The name for the monophyletic group of animals that includes all reptiles, mammals, birds, and amphibians is the ----- . This group is characterised by the evolution and shared presence of  ----- . However, some members of this group do not possess this feature because of a process called  -----  loss. Snakes are famously legless reptiles, but other reptiles have also lost their limbs to varying degrees. Within the family ---- , we see species that have no limbs and some that have only hind limbs. In the genus ---- we can find species that have fully pentadactyl limbs, as well as those with only 3, 2, or 1 --- per foot.

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: Neanderthals DNA and behaviors show uS the ways in which they adapted to their environment over…

A: Introduction:- The process of development of present day Homo sapiens through different stages like…

Q: Sawfly larvae differ from Lepidoptera caterpillars | by having more prolegs. | by having…

A: Sawfly larvae ( belonging to order Hymenoptera) are immature stages of wasps or bees that have…

Q: You have found fossils of a new species of ape that walks upright. After 11 additional years in the…

A: The whole branch of biology which deals with  establishing the relationship between two species is…

Q: ich of the following traits is a synapomorphy in humans, a characteristic not shared with mates?…

A: Synapomorphy is a characteristic which is present in the ancestral species and shared exclusively in…

Q: Humans are members of the phylum chordata. As such they have a notochord. The notochord in humans;…

A: All the chordates possess the following diagnostic characters either in the embryonic or adult…

Q: The Old World Monkeys and Gibbons both belong to the Old world monkeys New world monkeys Lorrises…

A: A clade is also known as a natural group or monophyletic group. This refers to a group having a…

Q: On the back of the human skull, there is a small bump, below which is an opening where the spinal…

A: Homo, a genus of the family Hominidae characterized by a relatively large cranial capacity, limb…

Q: Based upon the mutation that your dinosaurs have, are there any environmental changes in which the…

A: Mutations are changes that occurs in the deoxyribonucleic acid (DNA) sequence, either due to…

Q: Which arthropod class is the most diversified animal group of the planet? How can this evolutionary…

A: Arthropods have jointed appendages. They are characterized by wings and  3 pairs of legs.

Q: Multiple choice: Which of the following is false regarding mammals?   --Mammals evolved from the…

A: Mammals, belonging to the class Mammalia, are characterized by several distinctive features that set…

Q: Traits that are specialized to a particular lineage, and not widely shared among remotely related…

A: A phylogenetic tree is a diagrammatic representation which explains the concept of evolutionary…

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A: The formula that can be used to calculate the frequency of alleles is the Hardy-Weinberg formula.

Q: Can you suggest why, during the evolutionary history of animals, there has been a tendency for…

A: Answer of the question given below...

Q: ____ genes are regulated by segmentation genes and control the development of specific structures…

A: 1 blank- Gap genes 2 blank- homeodomain

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: eptiles came to dominate the land in the _________ Period of the Paleozoic Era.

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: Amphibians like Rhinella marina (a.k.a. cane toad) harbour both more (quantitatively) and a greater…

A: Amphibians is a class of animals from the phylum chordata. These animals live in moist environments…

Q: Development of an animal is controlled by the genes that are expressed during development. What…

A: Hox genes are members of the homeotic transcription factor family that play a key role in…

Q: Some people state that the dinosaurs have not “gone extinct,” they are with us today. What evidence…

A: According to many evolutionists, dinosaurs are not really extinct but are rather feeding at our bird…

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A: Sea turtles are otherwise called marine turtles. They are of different sizes,shapes,and colors. They…

Q: Which of the following are documented effects of Hox genes? Choose all that apply.  Group of answer…

A: Hox Genes are the homeotic genes which regulates the development of the specific body organs,…

Q: Define senescence. How would you measure senescence?  compare and contrast the two basic theories on…

A: The process of the growing old. In the  biology, the  senescence is a process by which the  cell…

Q: The only primates with prehensile tails are New World Monkeys. True or False

A: New world monkeys are called Platyrrhini. New world monkeys diverged from old world monkeys…

Q: What makes Australopithecus sediba particularly interesting? It evolved a very large brain. It shows…

A: Australopithecus sediba is an old species of australopithecine found at Malapa Cave, Support for…

Q: Why is it likely that Hox genes have played a major rolein the evolution of novel morphological…

A: The Hox proteins are involved in the transcription factor discovered from Drosophila which govern…

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…

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A: INTRODUCTION Immune system This the the group of organs and process that gives protection to the…

Q: What are three most important point in Anuran’s metamorphosis, that you find the most interesting…

A: Metamorphosis is the change of shape during an animal's life. There are some destructive and…

Q: Climate change is affecting the chemistry of the world's oceans. In particular, the ocean water is…

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Q: According to the film, "Your inner reptile," which of the following did we inherit from our…

A: The film 'Your Inner Reptile' is part of the series 'Your Inner Fish' which explores the…

Q: Draw a phylogenetic tree that has these 8 animals: Human, Insect, Sponge, Jellyfish (jelly),…

A: Animals are multicellular, heterotrophic eukaryotes. Sponges do not have true tissues or symmetry.…

Q: (1) What are the 3 evolutionary tendencies that separate primates from other mammals? Why are they…

A: The zoological class Mammalia comprises lorises, marmosets, chimpanzees, tarsiers, apes, and mankind…

Q: Homo neanderthalensis, Australopithecus afarensis, Homo habilis, and Homo erectus. According to…

A: Fossil records and discoveries play a crucial role in our understanding of human evolution. Fossils…

Q: 1) Homo habilis use tools of a type called ..................... while Homo ergaster use tools of a…

A: Homo georgicus is an extinct species of early humans that were discovered in Dmanisi, Georgia in…

Q: All mammals have tailbones and muscles for moving a tail. Even humans have a reduced tailbone and…

A: Evolution is the gradual progression in the inherited traits of natural populations over many…

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: While it may not genuinely be a distinct species, Homo heidelbergensis is generally thought of as a…

A: This data tells us that Homo heidelbergensis is frequently thought of as a species that helped to…

Q: fossils from the paleozoic era have been found and it is understood that fossils of insects from…

A: Fossils hold the proof. Researchers realize that dragonflies with wingspans as wide as a hawk…

Q: Fill in the blanks with synapomorphic, symplesiomorphic, or neither Mesoderm is a ___ feature of…

A: Synapomorphy refers to a character shared by two or more taxonomic groups and it is derived from…

Q: ses, tapirs, rhino-

A: A phylogeny or the phylogenetic tree is a diagrammatic representation of the evolutionary descendent…

Q: Evidence suggest that feathers originally evolved for some function other than facilitating flight.…

A: Feathers were initially evloved before birds and for reasons other than flight.They were functioned…

Evolutionary lineages

An evolutionary lineage is a series of populations of organisms that descend from a common ancestor. Each species in the lineage is the direct consequence of evolutionary change from a common ancestor. A phylogenetic tree is generally used to display lineages visually. Lineages are components of the phylogenetic tree of life. Molecular systematics procedures are widely used to predict lineages.