An example of paedomorphosis would be a ____. salamander that becomes sexually mature while still retaining its gills moose that has antlers that are much larger than its ancestors primate with a smaller head than its ancestors duck that did not have webbed toes due to lack of the paracrine hormone gremlin

Q: Which of the following statements is true? --Sea stars are dioecious possess dermal branchiae and…

A: Sea stars are dioecious possess dermal branchiae and they have two stomachs.True: Sea stars are…

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: Which of the following are amniotes? Choose all that apply. Fish O Amphibians O Reptiles Birds…

A: This specialised membrane structures of certain tissues formed outside of the body of the embryo…

Q: Strepsirhine primates DIFFER from  anthropoids in that strepsirhines alone have: Group of answer…

A: Strepsirrhini and Anthropoids come under the same family which is PRIMATES. Strepsirrhini consists…

Q: Which of the following would result in offspring MOST genetically similar to its parent? a whiptail…

A: The correct answer is (d) an aphid arising from asexual reproduction. Asexual reproduction involves…

Q: Fill in the blanks w/ synapomorphic, symplesiomorphic, or neither: The presence of brain…

A: Synapomorphic This characteristic is shared by certain taxa but not by others because the former…

Q: Insects display an incredible diversity of body forms and ecological roles. Some insects undergo…

A: Insects are a diverse group of organisms that display an incredible array of body forms and…

Q: Snapping shrimp have evolved very rapid movements in the structures they use to capture prey. These…

A:

Q: In the following relationship tree, which of the organisms are most closely related?

A: Phylogenetic trees give us an idea about the relationship between different organisms. A…

Q: ge 1: Which statement is false according to the tree below? Hagfishes Agnathans Lampreys…

A: Answer : the statement which is false according to the tree below Is :    c)  turtles are more…

Q: Clams are a type of... Group of answer choices echinoderm cephalopod arthropod gastropod bivalve

A:

Q: WORD FILL INS a) All chordates as embryos have the start of gills- what are these called? ____…

A: Vertebrates, tunicates, and lancelets are all members of the Chordates (Chordata) family of animals.…

Q: Threespine sticklebacks that invaded freshwater lakes have lost their pelvic spines. What other…

A: Threespine sticklebacks (Gasterosteus aculeatus) are commonly found in the ocean. They are…

Q: insect'

A: Insect are small animal with six legs, two pairs of wings and a body which is divided into three…

Q: Which of the following characterizes hominoids? [Select] [ Select ] They all have large, complex…

A: Hominoids are also called apes, refer to the family of primates that includes 22 species including…

Q: Amphibians O All of the above Usually hatch in a less developed larval form O Migrate south to…

A: Amphibia is a class of vertebrates which spend some part of their life cycle on land and remaining…

Q: All Amniotes

A: Answer: AMNIOTES = These are the clade of tetrapod vertebrates that comprises reptiles , birds and…

Q: Flatworms show bilateral symmetry and some cephalization.   True   False   Some parasitic…

A: Carl Linneaus form animal kingdom along with other 4 kingdom. Under animal kingdom, animals are…

Q: Čompare the overall body plan of the prawn to that of an insect like a grasshopper (see drawings…

A: Along with arachnids, crustaceans (Prawn) and insects (grasshopper) belong to a similar…

Q: Why is Ammocoete Larvae important in the story of evolution? What does its anatomy shed light on?

A: The term "ammocoete" describes a primordial jawless vertebrate larva found submerged in mud and eats…

Q: Which of the following taxa includes myriapods that are wingless terrestrial mandibulate arthropods…

A: The question delves into identifying the taxonomic classification encompassing wingless terrestrial…

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: ILLUSTRATE THIS/ Mollusks are divided into three classes: Class Cephaloda (squids), Class…

A: Mollusks are the soft-bodied invertebrates and are abundant species belonging to the phylum…

Q: Which of the following is a characteristic of all chordates at some point during their life cycle?…

A: Kingdom Animalia includes the phylum Chordata. The phylum Chordata is further divided into three…

Q: Both insects and tetrapods evolved to live in terrestrial environments. What adaptations do they…

A: Both insects and tetrapods evolved to live terrestrial environments that is they are adapted to live…

Q: Of the following, which includes chordates that are NOT vertebrates? O Myxini Echinodermata…

A: Answer : Option A & D are correct :  Myxini & Urochordata

Q: is the presence of notochord considered as plesiomorphic character chordates? yes or no?

A: no,the presence of notochord are not considered as plesiomorphic character chordates. It is…

Q: While the aminotic egg offers many advantageous, it also has limitations. Which of the following is…

A: The evolution of the amniotic egg is one of the most important evolutionary steps which leads to the…

Q: In an ancestral chordate like the lancelets the Pharyngeal slits function as whereas in humans the…

A: Pharyngeal slits Pharyngeal slits are a third chrodate feature, these are openings between 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: Annelids (include leeches, earthworms and polychaete worms/ use their coeloms as hydrostatic…

A: Annelida is a group of segmented worms. They have a long and segmented body. Annelids are…

Q: 4. For each characteristic, check all the classes that it applies to Pre- Class Class Class Class…

A: Evolution refers to the continuous change in the heritable characters of an organism over several…

Q: The phylum Chordata only contains vertebrate species.   Question 4 options:   True   False The…

A: The animals are classified under the kingdom Animalia. This kingdom is further divided into multiple…

Q: The larger eye sockets in the skulls of Acanthostega and Ichthyostega suggest that they were ______.…

A: The group of eukaryotic organisms that are heterotrophic and multicellular is called animals. There…

Q: Scientists from Temple University used radioactively “tagged” carbon dioxide to determine that…

A: The researchers used salamander eggs infected with algae to study the role of algae present in the…

Q: Which of the following classes includes the only type of echinoderm that has a calyx on a stalk?…

A: The phylum Echinoderms comprises marine animals that are distinguished by their spiny skin, water…

Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.