Dolphins and humans both have the ability to nurse their young, whereas the less closely related sharks do not. The ability to nurse their young is (a) a shared derived character of fish and mammals (b) a shared ancestral character of all vertebrates (c) a shared derived character of mammals (d) anexample of homoplastic behavior (e) an example of reversal

Q: Biologists and Paleontologists see in modern and fossil forms what appears to be the development of…

A: Evolution  The adaptation of the organism to survive and reproduce in an environment.

Q: Elaine Morgan makes the case that humans may have an aquatic ancestor in recent evolutionary past.…

A: Elaine Morgan theory suggests that early apes have lived  in aquatic environment a significant part…

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

A: The dogfish shark or spiny dogfish is the species of the Squalidae family of sharks, which is a part…

Q: Are Rhesus Monkeys or Gibbons More Closely Relatedto Humans?

A: Primates are evolved about 65 million years ago. Characters of primates includes, grasping hands and…

Q: How might you use biotechnology to show humans today have Neanderthal genes, and therefore,…

A: Biotechnology is the use of living organisms to create or modify products, or to perform processes…

Q: According to Lamarck’s theory of evolution, organisms change during their lifetime to survive then…

A: Lamarck's theory of evolution is the 1st theory of evolution which was proposed by Jean Baptiste de…

Q: How similar are the genomes of humans and chimpanzees? What genetic changes might be responsible for…

A: Homo sapiens and chimpanzees Pan troglodytes shared a common ancestor roughly 5-7 million years ago.…

Q: What type of evolution explains the similarity in penguins, dolphin, and shark fin similarity?

A: The process of slow and gradual change over a period of time is called evolution. Organic evolution…

Q: Is viviparity a synapomorphy of the mammals? Explain.

A: Synapomorphy is a characteristic that is present in the Ancestors and which is also shared by its…

Q: Is there any genetic evidence linking lobe-finned fish and amphibians

A: Lobe-finned fishes and amphibians are closely related and connected through a common ancestor which…

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: 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: 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: How does variation in resistance to toxic rough-skinned newts affect the evolution of garter snakes?

A: The rough-skinned newt is famous for it's strong toxin released from it's skin. have rounded snout,…

Q: In evolution, is it possible that there was an intermediate species between chimps and humans?…

A: Any net directional shift or cumulative change in the traits of organisms or populations over many…

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: 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: Do you believe that experiments might be useful in determining the adaptive function of the pecten,…

A: Answer: PECTEN: The pecten is a structure containing bundle of blood vessels. pecten is mostly…

Q: If Lamarck and Darwin had debated why giraffes have such long necks, how would their explanations…

A: Evolution is a steady ( gradual) phenomenon which cause transformation of life from simple to…

Q: Do patterns of organizations of animals portray evolutionary trends but do not depict evolutionary…

A: Groups of species engage in several patterns of evolution over time such as-  convergent evolution,…

Q: What symbolic behavior is evident in the archeological record and associated with Neanderthals and…

A: Neanderthals were similar to Modern Humans in their behaviours including Use of symbols. Burying…

Q: How can we understand the evolutionary relationships among animals, and how, in turn,can we…

A: Answer: Introduction: A phylogenetic tree, also called as a phylogeny, is a diagram which shows the…

Q: In 1928 Walter Garstang hypothesized that tunicates resemble the ancestral stock of the vertebrates.…

A: Introduction: Tunicate dwells in marine environment and is an invertebrate belonging to subphylum…

Q: What type of parental care would you predict for Velociraptor or Triceratops? Is there evidence of…

A: Parental care is a specialized type of evolutionary and behavioural strategy which is exhibited by…

Q: A number of behaviors that exhibit cultural evolution, such as tool-using, also have genes that…

A: INTRODUCTION Because culture is both constrained and promoted by the human genome, human cognitive,…

Q: the common ancestor of Cnidarians were an open-ocean jelly fish, what would you infer regarding the…

A: Cnidarians is a phylum which comes under the main classification animilia  They are aquatic animals…

Q: Elaine Morgan makes the case that humans may have an aquatic ancestor in recent evolutionary past.…

A: Thank you for the question  Answer : Elaine Morgan in 1990 wrote a book named Scars of Evolution.In…

Q: When Charles Darwin visited the Galapagos Islands, he observed the marine iguana. He later decided…

A: Land iguanas are more solitary by nature than aquatic iguanas, which can be found in close proximity…

Q: Based on phylogeny and history of evolution, do new anatomical features such as lungs (amphibians)…

A: The study of links between various groups of species and their evolutionary development is known as…

Q: What hypothesis is a true statement connecting to early hominin behavior seems the most plausible?…

A: The evolution of modern humans from our hominid ancestor is usually believed to have taken four…

Q: An example of peramorphosis would be a____.   salamander that becomes sexually mature while still…

A: Peramorphosis is a process in developmental biology, where the growth/maturation of an animal is…

Q: Name three “unique” characteristics observed in the dogfish shark and explain how these features…

A: There are varieties of species of shark and each has a specific adaptation for survival in a…

Q: If we compare DNA sequences of related species pairs (human vs. gorilla and D. melanogaster vs. C.…

A: Adaptation is the mechanism in which a population adapts to its surroundings; it is the result 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…

Q: What is the currently favored explanation for the evolution of vertebrate jaws?

A: The jawless vertebrates belong to the subphylum Vertebrata under the section Agnatha. The…

Q: Is this evolutionary conservation of the pecten structure evidence that natural selection might be…

A: Birds belong to the class Aves under vertebrates in the animal kingdom. Birds have the biggest…

Q: The name for the monophyletic group of animals that includes all reptiles, mammals, birds, and…

A: Monophyletic group is a clade that includes an  ancestors and all of its descendants.

Q: Why is studying Animals significant and why is Animal Diversity important and implicit to any…

A: Biodiversity is a critical measure of an ecosystem's wellbeing. Threats will be handled better by a…

Q: When Charles Darwin visited the Galapagos Islands, he observed the marine iguana. He later decided…

A: Evolution is a gradual process in which pre-existing organisms develop new distinct ones. It leads…

Q: If members of a group, such as chordates , evolved from a common ancestor then they should show…

A: The oldest discovered fossil of chordate is Pikaia gracilens belonging to cephalochordate. It is…

Q: Assume that you discovered Caenorhabditis elegans that crawl significantly slower than others. How…

A:

Q: Many lines of evidence, including biochemical evidence, show that living birds are direct…

A: Birds are defined as the warm blooded animals that form the class Aves in Mammalia.

Q: What are 5 examples of physiological adaptation in mammals (Note:Pls. specify the name of the mammal…

A: Physiological adaptation is a body's internal procedure that enables a life form to control and…

Q: evolutionary history of animals , there has been temdency for maximum body size to increase ? Do you…

A: The relationship between size and complexity is analyzed by examining the effects of size increase…

Q: Fossilized remains of prehistoric mastodons show anatomical similarities to modern-day elephants.…

A: Natural selection is defined as the process where one species give raise to other new distinct…

Q: Describe the aboreal adaptation of nonhuman primates and include specific anatomical characteristics…

A: Primate is a mammal which belong to the taxonomic order primates.Primates arose around 85-55…

Q: Which stage of chimpanzee development is most similar to adult Ardipithecus ramidus? To adult…

A: Introduction :- Evolution is defined as the descent with modifications and it is a never ending or a…

Evolutionary adaptations

Evolutionary adaptation is the process through which organisms adapt or adjust to their surroundings to increase the chances of survival, mating, and reproduction. An organism's behavior, physiology, and structure are adjusted or changed to make it more suited to its environment.