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

Q: ) Why is the amniotic egg considered an important evolutionary breakthrough? A) It has a shell that…

A: The amniotic egg allows deposition of eggs in a terrestrial environment (B).It also prolongs…

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: 1) Compared to the lenses of amniote eyes, the lenses of teleost eyes _____." A) are more flexible…

A: Amniote are a clade of tetrapods vertebrates that lay their eggs on land or retain the fertilized…

Q: European moles and Sumatran tigers both have eyes. However, European moles live completely in the…

A: Adaptation is slow phenomenon [changes in organism] that happens within organisms so as to survive…

Q: Although many mammals have binocular vision, the anatomical adaptation(s) that set primates apart…

A: The order Primates belong to the class Mammalia. The animals belonging to this group are lemurs,…

Q: In the evolution of the vertebrates , the myocytes provide the stem cells for a) smooth mucscles…

A: The primary component of muscle tissue is the myocyte, often known as the muscle fiber. They are…

Q: Which of the following is a balancing organ in humans? a) Eardrum b) Vestibular region c) Cochlea d)…

A: Introduction - Sense organs are sensory neurons-based organs that assist us in perceiving and…

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: The region of the vertebrate eye, where the optic nerve passes out of the retina, is called the(a)…

A: Eye is the chief organ of the visual system. In most mammals they are paired structures and are oval…

Q: A bird with a brain injury that results in it losing its ability to build a nest likely has an…

A: Introduction Neurology is the study of the nervous system. It is important to know neurology because…

Q: Which structure that detect the change? a.)Stimulus b.)Response c.)Receptor d.)Modulator

A: Homeostasis refers to maintaining an optimum level of certain factors in the body. Like, maintain…

Q: Identify one process that most likely resulted in the animals in warm climates having large ears,…

A: Evolution has facilitated series of organisms to overcome the odds of nature and adapt to the…

Q: D) CLASS MAMMALIA What are the general characteristics of mammals? - What are the 3 types of mammals…

A: There are 27 orders in total, divided into three subclasses dependent on reproductive strategies…

Q: The ossicles:   a. directly connect the tympanic membrane with the tectorial membrane   b.…

A: Ear is considered as one of the most important sense organs in living organisms; which helps the…

Q: Mention the benefits of an animal having a third eyelid.

A: The 'third eyelid', also known as the nictitans or nictitating membrane, is an additional eyelid…

Q: Which is NOT true about Homo habilis: A) considered the first tool maker B) had a smaller brain the…

A: The question is asking us to identify the incorrect statement about Homo habilis, an early human…

Q: Jacobson's organ is concerned with- (A) Smell (B) Burrowing (C) Touch (D) Vision

A: Introduction - The olfactory system refers to the biological structures that aid in the perception…

Q: 103) which of the following is mismatched? A) cochlear implant- hearing device B) nasal…

A: 1)A cochlear implant is an electronic device that improves hearing. It can be an option for people…

Q: There are two main groups of bats: Smaller “microbats” navigate by using sonar, and larger…

A: Question of bat ancestry can be resolved by Genome Sequencing.

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: Which is NOT an example of a structural homology?

A: (A) All vertebrate embryos from pharyngeal pouches:ExplanationThis is an example of structural…

Q: There is quite a bit of variation in fossils attributed to the species Homo habilis.  Some of the…

A: 1. These fossils have some diferrences from the Homo habilisin the shape and size of their heads.…

Q: Mammals have a particularly good sense of earing thanks to their inner ear which includes three tiny…

A: Introduction Evolution is the process of a species' features changing over numerous generations…

Q: Write short note on (a) Hindbrain (b) Retina (c) Ear ossicles

A: The human brain is the central organ of the human nervous system, and with the spinal cord makes up…

Q: ced Which of the following participates in the conduction of sound waves? 1) otolith membrane 2)…

A: The structures that participate in the conduction of sound waves include the auditory canal, malleus…

Q: What selective advantage does each of the following provide to humans? a) a large brain b) complex…

A: Humans are the most evolved species. But from the beginning, it was not so. It took many thousands…

Q: There is quite a bit of variation in fossils attributed to the species Homo habilis.  Some of the…

A: Homo habilis is an early species of the human genus Homo that lived between about 2.4 and 1.4…

Q: Why do so many animals have two eyes?

A: The eyes are the special sense organs that detect light.

Q: For each of the following, match the pattern with its description. Not all terms will be used.…

A: Convergent evolution refers to the process in which unrelated or distantly related organisms…

Q: 1) Homo habilis use tools of a type called ..................... while Homo ergaster use tools of a…

A: Homo georgicus is an extinct species of early humans that were discovered in Dmanisi, Georgia in…

Q: Prehistoric remains of animals consist almost exclusively of bones and teeth. Why?

A: It is generally found that the prehistoric times mainly comprise of harder body parts like bones and…

Q: It has been proposed that many of the muscles attached to the human ear served a purpose in other…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: d) All organisms share a common genetic code.

A: (a) All vertebrate embryos form pharyngeal pouches. All vertebrate embryos forming pharyngeal…

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: Based on the Mammal Tree, which of the following mammals is the fruit bat most closely related to?…

A: Humans are different from other animals in phylogeny in many characteristics such as bipedalism, the…

Q: Mammals have a particularly good sense of earing thanks to their inner ear which includes three tiny…

A: Comparative anatomy is the study of the "similarities and dissimilarities" between various objects.…

Q: How would Darwin explain the emergence thick, strong beaks in birds living in an area with only hard…

A: Introduction :- Charles Darwin, full name Charles Robert Darwin, was an English naturalist whose…

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: