Is the tubular-dorsal nervous system of chordates associated to radial or lateral symmetry? How does that explain the complexity level of the nervous system reached by the vertebrate evolutionary branch?

Q: Only mammals possess 3 ossicles in the ear? TRUE OR FALSE?

A: There are 3 ossicles in mammalian ear: malleus, incus, stapes. With the help of these 3 bones…

Q: Discuss how the vertebrate nervous system evolved.

A: Nervous system is a physiological system of our body and it uses specialized cells called nerve cell…

Q: What are the main orders of placental mammals? What are some representative species and…

A: The orders into that placental mammals are divided are the following: Artiodactyls, mammals with a…

Q: What are the main orders of placental mammals? What are some representative species and…

A: Introduction In this question we have to discuss about the main orders of placental mammal.

Q: How can the tubular-dorsal nervous system in chordates be compared to the nervous pattern present in…

A: Chordates belong to the phylum “Chordata”. This phylum consists of both vertebrates and…

Q: All of the following are evolutionary trends in the development of nervous systems for bilaterally…

A: D. increase in integration of neurons.

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: What adaptive benefit do the three middle ear bones afford mammals?

A: The three ear ossicles of mammals consists of malleus,incus and stapes which helps in transmission…

Q: To what extent are vertebrate external morphologies adapted for various functions?

A: Adaptation is one of the principal cause of evolution. Adaptation enables an organism to survive in…

Q: Although other groups of vertebrates are more numerous and have existed longer than mammals, mammals…

A: Vertebrates are animals that have rod-shaped vertebral columns. A bundle of nerves runs above the…

Q: Is there any genetic evidence linking lobe-finned fish and amphibians

A: Lobe-finned fishes and amphibians are closely related and connected through a common ancestor which…

Q: Why are the lung fish considered to have a common ancestor with amphibians

A: Rhipidistian freshwater fish belonging to the Dipnoi subclass are lungfish. Lungfish are best…

Q: Annelids have a nervous system that includes: O a. Adorsal brain connected to a nerve net. O b. A…

A: Annelids are a phylum of invertebrate worms. They are the segmented worms , well known species are…

Q: What are the roles of Hox genes in the development of Nervous System

A: Hox genes are the genetic switches that are involved in turning on and turning off other genes as…

Q: How does the anatomy of a cat reflect humans’ shared ancestry with sharks?

A: Evolution is the process in which all the living organisms characteristics gets evolved with the…

Q: During embryonic development, a neural crest would be found in all of the following chordates,…

A: Neural crest is a population of migratory cells which arise from the epithelial cells. It develops…

Q: What general trends can you identify in the evolution of the vertebrate brain?

A: The brain development in vertebrates have evolved into a more advanced and specialized trend…

Q: How does variation in resistance to toxic rough-skinned newts affect the evolution of garter snakes?

A: The rough-skinned newt is famous for it's strong toxin released from it's skin. have rounded snout,…

Q: Sensory organs are important anatomical features that helped lineages of vertebrates to succeed up…

A: Sensory organs and the neural networks responsible help in survival, development, learning, and…

Q: With what group do hominoids share the most recent common ancestor? (a) Old World monkeys (b) New…

A: Primates are placental mammals and they originated from arboreal, small tree-dwelling shrew-like…

Q: How did the vertebrate appendage evolve into the limbs we find so useful today?

A: The tetrapods consist of the a pair of forelimb and a pair of Hindlimb and these are supported by…

Q: Sensory organs are important anatomical features that helped lineages of vertebrates to succeed up…

A: Introduction The sensory nervous system is a component of the nervous system that processes sensory…

Q: How did evolution ever lead ostriches to hide their head in the sand when an enemy approaches?

A: *Before evolution takes place Ostriches doesn't hide their head in the sand and when approached by…

Q: Describe the cnidarian (radiate) nervous system. How is a tendency toward centralization of the…

A: The brain is the most important part of the body that controls every action in our body. It is a…

Q: Why do you think the ancestors of the extant amphibians became successful in adapting from the life…

A: Thank you for the question  Answer : Amphibians are a group of vertebrates that can live on land and…

Q: What are the silent features of different phyla in the animal kingdom?

A: The multicellular eukaryotic organisms called metazoa form the biological kingdom, Animalia. The…

Q: What structures play a role in protecting vertebrate central nervous tissue?

A: Definition of CNS The brain plays a central role in the control of most bodily functions, including…

Q: Provide two examples from invertebrates of such ‘reverse evolution’ from a derived state…

A: Evolution refers to the change in the species characteristics over several generations. Evolution…

Q: Mammals have brains that are more complex than those offish and amphibians, particularly in terms of…

A: The brain is the mass of nerve tissue at the front end of an organism. The brain integrates sensory…

Q: Given that modern echinoderms and chordates look nothing alike, what factors have led zoologists to…

A: Echinoderms are animals that belong to the phylum Echinodermata. They are recognized by radial…

Q: Describe the evolution of mammals, tracing their synapsid ancestry from early amniote ancestors to…

A: Introduction Mammary Glands, Which Produce Milk For Nourishing Their Young In Females, A Neocortex,…

Q: How does the anatomy of a cat (Felis catus) reflect humans shared ancestry with dogfish sharks?…

A: Comparative anatomy to study organ systems of many species helps to determine the relatedness of…

Q: Which of the following is not a characteristic of Neanderthals? O A. A weak chin O B. Average brain…

A: Here we have to find out which one is not a characteristic of Neanderthal.

Q: . What type of nervous system does the flatworm exhibit? A) Centralized nervous system B)…

A: Flatworm exhibits centralized nervous system.

Q: Explain how the forebrain, midbrain, hindbrain, and their associated sensory structures have…

A: Vertebrates comprise all species of animals within the subphylum Vertebrata. A vertebrate have a…

Q: Describe the evolution of mammals, tracing their synapsid ancestry from early amniote ancestors to…

A:

Q: How is the nervous system characterized in beings of the phylum Annelida? How can one compare…

A: Annelids are triploblastic, bilaterally symmetrical, metamerically segmented and a coelomate worm…

Q: Why is morphological convergence not a good explanation for vertebrate forelimbs?

A: The appendages of an organism are the limbs. The limbs on the anterior side are said to be the…

Q: For each of the five (5) main classes of vertebrates, which part of the brain is the most important.…

A: Introduction: phylum Chordata is divided into three subphyla: Urochordata, Cephalocordata, and…

Q: What is an unusual feature of the nervous network of cnidarians?

A: Cnidarians are also known as coelenterates which are mostly marine organisms and includes corals,…

Q: Describe the evolution of mammals, tracing their synapsid lineage from early amniote ancestors to…

A: An animal that is characterized by the presence of mammary glands (mostly in females and sometimes…

Q: What are HOX genes' role in lobe-finned fish to limbed tetrapod evolutionary transition?

A: HOX genes are known as the highly conserved transcription factors which are a part of the homeobox…

Q: Describe the evolutionary changes in nervous systems. Describe in this order: cnidarians, annelids,…

A: The evolution of nervous systems dates back to the first development of the nervous system in…

Q: What other primates have similar intermembral index values as humans and also limb proportions, and…

A: Primates are morphologically characterized into different species based on the relative lengths of…

Q: Why is the development of a central processing center for impulse conduction vital to the evolution…

A: The rapid conduction of nerve impulses would be an obvious priority for the nervous systems of…

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: What anatomical evidence has been used to support the idea that australopithecines spent time in the…

A: Evolution of human :-

Q: What are the noteworthy features of the nervous system of arthropods?

A: Arthropods are the invertebrate organisms and have segmented body, exoskeleton, and jointed paired…

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.