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

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

A:

Q: How did the modern humans evolved when it comes to physiological aspect? Give at least 3 and…

A: (You have posted multiple question, thus herewith I have solved first one, please post rest of the…

Q: Do these animals share any structural similarities inside their wings that would suggest they are…

A: The analogous structures are found in the organisms that have evolved through different paths. There…

Q: . When during the history of life did vertebrates evolve?

A: Earliest Vertebrates evolved 550 million years ago.

Q: Which group of unikonts is structurally and genetically most similar to animals?

A: Unikonta is a supergroup which includes a range of protists along with animals and fungi. It is the…

Q: In what ways do the genera Australopithecus and Homo differ?

A: Genetic evidence showed that about 7-10 million years ago, humans were evolved from chimpanzees. The…

Q: What are the key events in the evolution of the animals?

A: Evolution can be defined as the change in the characteristics of species over several generations…

Q: How Long Might Neanderthals Have Co-Existed withModern Humans (Homo sapiens)?

A: homo sapiens and neanderthals shared common ancestry 0.5 million years ago and somewhere a split…

Q: At the end of which geological time period did the Starfish become extinct?

A: Biodiversity is diversity of various living organisms on the planet that it contains different types…

Q: What is the correct order of appearance in the fossil record, starting with the earliest: reptiles,…

A: Vertebrates comprise mammals, birds, reptiles, amphibians, and fish, a widely recognized category of…

Q: What evidence is there that dinosaurs brooded their eggs and tended their young long after they…

A: Dinosaurs are an assorted gathering of reptiles of the clade Dinosaurian. They initially showed up…

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: 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 are the six criteria used to build a complete evolutionary branch of vertebrates?

A: The earliest vertebrates were jaw less fish which lived between 500 and 600 mya. They had a cranium…

Q: How does the need for dietary vitamin C show that humans are more closely related to other primates…

A: Vitamins are biomolecules that are required by the body for normal functioning and repair of…

Q: Explain the Evolutionary Trends Among Animals ?

A: Evolutionary Trend is defined as a steady evolution of trait in a given adaptive direction in…

Q: What are the five classes of vertebrates? To which of these do human beings belong?

A: Vertebrates: These are those organisms that have a spinal cord and it is surrounded by bone or…

Q: According to the latest researches in Physical Anthropology, what is the relationship between…

A: Physical anthropology is also known as biological anthropology. It is a branch which focuses on the…

Q: what were the earliest members of the genus Homo?

A: Human evolution is the evolutionary path that led to the development of anatomically modern humans,…

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: Why do you think the ancestors of the extant amphibians became successful in adapting from the life…

A: Thank you for the question  Answer : Amphibians are a group of vertebrates that can live on land and…

Q: HOW MANY YEARS AGO DID THE DINOSAURS BECOME EXTINCT?

A: A timeline based on the rock record of the earth is called a geologic time scale (GTS). It is a…

Q: Does vertebrates evolved from a common ancestor? Exlain your answer.

A: The vertebrates include humans and all other backboned species, as well as a handful that has no…

Q: Explain if cetaceans evolved through change over time from ancestral mammal that lived on land.

A: Cetaceans are aquatic marine mammals like the species of whales and dolphins. They belong to the…

Q: isa Nhich of the animals represents the oldest creatures in terms of evolutionary history?

A: Evolution is the process of changes in the characteristics of a species over many generations and…

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: How and why did sponges develop skeletons, given that they were the first animals, there were no…

A: Sponges are the simplest form of multi-cellular organisms with structural complexities. They have…

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: What is so modern about moderns humans?

A: BASIC INFORMATION  Evolution of modern human took place after series of events. The events are as…

Q: Did dinosaurs and humans ever exist at the same time?

A: Homo habilis, which existed between 2.4 and 1.4 mya in Eastern and Southern Africa, is among the…

Q: Which position would indicate an organism with a bony skeleton? Which position would indicate the…

A: Question - 1- Which position would indicate an organism with a bony skeleton? Question - 2 - Which…

Q: What are three things a fossil can tell you about an animal?

A: Introduction A fossil is a remnant of a non-living plant or animal that has been preserved or…

Q: what do fossils tell us about the evolutionary history of the animal kingdom?

A: The traces or remains of an organism that once lived on Earth is termed as fossil. Fossils somehow…

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: Did humans evolve from chimpanzees? Explain.

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

Q: Is the frog an ancestor of humans? Explain.

A: Despite belonging to different classes with the animal kingdom frogs(class: amphibia) , humans (…

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: In what ways did mammals become modernized during the Neogene Period?

A: Neogene is a geological period that spans around 20 million years from the Paleogene period end to…

Q: What valuable information can an archaeologist gain from understanding the connections between…

A: Archeology gives us the chance to find about past culture through the investigation of artifacts,…

Q: What are the largest animals ever to have lived on Earth? From what animals are they thought to have…

A: The branch of biology that deals with the structure, function and evolution is called zoology. It…

Q: List three groups of adaptations that guided vertebrate evolution, and explain how each has…

A: Introduction  Adaptation are the changes in the physical and behavioural characteristics which helps…

Q: Based on anatomy, fossil, embryos, and DNA what are the closest living relatives of cetaceans, fish…

A: Cetacean, any member of a completely aquatic cluster of mammals usually referred to as whales,…

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: which is the sister group of vertebrates?

A: All fishes, amphibians, reptiles, birds, and mammals are classified as vertebrates. These animals…

Q: Elaborate about the origin and evolution of earlier vertebrates?

A: Vertebrate is considered a subphylum in the kingdom Animalia, which comprises animals with the…

Animal Diversity

Nematodes are commonly known as roundworms. They are free-living, very tiny organisms. They have an elongated and tubular body. These organisms have a nervous system and are mostly act as parasites to both animals and plants.

Platyhelminthes

Platyhelminthes are also known as "flatworms" because as they are dorsoventrally flattened from head to tail. They are invertebrate, soft-bodied, acoelomate, unsegmented and have bilateral symmetry.