the animal kingdom was divided into 5 main clades.  Which clade has animals without true tissues   Question 7 options:   a)  Cnidaria   b)  Porifera   c)  Bilateria   d)  Ctenophora

Q: You discover a new species of animal that has a backbone running down the length of its body. What…

A: The Animal Kingdom is divided into 10 different Phyla. Each of these has some basic characteristics…

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

A:

Q: What are two major challenges for animals living in terrestrial environments and what is the…

A: The area on the earth which represents land is terrestrial environment . It comprises of :-  I )…

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: What is a primate and why do anthropologists consider it important to study them? What features do…

A: Primates is belong to those groups of animals, thats under included humans, monkeys and animals like…

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 genetic changes led to the increasing complexity of the arthropod body plan?

A: Answer- Arthropods are among the most adapted phyla on the planet. There are many factors…

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: What type of data is primarily used to determine the existence and appearance of early animal…

A: Animals are multicellular eukaryotic organisms. They possess a well-defined growth pattern that…

Q: Tiktaalik and Protarchaeopteryx are examples of transitional forms. In paleontology, what does…

A: Paleontology, usually spelled palaeontology or palaeontology, is the scientific study of life…

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: Which class of tetrapod animals famously experienced an adaptive radiation into previously unused…

A: The oldest near-complete tetrapod fossils, Acanthostega and Ichthyostega, date from the second half…

Q: 1. The first terrestrial vertebrates to evolve, with lungs, tetrapod limbs, and a three-chambered…

A: The geological time scale is divided into different era, periods and ephos. The evolution of…

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: How might we know what the common ancestor of frogs and humans may have been? Where could we look…

A: Similarities in characters of two organisms definitely suggest that they had some common ancestor…

Q: The following image is from a scientific publication by paleontologist Niel Shubin, who was part of…

A: Homologous structures such as organs or bones are the structures which posses similar anatomical…

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: by comparing and contrasting the physical features of a shark, guitar fish and the sting ray, what…

A: We all know that the largest shark is the whale shark (Rhiniodon typus) with length of 13-39 ft and…

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: You discover a new species of animal that has a backbone running down the length of its body. What…

A: Introduction:- From the base of the skull to the tailbone, there are bones, muscles, tendons, 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: are the four categories of lifestyle adaptations used to define the genus Homo?

A: early humans lived in caves or simple huts or tepees and were hunters and gatherers. They used basic…

Q: What do the terms Theria, Metatheria, Eutheria, Monotremata, and Marsupialia mean? List mammals that…

A: Mammals are a class of the phylum Chordata and the characteristic feature of this class is the…

Q: How many anatomical characteristics do cetaceans share with mammals and fish?

A: Introduction: Those vertebrates that have a memory gland and give birth to the young ones instead of…

Q: what  is a carapace?

A: Numerous animals have a protective covering on the outside of their bodies. Some of the animals with…

Q: What was the “big revelation” about Neanderthals and humans revealed by genetic studies?

A: Neanderthals and humans are hominins. Neanderthals are the extinct ancestors of humans and they…

Q: the common ancestor of Cnidarians were an open-ocean jelly fish, what would you infer regarding the…

A: Cnidarians is a phylum which comes under the main classification animilia  They are aquatic animals…

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: Archaeopteryx is a significant fossil find because it gave hints to the evolution of the following…

A: Fossils refer to remains or traces of past life preserved through natural processes. Imprints,…

Q: What are examples of the following groups of vertebrates: Chondrichthyes, Actinopterygii,…

A: The vertebrates are a group of animals that have a spinal cord that is enclosed by cartilage or a…

Q: How could morphological data alone lead biologists to group animals into erroneous evolutionary…

A: Evolutionary trees can be used to depict ancestor species and their descendants' evolutionary…

Q: A) Draw a phylogenetic tree for the major phyla of the animal kingdom. Label the appropriate branch…

A: Phylogenetic tree is a diagram that shows the pattern of evolution of a group of organism based on…

Q: If you were to build a phylogenetic tree of living animals, which of the following derived…

A: Introduction :- Deuterostomes are an animal clade that undergoes deuterostomy during embryonic…

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: Draw a simplified animal tree of life, indicating therelationships among sponges, cnidarians,…

A: Evolution is defined as the change in the characteristics of a particular species/organism over…

Q: why is it that higher forms of animals are bilaterally symmetrical? provide scientific explanations.

A: In bilateral symmetry, the body can be divided into two equal halved through one axis only.

Q: Hardosaurs like edmontosaur the front feet do they have name or description how they look? It looks…

A: The comb-crested hadrosaurid (duck-billed) dinosaur Edmontosaurus regalis is a species of…

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: Fossil records had given scientists a glimpse of the past, to what extent these fossil records…

A: Fossils are the preserved remains or traces of animals, plants, and other organisms from the past.…

Q: What types of molecular and morphological changes occurred along the different branches that led to…

A: Answer: Introduction: Tetrapods (means four limbs) evolved from a group of animals called as the…

Q: Make a cladogram that includes the following groups of fishes: chon-drosteans, elasmobranchs,…

A: The cladogram is a diagrammatic relationship between species. But it didn’t represent an…

Q: If Table 1 were used to name Amphibian A and Amphibian B from Table 2, at which step would the…

A: The correct answer is J. Step 4

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: The diagram shows a phylogenetic tree. Ray-finned fish Sharks Amphibians Primates Rabbits Crocodiles…

A: Phylogenetic tree It refers to a branching diagram that displays the evolutionary relationships of…

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.