Adult members of this subphylum are sessile and possess only one of the chordate characteristics. Which one?

Q: What feature is symplesiomorphic for all taxa?

A: Symplesiomorphic:            An ancestral trait shared by two or more groups is designated as…

Q: Review the extent of segmentation in Polychaetes, Leeches, Siboglinids, Echicrans, and Sipunculans.

A: Hi! Thank you for the questions. As you have posted multiple questions, I will be answering the…

Q: What are the anatomical advantages for simple animals in the chordata phylum?

A: There are four anatomical advantages for simple animals is that, when taken together, set chordates…

Q: Flatworms have no coelom. Recent gene sequencing shows that their closest relatives are the rotifers…

A: Coelom is the fully functional body cavity that is lined by mesoderm. Within the coelomic cavity,…

Q: What character unites members of clade Gnathifera?

A: There exist different types of organisms that are placed according to the characteristic features…

Q: How can the features of the arthropod exoskeleton explain the terrestrial adaptation of some species…

A: The phylum Arthropoda is characterized by the presence of jointed legs, a segmented body, and an…

Q: Is reproduction in sponges sexual or asexual? What is the evolutionary advantage of the occurrence…

A: Budding, gemmation, or fragmentation (regeneration) are examples of asexual reproduction in sponges,…

Q: Differentiate the three different body plans in sponges: Characteristics Asconoid Syconoid Leuconoid…

A: Spongiology is a branch of zoology which deals with the study of sponges. Sponges are multicellular…

Q: Why is the madreporite of sea cucumbers internal instead of external like other echinoderms?

A: The madreporite  is made up of calcium carbonate and is covered in pores, looks grooved like some…

Q: What are Trochozoans ? Explain what do they play ?

A: The Trochozoa are a proposed Lophotrochozoa clade that is sister of Polyzoa. The trochozoans clade…

Q: Explain the difference between mictic and amictic eggs of rotifers. What is the adaptive value of…

A: The members of the phylum Rotifera have can range in the length from 40 micrometers to 3…

Q: identify the type of trichome present in: -Phoenix sylvestris -Cassia obtusifolia -Bauhinia anguina

A: Trichomes is derived from the Greek word trichoma which means "hair". Trichomes are specialized…

Q: Explain how Craniata are paedomorphic for some traits of Chordata larvae.

A: Hemichordates have a number of features that are common between them, chordates and echinoderms.…

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: Does the lack of a digestive system in tapeworms indicate that it is a primitive, ancestral form of…

A: Introduction: Platyhelminthes are organisms having a single opening to the digestive cavity. They…

Q: What are the ecological roles of hexapods and myriapods? Cite some examples of ecologically…

A: Introduction :- Ecology is the study of interaction among the living organisms and with their…

Q: Which of the following animals is most closely related to hemichordates? Cow Earthworm Fish Crab Sea…

A: Hemichordates is the phylum that consist are worm-like invertebrates usually marine in nature.…

Q: Which of the following characteristics are found within the pseudocoelomate phyla…

A: Pseudocoelomates generally consist of a fluid-filled body cavity. They lack a true coelom, i.e they…

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: Make a concept map about Subphylum Myriapoda and its classes (Chilopoda, Diplopoda, Pauropoda,…

A: Insects, spiders, crustaceans, and their relatives make up this huge phylum of invertebrate…

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: Describe the two invertebrate subphylum of the phylum Chordataand their relationship to the…

A: Classification is a method of grouping organisms into categories or groups based on similarities and…

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: In terms of efficient reproductive strategy, which is better between articulate and inarticulate…

A: With exception of three particular taxa brachiopods are typically gonochoristic creatures with…

Q: Which of the following is not a characteristic of the phylum Chordata

A: The phylum Chordata is a group of animals that includes vertebrates (animals with backbones) as well…

Q: Differentiate between Phylum Porifera and Clade Eumetazoa. -Poriferans are only haploid during…

A: The objective of the question is to differentiate between Phylum Porifera and Clade Eumetazoa, two…

Q: what is the main morphological difference between the sengis and shrews

A: Sengis are  distantly related to elephants and are in a family of their own  Macroscelidea.

Q: Sponges are also found in freshwater, though not as numerous as the marine varieties. One example of…

A: Spongilla is a kind in sponges of freshwater. They have a resting stage known as gemmules to survive…

Q: Discuss the evolutionary history of the subphylum vertebrata

A: Vertebrata is considered as the subphylum of cordatas. Thry contain: a notochord, a dorsal hollow…

Q: Describe the structural differences between the forewing and hindwing of Which wing is most…

A: INTRODUCTION-Jumping insects belonging to the grasshopper group (suborder Caelifera) are found in a…

Q: To what subphylum does this animal belong? Chordata Vertebrata Agnatha Gnathostomata Elasmobranchii

A: Animals are divided into taxonomic categories on the basis of evolutionary ties and similar traits.…

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: Describe the differences in the coelomic systems between Oligochaetes and Polychaetes. How do the…

A: differences in the coelomic systems between Oligochaetes and Polychaetes Polychaetesare a subclass…

Q: Why is Ammocoete Larvae important in the story of evolution? What does its anatomy shed light on?

A: The term "ammocoete" describes a primordial jawless vertebrate larva found submerged in mud and eats…

Q: Within the subphylum Urochordata is a group called the appendicularians (or larvaceans; class…

A: The function of the body's distinct components and systems is referred to as physiology. It is…

Q: What are traits of species that would be in phylum arthropoda

A: The term arthropod means jointed legs and describes the great number of invertebrates included in…

Q: Name and distinguish the taxonomic classes in phylum Cnidaria.

A: Phylum Cnidaria, also called Coelenterata, includes approximately 9,000 species.

Marine Evolution

Marine habitat is less explored, and hence, its biological diversity is far less known. The marine habitats are not constant due to their shifting nature, while the terrestrial habitats are more stable. Marine biology is the science that deals with the study of diverse marine species, their interactions, and behavioral characteristics.