Fill in the blanks with synapomorphic, symplesiomorphic, or neither Mesoderm is a ___ feature of chordates, and a ___ feature of vertebrates, but mesectoderm (neural crest) is a ___ feature of chordates, and a __ feature of vertebrates

Q: All of the following except which one are evolutionary trends among chordates repeated increases,…

A: The changes that take place during the course of evolution are called evolutionary trends.

Q: Identify the stage(s) of embryonic development in whichcross sections of all chordate embryos…

A: Embryology is the study of development and growth of fertilized egg(zygote) into mature embryo. The…

Q: Fossil evidence that many saurapod dinosaurs had feathers suggests that ____. flight is an…

A: In the course of evolution Dinosaurs are the important part. So according to the fossils the size of…

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: Skull parts are represented in only___ of the more than 100 genera of sauropods. (A) 20 (B) 24 36 D)…

A: A clade of saurischian dinosaurs, the sauropoda is referred to as sauropods. The features of…

Q: Hadrosaur are large and strong looking, couldn’t they at least try to defend themselves from…

A: Introduction :- Hadrosaurs are the animals belongs to the phylum chordata .They have few mechanism…

Q: Members of which of the following classes are endothermic, amnionic tetrapods? --all of the classes…

A: Endothermic creatures are those which are able to regulate the temperature of their bodies. They…

Q: The dorsal hollow nerve chord of chordates derives from the [Select ] * and is found v [Select ] Fto…

A: All the animals on the planet are classified under kingdom Animalia. The animals are classified…

Q: What characteristics is the ancestor of tetrapods thought to have had? Choose all that apply

A: Tetrapods  Tetrapods are the group of animals that have four legs. It the major group of animal and…

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: Scales of modern teleosts differ from the ancestral state in that they _____.     are thicker and…

A: They are the members of actinopterygians.  They are marked by the body rays on their fins.…

Q: Which of the following is not a synapomorphy of craniates?

A: Craniates are a group of chordates that includes many organisms that have a cranium or a braincase.…

Q: Echinoderms have _____. a. triangular symmetry b. radial symmetry c. hexagonal symmetry d.…

A: A major group of marine animals are echinoderms. They are known for their spine like skin. These…

Q: Bilateral symmetry is a(n) A B C synapomorphic ancestral claws derived analogous - trait for the…

A: A phylogenetic tree is a diagram demonstrating the evolutionary connections between a group of…

Q: What term should we use to decribe the evolution of body types in the Anole lizards?…

A: Anole lizards have been reported to evolve into similar forms on the various islands which are known…

Q: What are the most probable characteristics of the most recent com-mon ancestor of insects? What…

A: The members of phylum Arthropoda are collectively referred to as arthropods. Segmented body, the…

Q: When an organism exhibits ____________ growth, its fecundity ________ with age, until senescence.…

A: Correct answer: Option b determinate, decreases is the correct answer because in determinate growth…

Q: Nimravids Skeleton vs Siberian Tiger Skeleton vs Smilodon Necator Skelton Compare and contrast the…

A: Nimravids are a group of extinct carnivorous mammals that lived from the Eocene to the Miocene epoch…

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: Compared to eutherians, marsupial placentas are more highly developed. o marsupial nipples are…

A: Marsupials and Eutherians all have evolved from ancient mammals. Regarding their method for bearing…

Q: List four very different anti-predator adaptations used by different invertebrate deuterostomes and…

A: 1) sponges are protected from predators by their disagreeable taste and smell and by their hard…

Q: Bilaterally symmetrical animals have________embryonic tissue layers, known as________ ,___________,…

A: The embryo undergoes various types of changes in order to form a developing fetus. During the…

Q: Differences between vertebrates and other chordates include all of the following except:   other…

A: Chordata is an animal phylum. Chordates are characterized by presence of a dorsal hollow nerve cord,…

Q: Why is the evolution of the amniotic egg significant? Embryos are protected from predators.…

A: An amniotic egg is an egg which is terrestrially adapted egg and encased by a shell and…

Q: Match the animal taxa (group) to the correct adaptation. radial cleavage of embryo, do not develop a…

A: 1/ Radial cleavage of embryo, do not develop a yolk egg, must have a larval stage before adul: The…

Q: Which of the following things is/are true about this organism? Phylum Chrodata Subphylum Vertebrata…

A: This organism is Lancelet.  Diagrammatic view of lancelet internal structure. Classification of…

Q: Skull parts are represented in only of the more than 100 genera of sauropods. (A) 20 (B) 24 36 (D)…

A: Answer :- The vast, herbivorous sauropod dinosaurs, which flourished during the Mesozoic Era, are…

Q: In 1798, a stuffed platypus specimen was delivered tothe British Museum. Reports that it laid eggs…

A: Amniotes are described as the vertebrates that have a tendnecy to develop embryo in the amnion.…

Q: Animals with three tissues layers have other synapomorphies that differentiate them from…

A: Biology is the study of cells, tissues, organs, organ systems, organisms, species, and communities…

Q: Brachiopoda 1. А Testudines 2. B Osteichythes 3. С Aves 4. D Myxinoidea 5. E 6. F Rotifera 7. G…

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

Q: The __________ muscles add flexibility to reptilian lungs enabling them to efficiently expand and…

A: 1) The _____diaphragm_____ muscles add flexibility to reptilian lungs enabling them to efficiently…

Q: The elephant and the crocodile evolved from a common ancestor. Which characteristic do they have in…

A: Elephant belongs to the class Mammalia and crocodile belong to the class reptilia. But there are…

Q: All the following are general anatomical similarities for MOST primates, EXCEPT: Opposable thumbs…

A: The answer is option 1. opposable thumbs.

Q: Question 15 Which statement about chordates is ACCURATE? O Not all vertebrates have a distinct head.…

A: Chordates are a diverse group of animals that are defined by certain shared characteristics. These…

Q: Which of the following is NOT a defining chordate characteristic? O post-anal tail O vertebrae O…

A: Introduction Chordates belong to the kingdom Animalia. They are group of animals which include…

Q: wo key differences between the australopithecines and members of genus Homo

A: Introduction Australopithecus:- It is a genus of early hominins that existed in Africa during the…

Q: One trait that unites animals as a group is that they all __________. Choose all that apply.…

A: The kingdom Animalia consists of all animals. They are heterotrophic eukaryotic organisms having…

Q: Which of the following is not considered a key characteristic of vertebrates? Backbone O jaws skull…

A: Introduction Vertebrate's are the animals belonging to the subphylum Vertebrata, which is actually…

Q: “Fishapod” (or stem tetrapod) traits include everything except: Neck   Differentiated limb bones…

A: Tiktaalik roseae or Fishapod is considered to be the intermediate fossil between the fish and the…

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: