Are ceriantipatherians also known as horny corrals?

Q: which other invertebrate groups are likely to be the closest relatives of mollusks? provide…

A: INTRODUCTION Mollusca Second largest phylum of invertribrates after arthropodes.

Q: Lampreys Sharks Lungfish Amphibians Land vertebrates Tetrapoda Choanata Fingers and toes What is the…

A: The above diagram is called phylogenetic tree. Phylogenetic tree show the evolutionary relationship…

Q: = phylogeny of tetrapods.

A: Synapomorphies is a character or trait that is shared by two or more taxonomic groups and is derived…

Q: Features of Chordates Subphylum Cephalochordata Adult Subphylum Subphylum Urochordata Vertebrata…

A: 1

Q: Compare and contrast the lifestyles of gymnamoebas andentamoebas.

A: Gymnamoebas and entamoebas are the members of amoebozoa group. The members of amoebozoa form a large…

Q: How different arefecundation in osteichthyesand in chondrichthyes?

A: Osteichthyes have endoskeleton made up of bones thus they are called bony fishes. Chondrichthyes…

Q: What is prosimian ? What does it include ?

A: Prosimian can be defined as the group of primitive primates. It includes living and extinct primates…

Q: Difference between class reptiles and class aves?

A: Vertebrates comprise all species of animals within the sub-phylum Vertebrata. It comprises of animal…

Q: What is unique about the madreporite of sea cucumbers (class Holothuroidea)?

A:

Q: What era did Australopithecus afarensis evolve?

A: It is required to identify the era in which Australopithecus afarensis evolve.

Q: Where do Petromyzon and ammocoetes live?

A: Biodiversity is the diversity in living organisms that exists in a particular region or area. It…

Q: What features of Dugesia distinguish its head from its tail?

A: Dugesia are the common flatworms which are found in habitats of african, european, asian and…

Q: When did the Ediacarans live, and what were they like?

A: The Ediacaran organisms lived during the Precambrian supereon approximately 543 to 600 million years…

Q: Difference between pseudocelomates and acoelomates?

A: Coelom is the chief body cavity of animals. It is present inside the body to surround and contain…

Q: From which features do condrichthyes and osteichthyes get these names?

A: These are the classes of Pisces or Fish. The main characteristics of Pisces are- 1. They are found…

Q: How might the ability to crawl on land for short periods haveenhanced the reproductive fitness of…

A: Tiktaalik is an extinct fish and lived approximately 375 million years ago. Even though Tiktaalik is…

Q: Which myriapods occur in moist soil or leaf litter?

A: Myriapoda belongs to the subphylum of the arthropod. The myriapod is terrestrial primarily and…

Q: What phylum is the closest relative of nemertines? Why?

A: Nemertines:  Nemertea, sometimes known as ribbon worms or proboscis worms, is a phylum of organisms.…

Q: What are some adaptive advantages of a pseudocoel compared to the acoelomate condition?

A: In animals the body cavity (coelom) is the area or free space that contains all the organs suspended…

Q: What is the group of the phylum Chordata that first colonized the terrestrial environment? From…

A: Chordates have the following characteristics- Notochord ventral nerve cord pharyngeal gill slits…

Q: Based on the tree below, what is the sister taxon of iguanid? -Spherada rOibamidae LGekota r…

A: A phylogenetic tree is a branching diagram or a tree showing the evolutionary relationships among…

Q: Bivalves lack a mantle (True/False)?

A: The name bivalve refers to the limy shell. They are composed of two pieces or valves, right and left…

Q: illustrates four key characters ofchordates: a notochord; a dorsal, hollow nerve cord; pharyngeal…

A: A chordate is an animal of the phylum Chordata. During some period of their life cycle, chordates…

Q: Compare and contrast the polyp and medusa forms ofcnidarians.

