Which group of invertebrates is most closely related to vertebrates? a. cephalochordates b. echinoderms c. arthropods d. urochordates

Q: To what order do primitive mammals that lay eggs belong? A. Marsupials B. Craniata

A: The process through which an organism produces more of its own offspring is known as reproduction.…

Q: This limb is found in a member of kingdom animalia. The class/group that this limb matches to is: a)…

A: Limbs are appendages used for locomotion. Porifera stay attached to a substrate and don't move.…

Q: Which is part of a group of predatory insects? A. Isoptera B. Odonata C. Orthoptera D. Blattaria

A: Insects are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group…

Q: Reptiles are much more extensively adapted to life on land than amphibians because reptiles a. have…

A: Answer is b.)  lay eggs that are enclosed in shells.

Q: Write about amphibians.

A: A vertebrate is a type of animal that has a spinal cord that is encased by cartilage or bone. The…

Q: 13 - Chambered heart occurs in:   A) Leech B) Earthworm C) Snail D) Cockroach

A: The heart performs the function of pumping blood to the different parts of the body. Different…

Q: Which Animals Are Chordates?

A: Animals are multicellular eukaryotic organisms belonging to kingdom Animalia that are heterotrophic,…

Q: Crustaceans are _____. a. ecdysozoans b. nematodes c. arachnids d. parazoans

A: Answer is a.)  ecdysozoans.

Q: Which statement best describes how an earthworm moves? a Contracting setae while relaxing…

A: Earthworm mobilization:                         Circular and longitudinal muscles with bristles like…

Q: An arthropod that lacks mouthparts for chewing food is called what?

A: Most of the mouthparts in arthropods represent modified and paired appendages which may be in past…

Q: Which features characteristic of humans are unlikely to fossilize? a. the bones and dung b. the jaws…

A: A fossil is any preserved remains, impression, or trace of any once-living thing from a past…

Q: Build a frame with at least 4 components which represent a domain for insects

A: Insects are distinguished from other arthropods by their body, which is divided into three major…

Q: What characteristic is common to the flatworms, molluscs, and annelids? a. All have bilateral…

A: Organisms with a single plane of symmetry are called bilaterally symmetrical. Organisms which lack a…

Q: write a short conclusion about  Platyhelminthes Nematoda and Annelida

A: Platyhelminthes/ Flatworms:- They are soft bodied, flat invertebrates, most of which are parasitic…

Q: Fossils reveal that __ are the fish organisms with bony skeletons

A: Scientists group fish into three main types. They are divided into these groups because of the…

Q: How might insects’ wings have contributed to their diversity and abundance?

A: In ecology, biodiversity is defined as the biological variations among various species in the…

Q: What is a key characteristic of all arthropods? a. Six legs c. Hydrostatic skeleton b. Pseudocoelom…

A: Arthropoda are invertebrate animals equipped with joint appendages. It is the largest phylum of…

Q: Chordates are grouped with starfish because both are protostomes, true or false?

A: The Correct answer would be False because starfish is neither chordate nor a protostome, it is…

Q: Which features are true of sea cucumbers? A. use the water vascular system to move on the seafloor…

A: Please follow step 2 for detailed explanation.

Q: Lobe-finned fishes are important because theya. were the first vertebrates.b. were the earliest…

A: Lobe-finned fishes are coelacanths and lungfish have paired fins that comprise an extended fleshy…

Q: During a survey you spot a soft bodied animal enclosed in a two-piece shell. How can you determine…

A: Humans rely heavily on the marine environment and its inhabitants. We rely on the environment that…

Q: Does shrimp have a true tail? Or the uropod is just an appendage/part of the abdomen and not…

A: Shrimps are the crustaceans that are the part of arthropods. They have jointed appendages and…

Q: Why are horseshoe crabs in the same subphylum as spiders

A: Subphylum Chelicerata is an ancient group of arthropods, which include about 75000 species. Their…

Q: Earthworms are most closely related to________ . a. tapeworms c. planarians b. roundworms d. leeches

A:

Q: Which invertebrate phylum includes the most species?a. mollusks c. arthropodsb. roundworms d.…

A:

Q: How should this animal be classified? A Arthropoda C Mollusca B Annelida D Platyhelminthes

A: A dichotomous key is a useful scientific tool for identifying various organisms based on their…

Q: Describe some ways that crocodilians are similar to birds

A: Crocodilia are a small group of large, carnivorous aquatic animals that have remained essentially…

Q: Which was NOT a trait of primates that influenced the trajectory of human anatomy? O a. retention of…

A: Primates are a group of mammals which include evolutionarily advanced features. Monkeys,…

Q: The closest living relatives of hagfishes are_____ . a. snakes c. lampreys b. sharks d. placoderms

A: The organisms that has a common ancestor can share a relativity of closeness among it. These…

Q: If you discovered a fossil bird with scales on the body & teeth in the beak. What would…

A: Fossils are any preserved remains, impression, or trace of any once-living thing from a past…

Q: Hagfish, lampreys, sharks, and tuna are all chordates that can also be classified into which group?…

A: All chordates have endoskeleton with a backbone for the support of dorsal nerve cord and muscle…

Q: earthworms and leeches belong to which phylum?

A: R.H. Whittaker grouped various organisms and proposed five kingdom classification namely: Protista,…

Q: Which is INCORRECT about sea urchins? A. Spines are movable B. Secondary spine is shorter a d solid…

A: Sea Urchins are echinoderms having a spiny outer structure.  They move with the help of tube feet…

Q: Tetrapods evolved from_______ . a. sharks c. lobe-finned fishes b. teleosts d. placoderms

A: All extant and extinct creatures that evolved from the last single ancestor of amphibians, mammals,…

Q: How many years ago did amphibians appear?

A: The amphibians are ectothermic, tetrapod vertebrates of the class Amphibia. The different species…

Q: the animal kingdom was divided into 5 main clades.  Which clade has animals without true tissues

A: Need to find which of the clades lack true tissue. A clade is a group with ancestor and their…

Q: Which phylum is characterized by animals thathave a segmented body?(A) Cnidaria(B)…

A: Segmented body is the division of body plans in some animals in which the body is divided into the…

Q: Annelids, Arthropods and Molluscs are protostomes. Give reason.

A: Answer: Introduction: Protostomia is a group of animals comprising phyla the Arthropods, Annelids…

Q: Which clade does not include humans?(A) synapsids(B) lobe-fins(C) diapsids(D) osteichthyans

A: Clades are the group of organisms that are classified on their shared traits with their common…

Q: A bird or feathered dinosaur is ________. a. Neornithes b. Archaeopteryx c. Enantiornithes d.…

A: Dinosaurs that have feathers on their body are known as feathered dinosaurs. This species of…

Q: Match the benefit to the correct chordate adaptation. allows organisms to walk on land [Choose]…

A: Chordates are organism that possess an vertebral column extending from neck to back region.

Q: Pleopods of prawns are far larger in comparison to body size than crayfish What might this tell you…

A: Abdominal legs of crustaceans are called as pleopods. Pleopods are also called as swimmerets.

Q: what are three bones that allows frogs to live on land

A: Two bones in the lower Limbs of frog tibia and fibula.

Q: which is the sister group of vertebrates?

A: All fishes, amphibians, reptiles, birds, and mammals are classified as vertebrates. These animals…

Q: D nhiescribe the advantages favored the evolution of tapeworms' long, flat shape.

A: "Flatworms" are the term used to describe the members of the phylum Platyhelminthes. The flatworms…

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.