What characteristics are shared between monotremes and placental mammals but not marsupials? What would this observation lead to conclude about the order in which these animals evolved?

Q: Describe the evolutionary changes that had to occur to go from a Osteichthyes to a mammal. What were…

A: Evolution is a phenomenon that occurs in the environment as a result of hereditary changes and…

Q: What are the hypotheses used to trace early evolution of animals?

A:

Q: Fossils suggest that the first major trait distinguishing human primates from other primates was…

A: Fossils are the remains of the ancient animals say bones or these are the impressions of  plant or…

Q: According to the fossil record, what did the common ancestors of modern whales and dolphins look…

A: Evolution is the orderly change from one form to another form.

Q: Based on the anatomical evidence from the photos below, create a claim about which modern organism…

A: The change in the heritable characteristics of the species across many generations is called…

Q: Au. sediba lived in southern Africa around 2 mya. When did the first members of the Homo genus…

A: Australopithecus sediba is the extinct australopithecine who lived 1.98 milion years before on…

Q: Why would you expect a hybrid of Neanderthals and modern humans to have intermediate features?

A: Neanderthal is a group of archaic humans that went extinct around 40,000 years ago. While modern…

Q: What can skeletal anatomy and DNA sequences in existing primates tell us about the study of human…

A: Comparing the skeletal anatomy of human fossils with existing primates provides info concerning diet…

Q: How does the hypothesized origin of modern humans (Homo sapiens) differ from the hypothesized origin…

A: Evolutionary history reveals that certain races of humans start evolving at different places. It is…

Q: How closely is Homo sapiens related to Neandertals?

A: Evolution is change in the heritable qualities of organic populaces over progressive ages. These…

Q: Draw a simple cladogram illustrating the evolutionary relationships among extant mammals…

A: The living organisms are interrelated with one another. The study of the interrelationship among…

Q: Urochordates, instead of amphioxus, are now considered the sister group of vertebrates. Why is…

A: Urochordates are monophyletic and belong to Vertebrata. The tadpole larva shows the morphology of…

Q: What other reason besides continuing to use trees might explain why early hominins had partially…

A: Hominid:            The group comprises all modern and extinct Great Apes signifies modern humans,…

Q: What is the evolutionary relationship of Neanderthals to Homo sapiens?

A: While a modern human who lived about 40,000 years ago was found to have about 6-9 percent…

Q: Identify three novel characteristics that distinguish hominins from other apes and mammals.

A: Hominin is a species on the human branch of the evolutionary tree. It includes Homo sapiens and our…

Q: You are searching for hominin fossils in Africa and discover a skull with a sagittal keel, an…

A: Introduction : The fossil record of hominins includes all fossil taxa that are more closely related…

Q: What physical traits made scientist  believe that neanderthals adapted to the cold of the Ice Age in…

A: Neanderthals (Homo sapiens neanderthalensis) are the group of humans that emerged during the…

Q: Describe skeletal and skull differences between apes and hominins.

A: Hominins are the groups of species that are the ancestor of humans closely related to humans. These…

Q: Which of the following is true as the presence of bones is similarly found both in the baleen whale…

A: Baleen whales (systematic name Mysticeti), also known as whalebone whales, form a parvorder of the…

Q: Which archaic Homo sapiens fossil has cut marks on its face, indicating a burial or ritual practice?…

A: Introduction The evolutionary process that resulted in the emergence of Homo sapiens as a distinct…

Q: Some researchers think that Australopithecus garhi may be an ancestor of early Homo because [Select]

A: Australopithecus is a genus of extinct primates similar to modern humans that have been discovered…

Q: What do the terms Theria, Metatheria, Eutheria, Monotremata, and Marsupialia mean? List mammals that…

A: Mammals are a class of the phylum Chordata and the characteristic feature of this class is the…

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: List two possible hypotheses for why human head lice diverged evolutionarily from chimpanzee lice:

A: Divergent evolution occurs when a population of animals or plants is divided into two groups by a…

Q: Which of these phenotypes is linked to the use of hominin tools?  Loss of incisors Increased pelvic…

A: The study of the evolution helps in determining the relationship between different organisms and it…

Q: What was the “big revelation” about Neanderthals and humans revealed by genetic studies?

A: Neanderthals and humans are hominins. Neanderthals are the extinct ancestors of humans and they…

Q: Some researchers call Australopithecus garhi, Homo garhi because of

A: The class or group name Australopithecus is gotten from the Latin word 'australo' signifying…

Q: The classification of Neanderthals as Homo neandertalensis would mean that Neanderthals and living…

A: Human evolution refers to the change in characters from the ancestral to modern human. They are…

Q: Which mammalian lineage do H. sapiens belong to?    Marsupial   Monotreme    Eutherian

A: Mammals belong to a group of vertebrate animals which belongs to the class mammalia and have mammary…

Q: Which of the following are ways in which early hominins differed from apes? (select all correct…

A: The Great Apes are a sub division of primates that includes humans. Humans are primates, however…

Q: What species of hominins other than the Neanderthals may have commingled with modern humans?

A: Hominin, the term is used to refer to extinct members of the human lineage, most of which are quite…

Q: What specific evidence do paleoanthropologists cite to support the arguments that Neanderthals had a…

A: Paleoanthropologists consider that Neanderthals had propensity to interbred. The reasons for that…

Q: Which statement best explains why Lystrosaurus fossils are found on these two continents?

A: A fossil is any preserved traces, impression, or residue of a once-living thing from a previous…

Q: Was the ancestor of all dinosaurs feathered or scaly?  What character condition did you get

A: It is clear from the genetic tree that ancestral dinosaurs were mostly scaly.

Q: Considering phylogenies can the pigeon be a reptile (a member of clade Reptilia) as well as a…

A: Answer : PHYLOGENY is the history of the evolution of a species or group , especially in reference…

Q: Identify some characters that distinguish hominins fromother apes.

A: The Hominins are the tribe that generally belongs to subfamily Homininae. They include humans and…

Q: Do you think Woolly Mammoths should be brought back from extinction? How about Neanderthals? why, or…

A: Why Woolly Mammoths should be brought back from extinction? At the conclusion of the previous "ice…

Q: a) Which of the derived traits came into existence before the bony shell? Explain. b) List all the…

A: A cladogram is a diagram representing an evolutionary tree that gives direct information about the…

Q: When did the different species of Homo appear and how did their cultures differ?

A:

Q: what are the browsing-horse and the paleotheres parallel evolution?

A: Evolution is a gradual process of change in characteristics as per surrounding environment and needs…

Q: What is the most probable primitive condition for eutherian (placental) mammals (node C)?

A: Eutherians are differer from noneutherians by various phenotypic traits of the feet, ankles, jaws…

Q: How could morphological data alone lead biologists to group animals into erroneous evolutionary…

A: The evolutionary relationship between the different organisms is shown by the phylogenetic tree. How…

Q: Hypothetically, if large/medium sized whales had not evolved, how may this have impacted the…

A: * Megalodon is an extinct species of mackerel shark . *It was thought to be member of family…

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.