The flexibility inherent in a segmented body plan was clearly important to crustacean evolution, but why are crustaceans so much more diverse than annelids, another segmented taxon?

Q: Discuss the body plans exhibited by the crustaceans that are also shared by all other arthropods.…

A: The word arthropod is a combination of two Greek words - arthro meaning jointed and pod meaning…

Q: Give the literal meaning of the name Gymnophiona. What animals are included in this amphibian order,…

A: Gymnophiona is an order species which comes under class amphibian, which in turn comes under phylum…

Q: Name one invertebrate animal with both exo and endo,-skeleton

A:

Q: the value of Chondrichthyes - Cartilaginous Fishes

A: Chondrichthyes is a class that includes cartilaginous fishes. These fishes have skeletons primarily…

Q: CHARACTER/ANIMAL PHARYNGEAL VERTEBRAE PAIRED APPENDAGES MUSCULAR FINS WITH MUSCULAR LIMBS SWIM…

A: Cladogram used to construct to show similarities and differences between organism . It use to…

Q: What characteristics is the ancestor of tetrapods thought to have had? Choose all that apply

A: Tetrapods  Tetrapods are the group of animals that have four legs. It the major group of animal and…

Q: What levels of organization do chordates have that sponges do not?

A: The level of organization from simplest to the complex are Cell, tissue, organ, organ system.

Q: What is a key characteristic of all arthropods?a. Six legsb. Pseudocoelomc. Mandiblesd. Exoskeleton

A: Arthropods are the largest phylum among animal kingdom. They are non chordates and do not contain…

Q: How different are the swimming strategies in osteichthyes and in chondrichthyes? Why do sharks need…

A: The Chondrichthyes include rays, sharks, and skates that have a cartilaginous skeleton with calcium…

Q: compare cnidarians to sponges and to the clade containing flatworms, mollusks, and annelids. What…

A: RH Whittaker gave the five-kingdom classification of living organisms. He used several factors to…

Q: How does the foot of a bivalve differ from the foot of a cephalopod, or the foot of a snail? In what…

A: Bivalve Foot - The bivalve foot is one singular mass. It do not have a flat creeping sole but is…

Q: What structures did amphibians develop to support the weight of the body against the force of…

A: Amphibians, as their name indicates, are class of organisms that  have adaptations suited for both…

Q: From which diapsid subgroup have crocodilians descended? What other major fossil and living…

A: An organism is any individual entity that embodies the properties of life. Organisms are classified…

Q: How similar are the morphological and physiological traits of the members of pancrustacea? Why are…

A: Comparative anatomy is the study of the "similarities and dissimilarities" between various objects.…

Q: What features of a hydrostatic skeleton do Sponges, Cnidarians, Nematodes, Annelids, and Arthropods…

A: The most frequent skeletal system for movement and support in animals is the hydrostatic skeleton.…

Q: Do octopus and squids have exoskeleton?

A: An exoskeleton is an outer cover present on the body of an animal. In most of the animals it is made…

Q: Explain how a cladistic classification for the vertebrates produces important regroupings of the…

A: Introduction  Taxonomy is the branch of science which deals with the classification of animals in…

Q: For centuries, scientists classified sponges as plants, but now they are classified as animals. What…

A: Animals are classified based on their characteristics. Taxonomy is the science that is used to…

Q: How does the lifestyle of a gastropod differ from that of a cephalopod?Identify adaptations that…

A: To describe: The way in which the lifestyle of a gastropod differs from that of a cephalopod.…

Q: Animals that have true tissues, bilateral symmetry, segmented bodies, and are protostomes are known…

A: Tissue is a collection of cells with similar structures that work together as a unit. Epithelial,…

Q: Why are external skeletons important for soft-bodied invertebrates?

A: Skeleton is the robust structure exhibited in the organism which act as scaffold for the body.…

Q: What character does the term rhizarian indicate about the forams and actinopods?

