What is meant by homologous structures? What is meant by serial homology, and how do crustaceans show serial homology?

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: What is the main evolutionary novelty presented by annelids?

A: Lamarck coined the term Annelida for these ringed animals. He established this phylum as the first…

Q: In what ways are the flatworms more complex than the sponges and coelenterates?

A: Vertebrates and invertebrates are the 2 subdivisions into which all animals can be divided.  The key…

Q: What are the features of sponges ( Phylum Porifera) and can they be classified as being apart of the…

A: Sponges are primitive multicellular animals. They are aquatic, generally marine but a few are found…

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 the phylogenetic tree above Sharks are most closely related to which other taxa? 6) Which…

A: Visual representation of the relationship between different organisms, showing the path through…

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

A:

Q: Which arthropod class is the most diversified animal group of the planet? How can this evolutionary…

A: Arthropods have jointed appendages. They are characterized by wings and  3 pairs of legs.

Q: What is the difference and similarities of the following 1. Monotremes vs. birds 2. Eutherians vs…

A: Charles Darwin is the father of Evolution. Evolution means it the change in characteristics of an…

Q: What is meant by serial homology, and how do crustaceans show serial homology?

A: The animal kingdom is roughly separated into two forms by the presence and absence of notochord in…

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: Where do invertebrates fit into the evolutionary history ofeukaryotes? Of animals?

A: Phylogeny is the branch of biology that studies phylogenetic analysis. A phylogenetic analysis is…

Q: Describe how lobsters, crayfish and are similar?

A: Taxonomy is a branch of science involved with classification, particularly of organisms;systematics.…

Q: what phylum in animal kingdom is now reclassified as a family?

A: Biology, a phylum  is a level of classification or taxonomic rank below kingdom and above classes.…

Q: What is thought to be the function of the shell morphology in African pancake tortoise?

A: Introduction African pancake tortoises:- are native to East Africa and are found in Tanzania,…

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: Crustaceans, like annelids, are segmented animals. But crustaceans unlike annelids have tagmata.…

A: Advantage:  The segmentation of annelids is highly adaptive, it allows more efficient movement.…

Q: what synapomorphic characteristic body plan is or has first appeared with the annelids?

A: Synapomorphic characters are those which are shared by two or more taxa.  It is derived from…

Q: How many anatomical characteristics do cetaceans share with mammals and fish?

A: Introduction: Those vertebrates that have a memory gland and give birth to the young ones instead of…

Q: what  is a carapace?

A: Numerous animals have a protective covering on the outside of their bodies. Some of the animals with…

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: hat features of molluscs appear in other invertebrate phyla? Explain

A: The most common properties of mollusks are covers with various vital openings used for breathing and…

Q: Name two structures found in the gut of shark but not of frog ?

A: Digestion in shark takes place by digesting the food into a semi-liquid chyme.

Q: What class of bony fish and what is the scientific name of the Tilapia? Are Tilapia ray-finned or…

A: Tliapia is a common name for many species of fish belonging to the family Cichlidae (order…

Q: Which living animal fish ir mammals are most closely related to cetaceans? Why

A: Mammals are a gathering of vertebrate creatures comprising the class Mammalia, and described by the…

Q: Are Lepidosaurs and Archosaurs are monophylum

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Chordate identity card. How are they characterized according to examples of representing beings,…

A: There is a large diversity of organisms in the living world. For the purpose of classification,…

Q: Is (1) snake and (2) shrimp  internally segmented, externally segmented, or both?

A: Animal bodies are segmented into repetitive portions. Arthropoda, chordata, and annelida, for…

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

A: Onychophora , commonly known as velvet worms. They are terrestrial invertebrates.

Q: Why are “reptiles,” as traditionally defined, a paraphyletic group? How has cladistic taxonomy…

A: Reptiles are the cold-blooded animals that are characterized by dry scaly and impermeable skin. They…

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: What does radial symmetry means? What is the type of symmetry found in chordates? Which are other…

A: The animals are the most abundant living organism that is found in almost every habitat. They have…

Q: QUESTION 1:  What are the four distinguishing features of chordates?

A: Ans- The presence of a post-anal tail, a notochord, a dorsal, hollow nerve cord, and pharyngeal…

Q: Based on anatomy, fossil, embryos, and DNA what are the closest living relatives of cetaceans, fish…

A: Cetacean, any member of a completely aquatic cluster of mammals usually referred to as whales,…

Q: What is the notochord?How is this structure formed?

A: Embryology is about the study of zygote and embryonic and organ development in plants and animals.…

Q: Describe how lobsters, crayfish and shrimp are similar?

A: The science of classifying and naming organisms, plants and animals based on their morphology,…

Q: What is the outgroup between deep sea Dragon and shiny loose jaw And 2 similarities and differences…

A: Cladistics or phylogenetics is the maximum usually used technique in the biological category. It…

Q: Do fishes constitute a monophyletic group? The simple term "fish" is no longer used alone for…

A: No,fishes are not constitute monophyletic group. Such a gruop contains an ancestor and all of it's…

Q: is the group of chordates considered monophyletic? yes or no? why?

A: A monophyletic group, sometimes also called as clade, includes an ancestral taxon and all of its…

Q: Which group of animals displays metamerism? What is metamerism and what are some potential benefits…

A: Different animals possess different characteristics. The animalia contains different phylum with…

Q: Craniata includes animals within Chordata that have a skull.   True or False?

A: Animals can be grouped into chordates and non-chordates. The chordates have a backbone or notochord.…

Q: What are the different groups of crustaceans and what organisms are placed in each group?

A: Groups of crustaceans: There are over 50,000 known species of crustaceans divided into a number of…

Evolutionary lineages

An evolutionary lineage is a series of populations of organisms that descend from a common ancestor. Each species in the lineage is the direct consequence of evolutionary change from a common ancestor. A phylogenetic tree is generally used to display lineages visually. Lineages are components of the phylogenetic tree of life. Molecular systematics procedures are widely used to predict lineages.