A: The phylum cnidaria contains approximately 9000 species. It includes jellyfishes, hydra, corals, sea…

Q: Does shrimp have a true tail? Or the uropod is just an appendage/part of the abdomen and not…

A: Shrimps are the crustaceans that are the part of arthropods. They have jointed appendages and…

Q: Which structure(s) occur ONLY in chordata? (check all of which are true) A. Notochord B. Dorsal…

A: Chordates are phylum of animal kingdom which is bilaterally symmetrical consisting of organ level of…

Q: Cnidarians are...

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

Q: Are all ‘choanates’ also amniotes?  Are all amniotes in the group Choanata?

A: Introduction: Any animal affiliated to the subfamily Vertebrata, the most common subphylum of the…

Q: In what important ways did invertebrate life change between Ordovician time and Devonian time?

A: Evolution is a process of slow and gradual change over a period of time. There are many different…

Q: Protochordates Protostomes Deuterostomes CHORDATES Tripartite coelom, larva Chordate ancestor |…

A: Both the deuterostomes and protostomes have bilateral symmetry bodies and they are categorized based…

Q: Which terrestrial vertebrate group is extremely rare in deserts?

A: Vertebrates are organisms which possess backbone and notochord. They are large animals which…

Q: Are there aquatic andflying mammals?

A: Animals are the groups of multicellular organisms that constitute the Animal kingdom. They are…

Q: What is the type of nitrogenwaste that mammalseliminate?

A: Nitrogen is a naturally occurring element which is important for reproduction and growth in animals…

Q: Describe the forams and actinopods, and explain why many biologists classify them in the rhizarian…

A: Introduction The Rhizaria are a nebulous supergroup of primarily unicellular eukaryotes with a large…

Q: What kind of tools did Australopithecus robustus have that researchers believe were used to dig into…

A: Introduction: A group of fossil hominins known as the "robust" australopiths lived in East and…

Q: Give examples of prototherians?

A: Mammals can be classified into three subclasses, namely Prototheria, Metatheria and Eutheria. In…

Q: How is the biology of onychophorans related to their distribution?

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

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: What are amphisbaenians? What morphological adaptations do they have to aid in burrowing?

A: Reptiles are the tetrapod organisms and include lizards, snakes, crocodilians, and amphisbaenians.…

Q: Do echinoderms present internal or external fecundation? Is there sex division among individuals?

A: Fecundation, also known as fertilization involves the physical union of the male and female gamete…

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: Give three differences between Petromyzon and ammocoetes?

A: Petromyxon also known as lamprey is a jawless fish. It is a parasite and thus known as parasitic…

Q: What habitat is shared by micrognathozoans and gnathostomulids?

A: Members of two of the bilaterally symmetrical triploblastic phyla have acoelomate bodies. A coelom…

Q: How abundant are archaeons in the oceans?

A: Archaea is a separate domain of unicellular organisms. These organisms do not have nuclei in their…

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

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

Q: What made microraptor a unique feathered dinosaur?

A: In its ecosystem, Microraptor was one of the most abundant non-avialan dinosaurs, and the genus is…

Q: For each of the following pairs of terms, provide one similarity and one difference: a) Planula and…

A:

Q: Which clade does not include humans?(A) synapsids(B) lobe-fins(C) diapsids(D) osteichthyans

A: Clades are the group of organisms that are classified on their shared traits with their common…

Q: Match the benefit to the correct chordate adaptation. allows organisms to walk on land [Choose]…

A: Chordates are organism that possess an vertebral column extending from neck to back region.

Q: Describe the origin of tetrapods and identify some of their keys derived traits

A: Tetrapods are four limbed animals . Animlas such as the amphibians, reptiles and mammals with four…

Classification of Marine Organisms

Classification is a way of categorizing organisms that enables an easy process of identification of such organisms. All living things are classified by grouping them under specific categories. The grouping is done based on the close relativeness of the organisms. The classification tool requires knowledge of characteristics, differences, and similarities between different organisms.