QUESTION 3: What do the words acoelomate, pseudocoelomate, and coelomate mean?  What is the evolutionary trend between these three categories

Q: Question 21 Which of the following is a structure used in gas exchange in insects? chelicerae…

A: Insects belong to the phylum of Arthropoda. Insects have characteristics like an exoskeleton and…

Q: Question 4 Select 4 organisms from any of the major phyla listed below. You are required to select…

A: Introduction A phylum is a large collection of animals or plants that share one or more fundamental…

Q: QUESTION 21 1. Which of the following vertebrate groups is jawless? Lepidosauria Conodonts Aves…

A: Jaws were an important evolutionary structure which helped the animal to chew the food and convert a…

Q: Question 11 Chordates typically have O a notochord. O radialcleavage. All of the choices are typical…

A: Answer: C (All of the choices are typical chordate features)

Q: Animals in the phylum Mollusca exhibit (choose the correct answer) Question 7 options:…

A: The phylum Mollusca is the second-largest animal phylum. The molluscs include many familiar animals,…

Q: 25. Which phyla are mostly filter feeders and lack true tissues? Group of answer choices a.Nematoda…

A: ▪︎Kindom of animals is divided into invertebrates ( without backbone) and vertebrates ( those  with…

Q: 1. For how long has there been life on Earth? 2. For what percentage of time has life existed on…

A: The geological time scale depicts the various time periods throughout the history of the earth…

Q: QUESTION 13 What is the most probable primitive condition for marsupial mammals (node D)? a. Claws…

A: Introduction   Marsupials are any members of the mammalian infraclass Marsupialia. Premature birth…

Q: Question 3. Describe structurally the ancestral protist group to plants. a. Body plan (anatomies…

A: Protists can be called as ancestors to :  Plant  Animals  Fungi  As they do not fall in any of the…

Q: Aegyptopithecus has features in common with modern monkeys, such as limbs of equal length with…

A: Humans are different from other animals in phylogeny in many characteristics such as bipedalism, the…

Q: Question 10: What is the most probable primitive condition for the ancestors of modern primates…

A: A cladogram is an evolution tree that depicts species' ancestral connections. Previously, cladograms…

Q: Question 14 Which of the following is not one of the means for fossilization? Ice Tar None of the…

A: Fossilization is a process of becoming a fossil. In fossilization, only the hard parts (like bones,…

Q: QUESTION 16 1. Which of these traits is NOT shared by vertebrates and cephalochordates? Structural…

A: Cephalochordata is a group of marine animals having fish-like elongated bodies. The body is provided…

Q: QUESTION 11 What is the most probable primitive condition for all mammals (node B)? Claws O Nails…

A: Marsupials include all the groups of mammals under metatherians that nourish the young one inside…

Q: Which statement is FALSE?   Question 81 options:   The evolution of multicellularity took place…

A: Introduction :-    Option A is correct. Explanation :- This is because About 3.5 billion years…

Q: An unidentified animal is noted to have simple tissues and possesses specialized cells called…

A: Nematocyst  are minute, elongated, or spherical capsule produced exclusively by members of the…

Q: 17) The distinguishing characteristic of the animals known as tetrapods is that they all Group of…

A: The correct option is  have four limbs and are adapted for life on land. Amphibians, reptiles,…

Q: 10. Which phyla has a notochord? Group of answer choices a.Porifera b.Chordata c.Nematoda…

A: option (b) is correct answer.

Q: QUESTION 1 What are the different types of phylogenies? Which one do biologists prefer and why?

A: We are giving the answer for the first question for second pl repost

Q: Which of the following is NOT a tetrapod? Group of answer choices Lungfish Snake Legless lizard…

A: Gnathostomes are group of vertebrates , which have jaws . this division is divided into pisces and…

Q: QUESTION 2 Approximately when did living things first appear on land? O 4.75 billion years ago O 3.5…

A: The age of the earth is estimated to be about 4.54 billion years. When the earth was formed for the…

Q: QUESTION 15 1. What might you call a group containing only mammals, birds, and chondricthyes?…

A: Mammals,birds and chondrichthyes can be grouped under Paraphyletic. Monophyletic group includes all…

Q: For about how many years of geological time have the dinosours existed on earth?? Did dinosours…

A: Geological time scale divided the prehistoric earth into four eras based on the the environmental…

Q: discuss the phylogeny of invertebrates and key evolutionary events (i.e. going from the simple…

