Pakicetus is an ancient wolf-like organism that lived 50 million year ago. It had wolf-like ears and nostrils on the front of its skull. Modern whales have a similar ear structure, but their nostrils are on the back of their skull. Aetiocetus lived 25 million years ago, had the same ear structure as both Pakicetus and modern whales, but nostrils in the middle of its skull. According to this information, the most likely conclusion that biologists could draw about the relationship of Aetiocetus to the other organisms is that Aetiocetus...

Q: Lamarck

A: Jean-Baptiste de Lamarck, often simply known as Lamarck. He was a French biologist, naturalist,…

Q: Tiktaalik is a fish that lived 375 million years ago that grew to three metres long and had aquatic…

A: The study of evolutionary processes and speciation provides valuable insights into the mechanisms…

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: 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: Shanidar Cave of the Zagros Mountians in Iraq, fossil remains of an older individual were recovered…

A: Neanderthals are an extinct species of humans who lived in Eurasia until about 40,000 years ago.…

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

A: Introduction:- Evolution is the process of a species' heritable features changing over many…

Q: While hiking through the desert of New Mexico, the Smith family found a fish fossil. They thought it…

A: During the evolutionary period ;there are sudden  climatic changes that takes place in the…

Q: Which of the following is not a change that occurred through primate evolution? a size of teeth b…

A: Primates have been around for 57-90 million years.Primate ancestors are said to have evolved from a…

Q: Are the limbs modified into wings of bats and the wings of birds examples of evolutionary analogy or…

A: Homologous organs are defined as the organs of different species that are having a similar structure…

Q: North American desert horned lizards have the unusual ability to flood their ocular sinuses with…

A:

Q: Where on the tree did lungs (or lung derivatives) evolve? Group of answer choices D C A E B

A: Phylogenetic tree of chordates is given in the question. Phylogeny depicts the evolutionary…

Q: According to the current hypothesis, when did most major groups of animals evolve?

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

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: Mammal numbers, diversity, and size increased dramatically at the end of the Cretaceous because

A: At the end of Cretaceous period mass extinction of dinosaurs takes place most probably due to…

Q: There are species of fish that live in caves no longer connected to the surface. These fish have eye…

A: Evolution is the variation in the characteristics or features of a species over several generations…

Q: Among the tetrapods, reptiles evolved a key adaptation that allowed them to become fully independent…

A: Evolution is the process of change over time in the inherited characteristics of a population of…

Q: Mindoro Black Rat (Rattus mindorensis) Explain the following taxon of this animal: Class -…

A: The Mindoro black rat (Rattus mindorensis) is a types of rat in the family Muridae. It is tracked…

Q: Professor Andrew, a paleontologist discovers a transitional fossil between a stem amniote and…

A: Fossils are the preserved remains or traces of organisms (plants, animals, etc.) from the past.…

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…

Q: Flight evolved two times among the animals in this phylogenetic tree; once in birds, and once in…

A: Homologous characters   These are defined as the body parts of species that have similar…

Q: The earliest-diverging gnathostomes (jawed vertebrates) were fish. Which one of the following…

A: Jaws, in fishes, are developed from the pharyngeal arches, which play a major role in protection of…

Q: Consider the following statement. Is it true or false? Why? Please justify your answer explaining…

A: In the context of genomics, evolution is the process by which living things undergo alterations in…

Q: Using the images & information below, choose which explanation best explains the shape & size of the…

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

Q: fter the mass extinction that occured 65 million years ago, mammals rapidly diversified to occupy…

A: Adaptive radiation is defined as the rapid growth of organisms that share a common ancestor and is…

Q: Pick a specific animal that exists today and research its ancestor from millions of years ago. How…

A: Answer :- Crocodylians are the last living delegates of the crocodylomorpha, a to be sure more…

Q: Species that are closely related exhibit similarity in embryonic development O Species that are…

A: INTRODUCTION  Evolution is the change in the biological and physical characteristics of animals or…

Q: construction project required digging hundreds of feet into the ground, which exposed many discrete…

A: Theory of evolution: Evolution is a biological process involving the change and adaptation of all…

Q: Explain why the statement that a monkey is more evolved than an earthworm is incorrect?

A: Evolution refers to the heritable changes in the characteristics of species over several successive…

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: Ornithopods and ceratopsians are characterized by numerous instances of convergence. Which of the…

A: Ornithopods are small, bipedal, running dinosaurs that are herbivorous animals. These dinosaurs have…

Q: Consider an elephants long trunk. Assuming elephant trunks started out short, explain how darwin…

A: Darwin  and Lamarck both explained the evolution process but both speculated it in a different…

Q: Given homologous structures like a bird’s wing & whale’s flipper and analogous structures like a…

A: Evolution is the positive change in an organism that accumulates in it over a period of time giving…

Q: Radiometric dating and the cranial capacity measurements are back from the paleolab for the specimen…

A: Human evolution is defined as "the process by which humans evolved on Earth from now-extinct apes."…

Q: Did humans evolve from chimpanzees? Explain.

A: Introduction  Taxonomy is the branch of science which deals with the classification of organisms in…

Q: What is Natural Selection? (Use the follow-up questions below to construct your answer) How did…

A: Evolution is a process involving a change in the genetic composition of a population over successive…

Q: Neandertals are argued to have evolved from… Group of answer choices European premodern humans…

A: European pre modern humans.

Q: Eels have slender bodies that facilitate moving through narrow cracks in rocks when searching for…

A: -Eels which are ray finned belongs to the order Anguilliformes. -These are the limbless aquatic…

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.