A: Rhizaria are an ill-defined, species-rich supergroup consists mostly of unicellular eukaryotes.…

Q: Echinodermata is the first phylum you have examined whose members possess true endoskeletons. What…

A: Echinodermata are called after their spiny skin, and so this phylum has over 7,000 recognized living…

Q: Compare and contrast anatomy and ecological role of a Bivalve and a Cephalopod. Based on their…

A: Bivalve is a class of marine and freshwater molluscs. They have a flat body and include clams,…

Q: An arthropod body is described as having three key features: A segmented body, an exoskeleton, and…

A: Arthropods are found in all parts of the world in a wide variety of environments. This phylum…

Q: Cnidarians are...

A: Ans. Cnidarians are diploblastic.  Option 2nd diploblastic is correct

Q: this is dugesia  Compare the body plan of Dugesia and cnidarians. Aside from differences in…

A: Cnidarian and Platyhelminthes (Dugesia) are invertebrate animals that do not contain notochord and…

Q: Compare the body plan of Dugesia and cnidarians. Aside from differences in symmetry, what other…

A: Thank you for the question  Answer :Dugesia belong to phylum Platyhelminths.  The features seen in…

Q: Question: All members of Chordata have true vertebrae.   True or False?

A: Animalia is the most advanced and complex kingdom among all the other kingdoms. The body has tissue…

Q: What is a body structure that is found in Bony fish but not in Cartilaginous fish?   Teeth Gills…

A: The animal kingdom is diverse constructing millions of species. Fishes are one group of vertebrates…

Q: Why is bilateral symmetry of adaptive value for actively motile animals?

A: Bilateral symmetry is a pattern of symmetry where the opposite sides are normal or one side is…

Q: In an ecdysozoan would cease if ecdysis did not occur.

A: Arthropoda (insects, chelicerata, crustaceans, and myriapods), Nematoda, and several smaller phyla…

Q: examine the morphology and anatomy of starfish.  Notice the ossicles and plates that constitute…

A:

Q: Animal Diversity Second mouth Symmetrical animals Asymmetrical animals Spiny skin Radial symmetry…

A: These are term related to animal diversity.

Q: How can the endoskeleton of echinoderms be characterized in comparison to analogous structures…

A:

Q: Mouth Second Asymmetrical Animals Symmetrical Animals Spiny Skin Radial Symmetry Bilateral Symmetry…

A: * Assymetrical animal is porifera * Symmetrical animals are eumetazoans *radial symmetry exhibited…

Q: Brachiopods superficially resemble bivalve molluscs, such as clams. How would you explain the…

A: brachiopods are marine invertebrates that comprises the lamp shells. They are places in phylum…

Q: How useful is the study of the nature of body cavity and coelom in theclassification of animals?

A: Animal classification is a system of grouping animals by their similar characteristics. It is also…

Q: Cnidarians and ctenophores are considered diploblastic, but why might some biologists label them…

A: The process of embryonic development is characterized by the formation of the primary layers called…

Q: Animal Diversity Second mouth Asymmetrical animals Symmetrical animals Spiny skin Radial symmetry…

A:

Q: There are two types of chordates the invertebrates and the vertebrates. How do invertebrate…

A: The scientific classification of animals begin in the late 18th century. At that time , animals for…

Q: research introduction about Chondrichthyes - Cartilaginous fishes

A: Phylum Pisces bifurcated into two  1.osteichthyes --- bony fishes  2.Chondrichthyes -- cartilagious…

Q: Leeches are members of the phylum _ in the clade of bilaterally symmetric animals called _…

A: Leeches are ectoparasites and do not possess any parapodia or setae. They have a peculiar connective…

Q: What type of body symmetry does this creature have?

A: The correct Answer is Option D . Bilateral Symmetry .

Q: CHARACTER/ANIMAL PHARYNGEAL VERTEBRAE PAIRED SWIM APPENDAGES MUSCULAR SUCKER- FINS WITH MUSCULAR…

A:

Q: Why do you believe squid received the name cephalopod, which means head-foot? What distinguishes the…

A: Hi dear, here's your answer. The name cephalopod, in Greek, means that "head foot." This name was…

Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.