What can be inferred about the evolution of the cranium and vertebral column from examining hagfishes and lampreys?

Q: Construct a dichotomous key to the classes of vertebrates using the table of characteristics below.

A: Given: Need to find in which class the vertebrates belong by checking the characteristics and…

Q: What are the features that result in tunicate’s being classified as an animal, chordate and…

A: Urochordata are also known as tunicates because outer body of tunicates is covered by tunic which is…

Q: A)gills  B) jaws C)pharyngeal slits D)vertebrae E)lavar stage

A: A phylogenetic tree often called a phylogeny is a diagrammatic representation that shows how various…

Q: Describe the features that allow most amphibians to havelife stages in water and on land.

A: Amphibians are living vertebrates of the class Amphibia and group Lissamphibia. They survive in a…

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

A: 1

Q: How does the foot of a bivalve differ from that of snails or chitons?

A: Limpets or Notoacmea, Collisella are known as small, cone-shaped shells found on the rocks…

Q: One difference between the 'fishapod', Tikaalik, and the early tetrapod, Acanthostega, is... Group…

A: Tetrapod development began approximately 400 million years ago in the Devonian Period, with the…

Q: What shared characteristic supports the surprisingly close relationshipbetween echinoderms and…

A: BASIC INFORMATION  EVOLUTION The theory of evolution was first given by the Jean Baptist de Lamark.…

Q: What are the characteristics of a female mud crab ( Scylla serrate) on its carapace?

A: Carapace is meant for the protection and it vary in size and is different in males amd female.it is…

Q: How are the echinoderms significant to the marine environment? Relate some (at least two) of their…

A: Echinoderms -- Echinoderms are the members of the phylum Echinodermata . Animals have numerous…

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: compare the evolution of bony fish and jawless fish.

A: During the Cambrian explosion approximately 530 million years ago, fish began to evolve. The early…

Q: List features common to bony fish, amphibians,amniotes, and mammals.

A: Vertebrates referred to as the group of organism that comprises a backbone or vertebral column.

Q: Define about Fishes: Evolution of the Jaw ?

A: An aquatic vertebrate that bears gills for respiration and lacks limbs with digits is called fishes.…

Q: Contrast the skeleton of an echinoderm with that of an arthropod.

A: The kingdom “Animalia” has several phyla (taxonomic rank: phylum). The organisms of this kingdom are…

Q: Identify the four features that distinguish chordates fromother animal phyla.

A: Chordates are the members of the phylum Chordata. This phylum comes under the kingdom Animalia.…

Q: What are four distinguishing characteristics of chordates?

A: The four qualities of chordates are a notochord, dorsal, pharyngeal cuts (or pockets), and postanal…

Q: Explain how each molluscan feature is modified, compared to gastropod and bivalve body plans. 1)…

A: Cephalopods, Gastropods and Bivalvia are all classes of Molluscs. They differ in their habitats. For…

Q: Are the chelicerae of horseshoe crabs homologous or analogous to (1) scorpion pedipalps? (2)…

A: Horseshoe crabs are present in the cephalothorax region. It has walking legs which are the modified…

Q: Which chordates are craniates, and which of those are alsovertebrates?

A: Craniates are a group of chordates that possess a craniate skull made up of hard bone. All craniates…

Q: ge 1: Which statement is false according to the tree below? Hagfishes Agnathans Lampreys…

A: Answer : the statement which is false according to the tree below Is :    c)  turtles are more…

Q: Threespine sticklebacks that invaded freshwater lakes have lost their pelvic spines. What other…

A: Threespine sticklebacks (Gasterosteus aculeatus) are commonly found in the ocean. They are…

Q: Describe key adaptations of aquatic gnathostomes

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

Q: What differences in morphology among Osteolepiformes (Eusthenopteron), Tiktaalik, and Ichthyostega.…

A: Osteolepiforme- Long and slender, with posterior fins set far back and a long mouth lined with…

Q: What is a major difference in function of the coelom in holothurians compared with other…

A: The holothurians are commonly called sea cucumbers. They have one distinct feature which separates…

Q: What character does the term rhizarian indicate about the forams and actinopods?

A: Rhizaria are an ill-defined, species-rich supergroup consists mostly of unicellular eukaryotes.…

Q: How are the echinoderms significant to the marine environment? Relate at least three of their…

A:

Q: Offer a description of an adult tunicate that would identify it as a chordate, yet distinguish it…

A: Chordates belong to the phylum Chordata.The Chordates in their full life cycle have one of the…

Q: Why are echinoderms considered part of the Deuterostomes, despite having incredibly unique…

A: Echinoderms are marine, spiny invertebrates belonging to the phylum Echinodermata, superphylum…

Q: Give one example of each of the four Vertebrate Classes, which are grouped under the Amniotes.

A: Sauropsids and synapsids are members of the amniote group of tetrapod animals. They are…

Q: invertebrate chordate. Which of the following would ensure that you are indeed looking at a…

A: A vertebrate is an animal with a spinal cord surrounded by cartilage or bone. The word comes from…

Q: list the functiond of the mandibles, maxillae, and maxillipeds in crayfish

A:

Q: Which of the following is a characteristic of all chordates at some point during their life cycle?…

A: Kingdom Animalia includes the phylum Chordata. The phylum Chordata is further divided into three…

Q: What are the differences between vertebrates and the other chordates?

A: Organisms are divided into two categories- Vertebrates and Chordates. Vertebrates have vertebral…

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: 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: How do the presence/loss, form, and function of the radula differ within members of the Classes…

A: Mollusks are a diverse group of animals that have a wide range of uses for humans. Many mollusks,…

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: