According to the fossil record, what did the common ancestors of modern birds look like? Horses O Whales Land Mammals

Q: Explain the significance of the discovery of Archaeopteryx. Why did this fossil demonstrate beyond…

A: Evolution is a natural process that includes several changes over many generations in the…

Q: Why are plesiadapiforms most likely the earliest primate ancestors?   A. They do not have a…

A: Thе quеst to pinpoint thе еarliеst primatе ancеstors is a fascinating pursuit within thе rеalms of…

Q: The first appearance of feathers in dinosaurs may have functioned in insulation or courtship…

A: The first appearance of feathers in dinosaurs likely served multiple functions, but the most widely…

Q: Which of the following characteristics evolved independently in mammals and birds? bone endothermy…

A: Mammals are a group of vertebrate animals constituting the class Mammalia and characterized by the…

Q: The evolution of which of the following features of mammals is hardest to trace through the fossil…

A: Fossil records are the remains of dead organisms that remained intact in various layers of soil in…

Q: rodents & sharks ray-finned fish amphibians primates rabbits crocodiles birds hair eggs with shells…

A: A phylogenetic tree, additionally referred to as a phylogeny, is a diagram that depicts the traces…

Q: Are birds more closely related to extinct branches of reptiles or to mammals?

A: Birds belong to the group of warm-blooded vertebrates and falls in the class of Aves, which has…

Q: Dinosaurs represent one of the oldest groups of animals

A: In this question, we have to explain the dinosaurs belongs one of the oldest group of animals.

Q: The special adaptations of birds contribute to two essentials for flight: more power and less…

A: The special adaptations of birds that contribute to a better flight are lightweight, streamlined…

Q: You decide that it is a eutherian rather than a marsupial. How do you know based on its…

A: A marsupial is a mammal that raises its newborn offspring inside an external pouch at the front or…

Q: Describe three adaptations that allow for flight in birds.

A: Birds belong to the class Aves of kingdom Animalia. They are bipedal feathered and warm-blooded…

Q: What is a plausible scenario for evolution of wings and flying insects?

A: Evolution is the natural process where is a change in the heritable characteristics of biological…

Q: how did bat wings evolve from arms?

A: Evolution is the process of change in the features of an organism with time. It is based on the…

Q: Describe when and from what group birds evolved, and list their unique traits.

A: Birds evolved during jurassic period around 165-150 million years ago. They evolved from a group of…

Q: Flight in birds developed over time due to multiple evolutionary steps. The development of feathers,…

A: Evolution is a result of adaptation to environmental cues. For an organism to develop certain…

Q: Contrast the arboreal and cursorial hypotheses for the origin of flight in birds.

A: Evolution is a change in the “genetic composition” of a population over multiple generations. It is…

Q: List at least five evolutionary changes that occurred with birds (each one should be from a…

A: Introduction Evolution is the process of change in the characteristics of living organisms over…

Q: If you discovered a fossil bird with scales on the body & teeth in the beak. What would…

A: Fossils are any preserved remains, impression, or trace of any once-living thing from a past…

Q: What is the best evidence that Monotremes are a transitional taxon between reptiles and other…

A: Monotremes contain only five species, they are the platypus and four species of echidna. They are…

Q: Birds evolved from a group of bipedal dinosaurs known as theropods. True or false?

A: The question is asking whether birds evolved from a group of bipedal dinosaurs known as theropods.

Q: Search the Internet about the evidence suggesting that birds and dinasours are closely related. If…

A: Birds are evolved from theropod dinosaurs which  share over 100 trait. Scientists discovered that…

Q: What is the DNA analysis and fossil records of the animal aye-aye

A: The scientific name of aye aye is daubentonia madagascariesis.  Aye aye have low population density.…

Q: Which well-known group is ancestral to all living birds? What evidence in the fossil record supports…

A: Fossils are the prime pieces of evidence of evolution. It includes the remnants or impressions of…

Q: are birds such as cassowaries and ostriches the closest links we have to velociraptor dinosaurs or…

A: Aves is the name of other class which birds belong and its its forelimbs are modified into wings .…

Q: In what present-day country was the oldest known fossil of a primate found?

A: Fossils are the traces, remnants or impressions of an organism of past geologic ages that has been…

Q: Scientists often use a cladogram such as the one below to illustrate evolutionary relationships.…

A: Mammals and Reptiles diverged in the carboniferous period which occured aprroximately 325 million…

Q: In the phylogeny below, the origin of which trait could be indicated by the letter B? A single…

A: Phylogenetic tree is a branching diagram to understand the evolutionary relationships among…

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: In what ways did theropods differ from modern birds? Give at least two differences.

A: Introduction  Evolution is the key process which regulates the survivability and continuity of…

Q: Which group of mammals have live birth but lack a placenta?   Group of answer choices Metatheria…

A: The right answer option is Prototheria.

Q: Until recent discoveries suggested otherwise, animals existing before the Cambrian period were…

A: Cambrian explosion took place nearly 541 million years ago in the Cambrian period. Fossil records…

Q: Birds have all of the following features except: they have external fertilization always have two…

A: Birds are a type of vertebrates which can fly.

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.