Mammals have a particularly good sense of earing thanks to their inner ear which includes three tiny bones. Reptiles, in contrast, have a single inner ear bone. The lower jaw of reptiles is composed of multiple bones while the lower jaw of mammals is a single bone. Fossil and developmental evidence indicate that the inner ear bones of mammals evolved from lower jawbones. This suggests that the inner ear bones of mammals are Mammal skull, including ear bones eardrum Reptile skull, including ear bone eardrum a transitional trait a vestigial structure a living fossil an exaptation Oan analogy

Q: All vertebrates (including humans) share all of the following anatomical traits except: O a body…

A: According to taxonomical division, the Vertebrata is a sub-phylum of the phylum Chordata.   The…

Q: Neanderthals DNA and behaviors show uS the ways in which they adapted to their environment over…

A: Introduction:- The process of development of present day Homo sapiens through different stages like…

Q: Which of the following is NOT a derived feature of the anatomically modern human skull? a…

A: Retromolar space

Q: All mammals share a similar structure of the vertebrae in common. For instance, in spite of its…

A: All mammals share a similar structure of the vertebrae in common. In spite of it's height, the…

Q: Early hominins had just as large of brains as modern humans do today. Group of answer choices

A: There are around 400 species of primates, including monkeys, prosimians (bushbabies, lemurs), and…

Q: Describe the evolution of mammals and the major groups of living mammals.

A: Evolution refers to the alteration of heritable traits of biological populations over time. These…

Q: Aside from outer pinna, what structures do mammals have in their ears that reptiles and birds do…

A: * pinna  is absent in many mammals and  this organ acts as a heat dissipator but not involved in…

Q: Fossil evidence indicates that the earliest hominids; Had small brains like a chimpanzee, and tails…

A: By the early hominids being biped, meaning they are able to stand and even walk on two feet, it…

Q: Explain the reason why modern biologists can more easily accept that a mammal can have some reptile-…

A: Mammalia is the class of mammals. They are warm-blooded creatures that control the terrestrial…

Q: The bones that make up the forelimbs of monke cats, whales, and birds are similar. of the following…

A: Evolution can be studied by various evidences like homologous and analogous organs.

Q: Regarding the evolution of the mammalian inner ear, the above diagram shows: A) the co-option of jaw…

A: Introduction: The mammalian ear ossicles were an evolutionary phenomenon. Where the skull bones are…

Q: We learned about a lot of species of mammals with  heterodont dentition. However, some mammals are…

A: Mammals are a diverse group of animals that exhibit a wide range of dental characteristics. While…

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: Birds today are defined by the presence of feathers. Feathers have many uses to include…

A: Evolution is the process of a species' characteristics changing over many generations by natural…

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: ____ genes are regulated by segmentation genes and control the development of specific structures…

A: 1 blank- Gap genes 2 blank- homeodomain

Q: Some scientists suggest that the Neanderthals and possibly Denisovans, never went extinct, but…

A: Introduction About half a million years ago, modern humans, or Homo sapiens, and Neanderthals shared…

Q: Pictured above is an Eurasian Owl, a species found in forests across Europe and Russia. Owls are a…

A: The above mentioned picture is a eurasian eagle. It is mostly found in Europe and Asia. It is also…

Q: The nonfunctional pelvis and hind limbs found in some snakes support which statement about…

A:

Q: Discuss: How old are the oldest camel fossils shown? How has the skull changed over time? How have…

A: Evolution is the gradual change in forms of life throughout the world. Plants, animals, microbes all…

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: Which evidence best supports the theory that organisms, such as whales, have common ancestry and…

A: The correct answers are: Options - 1, 3, 5

Q: Evidence that proves early Homo started adding meat to their diet at least 2.6 million years ago…

A: The statement is asking if there is evidence that early Homo species started incorporating meat into…

Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.