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

Q: Birds are supposed to be the dinosaurs' closest relatives. List and explain five reasons why the…

A: Feathers, toothless beaked jaws, the laying of hard-shelled eggs, a rapid metabolic rate, a…

Q: Using analogy / comparative method, describe what the first hominin who moved out of the trees and…

A: * Modern humans originated from Africa and evolved from recent common ancestor, Homo erectus. *It…

Q: Based on the figure of chordate phylogeny, which of the following are examples of homoplasies?

A: Homoplasy is an evolutionary phenomenon in which an organism has similar structures from different…

Q: Which of the following are homologous structures? Select all that apply.

A: The structures of different organisms can be similar to one another in two aspects - 1) Similar with…

Q: Was Archaeopteryx the firstbird?

A: Archaeopteryx is a fossil. This is an extinct species; it does not exist anymore. The fossil was…

Q: Best on the phylogenetic tree shown here, which organisms are most closely related to dinosaurs and…

A: The phylogenetic tree helps to identify evolutionary relationships among various organisms.  The…

Q: What is convergent evolution? Use evidence from the trees to explain how the Anolis lizards are an…

A: Introduction phylogeny the history of the evolution of a species or group, especially in regard to…

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 is the most probable primitive condition for the whole group (node A)? O a. Claws O b. Nails O…

A: A cladogram is a cladistics diagram that depicts relationships between species. A cladogram, on the…

Q: To describe: The information that has been revealed by present methods about the successors of…

A: Dinosaurs thrived for more than 100 million years, and there is no certainty behind dinosaur…

Q: Tiktaalik and Protarchaeopteryx are examples of transitional forms. In paleontology, what does…

A: Paleontology, usually spelled palaeontology or palaeontology, is the scientific study of life…

Q: Birds are often referred to as “living dinosaurs.” Is this accurate? Why or why not?

A: A phylogenetic or evolutionary tree is defined as a branching diagram showing or depicting the…

Q: what morphological features are present retained by both descendants of marbled salamander and…

A: Evolution is descent with modification. All organisms, somewhere during the course of evolution,…

Q: Why did ancestral mammals survive the asteroid impact while the dinosaurs did not?

A: If an asteroid coming on earth and breaks into fragments, any fragment larger than 35 meters across…

Q: What does hindlimb shape say about the ancestry of dolphins and other cetaceans?

A: One of the orders of Mammals is Cetaceans that had originated about 50 mya in Eocene epoch. This…

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

A: Generally, birds are specialised group of vertebrates which have evolved from reptiles during…

Q: What caused the extinction of the dinosaurs?

A: Dinosaurs represent the giant reptiles that evolved on earth 245 million years ago. They come under…

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: Derived characters are traits that   characterize the last common ancestor that a particular…

A: Character is a feature or characteristic of an individual like height, colour, shape etc.  A trait…

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: How might we know what the common ancestor of frogs and humans may have been? Where could we look…

A: Similarities in characters of two organisms definitely suggest that they had some common ancestor…

Q: The following image is from a scientific publication by paleontologist Niel Shubin, who was part of…

A: Homologous structures such as organs or bones are the structures which posses similar anatomical…

Q: The phylogeny shows types of feathers below, and how early birds are related to each other. praptor…

A: Answer :- Option (D) is correct. - The common ancestor to Microrapter , Sinosaurus , and other…

Q: If the genus Australopithecus is considered an outgroup, what are THREE shared derived characters of…

A: Cladograms(phylogenetic trees) are graphical charts that depict the hypothetical correlations…

Q: Triops evolved 350 million years ago and its morphology has not changed much throughout time. Why do…

A: To explain  Why Triops evolved 350 million years ago and its morphology has not changed much…

Q: Discuss: How old are the oldest camel fossils shown? How has the skull changed over time? How have…

A: Evolution is the gradual change in forms of life throughout the world. Plants, animals, microbes all…

Q: 5. 5. Draw a phylogeny the following taxa: shark; tuna; frog; lizard; mouse; whale. On your…

A: Evolution solved the challenge by developing the cellular differentiation process, which resulted in…

Q: Looking at the skulls, can you determine which is a direct ancestor and which is a ‘cousin’?

A: The skull is a bony structure that forms the head in vertebrates. It supports the structures of the…

Q: In studying a species of fish, a structure is discovered that has no apparent function. If this is a…

A: Vestigial structures are anatomical structures of organisms in a species which over a period of time…

Q: Humans are heterodonts, which means they Group of answer choices have different types of teeth…

A: Human beings are highly evolved organisms that have a better thinking capacity. Humans share more…

Q: What is the difference between an ancestral character and a shared derived character?

A: Systematics is used to construct a cladogram, which is an evolutionary tree, which depicts the…

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: 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 most recent common ancestor for primates ?

A: A phylogenetic tree is a form of visual representation of the relationship between different…

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: Fill in the missing table and  construct a cladogram for the group Character A-outgroup Amphioxus…

A: The cladogram is a evolutionary tree that graphs the familial connections among organisms. ,…

Q: Reading a Phylogenetic Tree Use the tree below to answer the questions. A Cladogram Fig. 12.1…

A: When dendrogram is constructed on the basis of phylogenetic similarities and dissimilarities among…

Q: How do the Miocene fossil primates differ from the Oligocene fossil primates? Thank you so much!!

A: INTRODUCTION     All these Primate may reveal for adaptations for climbing the trees. The primates…

Q: Reading a Phylogenetic Tree Use the tree below to answer the questions. A Cladogram Fig. 12.1…

A:

Q: Hardosaurs like edmontosaur the front feet do they have name or description how they look? It looks…

A: The comb-crested hadrosaurid (duck-billed) dinosaur Edmontosaurus regalis is a species of…

Q: What is present on the feet of birds which provides more evidence for their evolution from reptiles…

A: Archaeopteryx lithographica is one of the first birds that is considered as the missing link between…

Q: How is the traditional animal family tree similar or different from the  phylogeny reflecting…

A: Phylogenetic trees represent evolutionary relatedness between living organisms. These relatednesses…

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: What is dinosaur

A: Introduction  Reptiles are animals belonging to the Reptilia class, a paraphyletic grouping that…

Q: Directions: Use the cladogram below to answer the questions Sharks Ray-finned fish Amphibians…

A: Need to answer based on cladogram- used to express hypothetical relationships between group of…

Q: If Table 1 were used to name Amphibian A and Amphibian B from Table 2, at which step would the…

A: The correct answer is J. Step 4

Q: Can you ID ancestral skulls and non-human primate skulls? At least, which is older?

A: there are very stark differences between the Homo and primate skulls.  the table below helps us to…

Q: Do you think chickens and other birds can be descendants of other dinosaurs?

A: Birds are defined as the warm blooded animals that belong to the class Aves of vertebrates. birds…

Q: ontogeny in phylogenetics? option a.) scientist gathers physiological traits and genetic data about…

A: Phylogenetics is the study of relationship between biological entities Phylo means a tribe, it could…

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.