What is the select advantage of the evolution of the jaw in dogfish shark?

Q: What is the evolutionary significance of the fifth gill arch of bony fish no longer supporting a…

A: The vast majority of vertebrates belong to the Osteichthyes superclass of bony fishes. Bony…

Q: From an evolutionary perspective, what is the significance of each of the following: (1) placoderms,…

A: The term evolution can be defined as the  change in the features of different species over a long…

Q: Explain why an understanding of bipedalism and brainsize is important in understanding the evolution…

A: Evolution is an ongoing process. Changes occur in species every time, however, only some of them…

Q: Which of the following are shared-derived* characteristics of the species found within the Genus…

A: Shared derived characters among Genus Paranthropus.

Q: Branchial arches of the shark support the gill  pouches and each one consists of five cartilagous…

A: Sharks are a gathering of elasmobranch fish known by a cartilaginous skeleton, five to seven gill…

Q: List four anatomical differences between chimpanzeesand humans, and explain how these changes…

A: Humans and chimpanzees belong to the same family in the taxonomy that is Hominidae. Human and…

Q: What feature separates the Chondrichthyans (sharks and rays) from the lobed-finned fishes? O some…

A: The class Chondrichthyes has two subclasses: the subclass Elasmobranchii (sharks, beams, skates, and…

Q: How are the "types ot veterbrae" modified in birds, relative to other amniotes?

A: Many variables influence the survival or extinction of an organism's population. On the other hand,…

Q: Dogfish sharks (Squalus acanthias) represented  “primitive” gnathostomes and cats (Felis catus)…

A: Anatomy is a branch of biology concerned with identifying and describing living organisms' bodily…

Q: The peculiar beveled wear (inward from the lips) that tends to characterize the incisors of older…

A: We are answering the first question for rest kindly repost

Q: Give an example animal for some of the key adaptations of chordates: (a) backbone, (b) skull, (c)…

A: The Chordata can be described as the animal group involving highly evolved animals with anatomical…

Q: Which of the following is true regarding evolutionary changes in morphology of dentition over time…

A: During evolution of humans, there was changes in morphology of dentition over time. Here, we have to…

Q: What derived characters do sharks and tuna share? Whatfeatures distinguish tuna from sharks?

A: Pieces are true, jawed vertebrates with specific organs for respiration, excretion and blood…

Q: Describe the functions of the structures of the sharks. What is the feeding strategy of the shark,…

A: There are almost 500 species of sharks in the ocean. Mostly all songs are having a similar kind of…

Q: previously undiscovered sea creature that appears to represent a new phyla. It happens to have…

A: The mouth develops first, and it goes through several larval stages in which it molts and regrows…

Q: Describe the major vertebrate adaptations that arose in fishes. Which of these features are also…

A: Fishes are the aquatic chordate animals which belong to Pisces family. Fishes are used as delicacy…

Q: Compare the features of the sea urchin and sea cucumber to each other and to the starfish. Do all…

A: Sea urchins are echinoderms that are typically spiny, globular animals, belonging to the class…

Q: How does the alligator snout become elongated relative to the salamander’s?  Does it add new bones,…

A: Alligators are semi-aquatic carnivores, also sometimes referred as "living fossils" showing…

Q: The following image is from a scientific publication by paleontologist Niel Shubin, who was part of…

A: Homologous structures such as organs or bones are the structures which posses similar anatomical…

Q: buttressing system. Different skull functions show species developments. What different activities…

A: Ho.o habilis and homo erectus were archaic humans. Homo habilis lived around 2.4 million years ago…

Q: Find the hash mark indicating the origin of jaws. Which group or groups of vertebrates possess jaws?…

A: Vertebrates are the chordates that have a vertebral column.

Q: Please place the following Chordate adaptations in order of most ancient (1) to most recent (4). 1…

A: Evolutionary developmental biology, is considered a new norm in evolutionary biology. It arose from…

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: evolution of these animals (EMU, Liver fluke, Octopus, polar bear, raw pore rope sponge, and green…

A: Most fundamental characteristics in evoultion of these animals are as follows_ EMU_ They are…

Q: Why is it likely that Hox genes have played a major rolein the evolution of novel morphological…

A: The Hox proteins are involved in the transcription factor discovered from Drosophila which govern…

Q: Increased meat consumption is suggested to have led to increased brain and body size in H. erectus…

A: The implications of increased meat consumption in Homo erectus and it's potential implications for…

Q: What are two noticeable morphological differences between the sharks and ray-fin fishes? What is the…

A: Step 1 Chondrocytes or cartilaginous fishes are a small group of mostly marine and predaceous fishes…

Q: What skeletal structures behind the mandibular arch in the dogfish appear to be homologous with the…

A: Dogfishes, belonging to the Order Squaliformes, are coastal sharks of 5 feet length. These species…

Q: How and why do jaws have evolved?

A: How jaws evolved : Jaws probably originated in the pharyngeal arches supporting the gills pf jawless…

Q: All mammals have tailbones and muscles for moving a tail. Even humans have a reduced tailbone and…

A: Evolution is the gradual progression in the inherited traits of natural populations over many…

Q: Observe the behavior of the live goldfish. Note the movement of the operculum. What is its function?…

A: Operculum is a characteristic of Bony fishes like Goldfish. It supports the facial features of the…

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: 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: identify at least5 homologous structures between sharks and pigeons

A: Homologous structures  Structures that are structurally similar but have different functions.

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: Recall that amphibians gave rise to the earliest reptiles who then branched off to all the different…

A: Reptilia is a group of terrestrial vertebrates with dry skin covered with horny epidermal scales and…

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.