Phylum

Which animal group is most closely related to chordates?

Which animal group is most closely related to chordates?

Summary

  1. What invertebrate phylum is most closely related to vertebrates?
  2. What are arthropods most closely related to?
  3. Which group of invertebrates is the most diverse group in the kingdom Animalia group of answer choices?
  4. What characteristic defines arthropods and is found in annelids arthropods and chordates?
  5. Which phylum of invertebrates is the closest related to chordates?
  6. How are echinoderms and chordates related?
  7. Are arthropods and annelids closely related?
  8. Which animals belong to the phylum Arthropoda?
  9. What are the main groups of arthropods?
  10. Do chordates have appendages?
  11. Why is Arthropoda the largest phylum?
  12. Which group of animals has the greatest known species diversity?
  13. Are chordates bilateral symmetry?
  14. What are the characteristics of phylum Chordata?
  15. Which of the following groups include only arthropods?

What invertebrate phylum is most closely related to vertebrates?

Tunicates are part of the phylum Urochordata, closely related to the phylum Chordata that includes all vertebrates. Because of these close ties, many scientists are working hard to learn about their biochemistry, their developmental biology, and their genetic relationship to other invertebrate and vertebrate animals.

What are arthropods most closely related to?

For many years arthropods and annelids were believed to be closely related, with arthropods likely evolving from annelid ancestors, or vice versa.

Which group of invertebrates is the most diverse group in the kingdom Animalia group of answer choices?

The Ecdysozoans are the most diverse group of animals, containing the nematode worms and the arthropods. These organisms have an external covering called a cuticle that protects their soft internal organs from water loss and the outside environment.

What characteristic defines arthropods and is found in annelids arthropods and chordates?

A distinguishing characteristic shared by annelids and arthropods is their body segmentation. At some point in development, segmented animals possess a body plan with repeating segments of identical or similar structures. Later in development, some segments may form more specialized structures.

Which phylum of invertebrates is the closest related to chordates?

Echinodermata is considered the closest related phylum to Chordata. Like chordates, echinoderms have a type of embryonic development in which the opening for the anus is formed prior to the opening that becomes the mouth.

How are echinoderms and chordates related?

Echinoderms and chordates are two closely-related groups of animals. They show bilateral symmetry at any stage of their life cycle. Therefore, they belong to the clade Bilataria. Also, both are deuterostomes whose blastopore develops into the anus.

Are arthropods and annelids closely related?

Annelids and arthropods have long been considered each other's closest relatives, as evidenced by similarities in their segmented body plans.

Which animals belong to the phylum Arthropoda?

Crabs, lobsters, shrimp, barnacles and many other animals belong to the phylum arthropods. In fact, 75% of all animals belong to the phylum arthropoda (which also includes spiders and insects). All arthropods have a hard exoskeleton made of chiton, a type of protein.

What are the main groups of arthropods?

The phylum Arthropoda is commonly divided into four subphyla of extant forms: Chelicerata (arachnids), Crustacea (crustaceans), Hexapoda (insects and springtails), and Myriapoda (millipedes and centipedes).

Do chordates have appendages?

All other chordates are craniates: they have a brain and a skull. There are two subphyla: the Agnatha, which lack jaws and paired appendages, and the Gnathostomata, which have jaws and usually have paired appendages as well.

Why is Arthropoda the largest phylum?

Why is arthropoda the largest phylum? Phylum arthropoda includes 80% species of animals. These species evolved certain adaptive features over the years to survive the changing climatic conditions and form the largest phylum in the animal kingdom.

Which group of animals has the greatest known species diversity?

Insects are the largest and most diverse group of organisms on Earth. There are approximately 30 orders with the number of described species reaching nearly 1 million. However, some scientists believe the actual number may exceed 20 million!

Are chordates bilateral symmetry?

Chordates are also bilaterally symmetric, have a coelom, possess a circulatory system, and exhibit metameric segmentation. ... The Chordata and Ambulacraria together form the superphylum Deuterostomia.

What are the characteristics of phylum Chordata?

Animals in the phylum Chordata share four key features: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail.

Which of the following groups include only arthropods?

Scorpion, spider, prawn.

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