils. Fossil Palm trees date back 100 million years to the Jurassic Era. Muslims regard the Date Palm as the tree of life, as its roots can be traced back more than 5,000 years.
In this article. Tapeworms are flat segmented worms that live in the intestines of some animals. Animals can become infected with these parasites when grazing in pastures or drinking contaminated water. Eating undercooked meat from infected animals is the main cause of tapeworm infection in people.
Segmented worms are classified within the following taxonomic hierarchy: Animals Invertebrates. Segmented worms are divided into the following taxonomic groups: 1  Polychates-The polychaetes include about 12,000 species that are characterized by having multiple hairs on each segment.2  They have nuchal organs on their neck that function as chemosensory organs.egmented worms are classified within the following taxonomic hierarchy: Animals Invertebrates. Segmented worms are divided into the following taxonomic groups: 1  Polychates-The polychaetes include about 12,000 species that are characterized by having multiple hairs on each segment.