A: PHYLOGENY OF INVERTEBRATES  Inspite of the differences in the structure and the form of different…

Q: Question 1. What is the most recent estimated time of divergence between invertebrates and…

A: The evolutionary studies are based on fossil samples and molecular analysis. The evolution of…

Q: Question 6. You create a phylogeny of 3 species- one is a green plant, second one is a green algae…

A: Phylogeny is the study of the evolutionary history of living things. It's a field of biology that…

Q: QUESTION 5 Kingdom Fungi and Kingdom animalja are heterotrophic and show motility. O True O False…

A: Over repeated generations, evolution is explained by variation in heritable traits of different…

Q: QUESTION 3 Which of the following is NOTa characteristic of all chordates? O Bilateral symmetry O…

A: Chordates is the phylum which consists of large group of animals including vertebrates, lancelot…

Q: Questions: 1. If you discover a new organism that is ectothermic, contains lungs to breathe and has…

A: According to our guideline we can answer only the first three subparts of a question. So, upload the…

Q: Question 18 What is shown in this illustration? -bil stongly curved . ibis bill elongated - bill…

A: Classifying a wide range of organisms on the basis of morphological similarity or close…

Q: concerning possible evolutionary relationships to other phyla. Cycliophora & Gnathostomulida

A: These belongs to platyzoan phylum, and is based on single genus symbion. They are different from all…

Q: The most accurate phylogenies use…   a. Analogous characteristics   b. Evolutionary reversals…

A: The history of evolutionary development of a species or a group of organisms is known as phylogeny.…

Q: Question 29 Sponges A Cnidarians Ancestral colonial protist Flatworms Molluscs В Annelids Nematodes…

A: Theory and practice of classifying organisms is termed as taxonomic. The word taxis means…

Q: Question 1 Before classifying insects into different orders, review the larger classifications for…

A: The living world is made of numerous organisms. These organisms along with the biotic factors make…

Q: Question 2 of 12 Which of the following is NOT true regarding nematodes? Select the correct…

A: The nematodes are roundworms that are parasitic and are also found in soil and marine ecosystem.

Q: Incorrect Question 6 Which conditions would NOT lead to good preservation of a dead hominin…

A: Ans is-- Dying in an open grassland that is seasonally dry or wet.

Q: Select the statement which best describes the Kingdom Animalia   Question 12 options:   All…

A: The scientific classification of animals begin in the late 18th century. At that time animals were…

Q: Question 16 The following table shows the traditional taxonomic ranks of classification for the bald…

A: Taxonomy is the branch of science which deals with classification of organism.

Q: these are major evolutionary transformations in animals, except a. tube within a tube plan b.…

A: Introduction :- Evolution is a slow , gradual and a never-ending or continuous process. There are…

Q: What are the general characteristics of amphibians?

A: Amphibians are a class of phylum Chordata that live both on land and in water.

Q: Please help me, previous tutors got it wrong as you can see, its not a graded question its just for…

A: Animal phylogeny is the rapidly changing field for the biologists. Even if the members of animal…

Q: 49. What 2 problems do alpine animals have to deal with? As a result, what types of animals do you…

A: Tundra is cold region and is divided into three types :- a) Alpine  b ) Artic  c ) Antarctic  All…

Q: D Question 4 Which mass extinction led to the disappearance of the dinosaurs? O Triassic O…

A: The recurrent rise and disintegration of ice sheets and glaciers driven by the Milankovitch cycles,…

Q: Question #1 What is the function of semicircular canal? Question #2 What is the fate of…

A: Semicircular Canal is located in the inner ear. There are 3 semicircular canals - anterior…

Q: please help me, double check your answers previous tutors got it wrong.

A: The phylum Echinodermata is an extremely large, well-known phylum containing many familiar…

Q: QUESTION 21 Which answer is not a trait associated with primates? 1. Stereoscopic vision O2.…

A: Primates are group of animal that are mammals which includes monkey, apes, chimpanzees, lemurs and…

Q: QUESTION 1:  What are the four distinguishing features of chordates?

A: Ans- The presence of a post-anal tail, a notochord, a dorsal, hollow nerve cord, and pharyngeal…

Q: QUESTION 19 True or false: All skeletal remains are fossils. 1. True O2. False QUESTION 20 The…

A: Geological time scale is the calendar for events in Earth's history. It is subdivided into eons,…

Q: ANNELIDS What was the significance of segmentation and the presence of true coelom in their…

A: Annelid body is made up of a number of repeating units, or segments, called as metameres.…

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.