List the criteria used to distinguish: (a) animals from other organisms; (b) vertebrates from invertebrates; (c) protostomes from deuterostomes; (d) ectotherms from endotherms.

Q: What characteristics shared by the three deuterostome phyla indicate a monophyletic group of…

A: Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia. Animals…

Q: From an evolutionary perspective, what is the significance of each of the following: (1) placoderms,…

A: The term evolution can be defined as the  change in the features of different species over a long…

Q: Describe four shared derived characters of vertebrates.

A: Vertebrates are members from the subphylum Vertebrata, under the phylum Chordata and under the realm…

Q: The two phyla in the Deuterostomia are a. Arthropoda and Nematoda. b. Brachiopoda and…

A: The Deuterostoma is one of the major groups, a superphylum in the animal kingdom. They belong to…

Q: Give certain primitive characters with all members of kingdom Animalia (adapted from Krempels and…

A: Kingdom Animalia is a taxonomic kingdom that contains all animals. Animals are eukaryotic,…

Q: What are vertibrates and its types?

A: INTRODUCTION: Vertebrates consist of all species of animals which are present in the subphylum…

Q: Describe 4 features that distinguish animals from other kinds of organisms

A: Both plants and animals show high degree of diversity. plants constitute the plant Kingdom.…

Q: describe fossil evidence of the earliest multicellular organisms and the earliest animals?

A: The fossils can be defined as the organisms that lived in the past and are not found today. They are…

Q: Which group of unikonts is structurally and genetically most similar to animals?

A: Unikonta is a supergroup which includes a range of protists along with animals and fungi. It is the…

Q: In what ways do the genera Australopithecus and Homo differ?

A: Genetic evidence showed that about 7-10 million years ago, humans were evolved from chimpanzees. The…

Q: What are the key events in the evolution of the animals?

A: Evolution can be defined as the change in the characteristics of species over several generations…

Q: How did the origin of jaws, lungs, limbs, and the amnion affect thecourse of vertebrate evolution?

A: A vertebrate is an animal that has a backbone and a skeleton. Human beings are part of this…

Q: List four differences between protostomes and deuterostomes.

A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…

Q: What are three shared features of vertebrates (other than those that are shared because they are…

A: BASIC INFORMATION ANIMAL KINGDOM  It is among one of the five kingdom classified by R.H. Whittaker.…

Q: Animal Kingdom Do not possess a backbone Possess a backbone Asymmetric, Bilateral symmetry, Four…

A: *Invertebrates are the animals do not posses backbone. *Vertebrates are the animals that posses…

Q: Write “yes” or “no” to indicate how certain features distinguish each phylum of multicellular…

A: The members of kingdom Animalia are classified into different Phyla, Class, Order, Family, and Genus…

Q: List the criteria that distinguishes animals from other organisms?

A: Animals have several characteristics that set them apart from other living things. animal means a…

Q: Explain super class of vertebrates?

A: Vertebrates are those organisms that have a spinal cord and it is surrounded by bone or cartilage.…

Q: What are the six criteria used to build a complete evolutionary branch of vertebrates?

A: The earliest vertebrates were jaw less fish which lived between 500 and 600 mya. They had a cranium…

Q: What are the general reasons of animals' existence in each era: Cenozoic, Mesozoic, and Paleozoic?

A: Geological time scale: It is a time period used to measure the time or age of the earth by seeing…

Q: Where do invertebrates fit into the evolution history of eukaryotes? Of animals?

A: The study of relationships between distinct groups of species and their evolutionary development is…

Q: What are the reason that you can think of for the arthropods to constitute the largest group of…

A: Arthropods are the invertebrate animals that have a segmented body, paired jointed appendages, and…

Q: How then do sponges, cnidarians,ctenophores, and placozoans function, andwhat are the consequences…

A: The anatomical structures of organisms facilitate them to maintain diversity and ecology. It is…

Q: Make a phylogenetic tree about: Animalia ● Vertebrates ● Invertebrates ● Porifera ● Coelenterata…

A: Synapomorphies can be defined as the types of traits or characters which are present common among…

Q: Name three characteristics that set vertebrates apart from other animals

A: The phylum of vertebrates, which includes Aves, reptiles, amphibians, and mammals, is defined by the…

Q: What would have happened to major vertebrate groups if urinary and reproductive went on to evolved…

A: Urogenital system in vertebrates are organs related to fertility and urination. The reproductive…

Q: Define about Vertebrates: Reptilesand Mammals ?

