Given the nautiloid suture pattern what can you infer about their habitat in the past and present?

Q: Characters Sponge Jelly X X Cells with flagella Bilateral symmetry Mesoderm Head develops first Anus…

A: The system of naming and categorising animals is known as taxonomy. The study of links between…

Q: JM. Cavanihac A 0.1 mm

A: Some animals go through metamorphosis to become an adult. A larva is a distinct juvenile form of…

Q: How is a hemocoel different from a true coelom?

A: Organisms with three primary germ layers are called triploblastic while the ones with only two…

Q: Why and how do you think the phenomenon of periodicity in filiarial worms evolved?

A: Microfilaria is the early Juvenile stage in many of the worms belonging to the group nematodes.…

Q: Bilateral symmetry and the anus forming at or near the site of the blastopore characterize…

A: Deuterostomes are those animals in which anus of digestive tract is developed first before the…

Q: describe how three different structures on the bivalves venus and mytilis reflect the respective…

A: Bivalve Venus:- These are native to coastal areas which involves high forces of water currents and…

Q: Choose correct answers | Banded Horntail is a wood-boring Hymenoptera. | Elm Sawfly is the largest…

A: * Banded horn tail is a wood boring hymenoptera  *Horntail also called wood wasp belong to…

Q: Cnidarians development will continue to include the stage. --- Gastrula Zygote Blastula Gamete

A: Cnidarians are also commonly known as coelenterates. They are a phylum under Kingdom Animalia that…

Q: Unifying features include shell, mantle, radula, foot, visceral mass Which classes show a loss of…

A: Mollusca is the  second largest phylum of the invertebrate animals.  Answer;1    The mollusk (or…

Q: Describe the development of the notochord. Include the terms primitive pit, notochordal process,…

A: The Notochord is a cartilaginous skeleton that supports the body in the form of a rod. It is found…

Q: Concerning the occurrence of separated sexes how are the beings of the phylum Annelida classified?

A: All the animal species on Earth are classified into different phyla or groups. The phylum Annelida…

Q: having a post-anal tail and gill slits are traits of all embryos belonging to which phylum?

A: Pharyngeal slits are openings in the pharynx that develop into gill arches in the bony fish and into…

Q: Cnidarians do not have mesoderm. Discuss the costs and benefits of this condition, especially with…

A: Explanation: Cnidarians do not have a mesoderm layer in their bodies. Because of this state, the…

Q: Phylogenetic tree of some deuterostome relationships 2 embryo develops anus first, mouth second 5 6…

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Q: Compare Schizocoelom with enterocoelom based on coelom formation

A: The coelom is the main body cavity found in most animals, it is located in the body to envelop and…

Q: Looking at a variety of animals, what are the advantages torestricting reproduction to a limited…

A: Animal species that successfully mates only during the certain times of the year are known as…

Q: Given that the ligament holding valves together readily decays, how do you expect to find intact…

A: Clams, cockles, mussels, oysters, scallops, and shipworms are the examples of bivalves. Most of them…

Q: Higher organisms have resorted to sexual reproduction in spite of itscomplexity. Why?

A: Sexual reproduction involves the fusion of the male and the female gamete. This fusion allows the…

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.