A: Mammals the most advance organisms and they are called mammals because of the presence of mammary…

Q: Using the following terms, explain what classifications and groups humans fall into, from the most…

A: R. H. Whitaker’s classification system categorizes organisms into five major groups. These groups…

Q: Identify and elaborate or briefly define the special features (or unique organ/s) of each of the…

A: Introduction: Phylum echinoderm includes animals with an endoskeleton of calcareous ossicles. They…

Q: by comparing and contrasting the physical features of a shark, guitar fish and the sting ray, what…

A: We all know that the largest shark is the whale shark (Rhiniodon typus) with length of 13-39 ft and…

Q: What features differentiate animals from their nearest relatives?

A: The evolution of larger animals happened around 2000 million years ago when there was an increase in…

Q: What would happen to major vertebrate groups if urinary and reproductive systems went on to evolve…

A: The skeletal system of vertebrates is crucial for evolutionary biology research. Comparative…

Q: In 1928 Walter Garstang hypothesized that tunicates resemble the ancestral stock of the vertebrates.…

A: Introduction: Tunicate dwells in marine environment and is an invertebrate belonging to subphylum…

Q: vertebrate

A: Introduction  The regenerative conduct of  vertebrate  is surprisingly differentiated: they might be…

Q: Which organs or respiratory adaptations do aquatic and terrestrial arthropods respectively present?

A: Arthropods are the largest animal group that consists of one lakh terrestrial and aquatic species.…

Q: Discuss Concepts What are the relative advantages and disadvantages of radially symmetrical and…

A: Radially symmetrical body : In this type of arrangement the body parts are arranged around the…

Q: Define distinctive features of animal kingdom?

A: Taxonomy is defined as the study of principles, procedures, the rules of scientific classification,…

Q: With evolution and multicellularity in mind, list two characteristics that may have been common to…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: What valuable information can an archaeologist gain from understanding the connections between…

A: Archeology gives us the chance to find about past culture through the investigation of artifacts,…

Q: How do we come to understand the place of vertebrates in a broader tree that includes all animals?

A: The relationship between different organisms based on their evolutionary descent is depicted through…

Q: Explain the characteristics that collectively distinguish animals from other kinds of organisms.

A: In the three-domain system, living things are included. Archaea, bacteria, and eukaryotes make up…

Q: Draw a simplified animal tree of life, indicating therelationships among sponges, cnidarians,…

A: Evolution is defined as the change in the characteristics of a particular species/organism over…

Q: What do fossil tetrapods tell us about the transition from water to land?

A: The animals that have 4 limbs are known as tetrapods and constitute the superclass Tetrapoda which…

Q: Discuss evolution of animal kingdom in detail?

A: Evolution is change in the heritable attributes of natural populaces over progressive ages. These…

Q: Why are Cnidarians diploblast and other animals tripoblast based on evolution?

A: In the early developmental stages, the embryo of the vertebrates organizes itself into a…

Q: Elaborate about the origin and evolution of earlier vertebrates?

A: Vertebrate is considered a subphylum in the kingdom Animalia, which comprises animals with the…

Animal Diversity

Nematodes are commonly known as roundworms. They are free-living, very tiny organisms. They have an elongated and tubular body. These organisms have a nervous system and are mostly act as parasites to both animals and plants.

Platyhelminthes

Platyhelminthes are also known as "flatworms" because as they are dorsoventrally flattened from head to tail. They are invertebrate, soft-bodied, acoelomate, unsegmented and have bilateral symmetry.