Understand why the evolution of jointed appendages and an exoskeleton helped arthropods to be highly successful.

Q: examine the morphology of a millipede and a butterfly.  What characters do they share? Notice how…

A: As per the evolution of organisms, the organisms are divided into various phyla. These are a group…

Q: Discuss the role of the cuticle in the earthworm

A: Earthworm :- It is a terrestrial invertebrate that belongs to the phylum Annelida.  Cuticle :- It is…

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: Why are arthropods important and How arthropods affect human health?

A: Arthropods have also made contributions to humans, such as the red dye carmine, which is created by…

Q: What are some characteristics that allowed for the evolutionary success of arthropods?

A: Introduction Phylum Arthropoda, the largest in the animal kingdom, which includes familiar forms…

Q: Observe the exoskeleton of the marine blue crab. What do you think they are made of?

A: Taxonomy is the study of organism categorization, it is the grouping (division) of all known species…

Q: Explain the advantages and disadvantages of the arthropod exoskeleton.

A:

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: What are Arthropods ? Explain the characteristics of Arthropods ?

A: Arthropod are the largest phylum in animal kingdom.

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: What is a key characteristic of all arthropods?a. Six legsb. Pseudocoelomc. Mandiblesd. Exoskeleton

A: Arthropods are the largest phylum among animal kingdom. They are non chordates and do not contain…

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: 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: Explain why today’s amphibians are all tied to moist environments.

A: Amphibians are known as ectothermic, tetrapod vertebrates that belong to the class of amphibians.…

Q: Which of the following is not characteristic of arthropods? (a) exoskeleton (b) pseudocoelom (c)…

A: Answer is b.) pseudocoelom.

Q: Contrast the skeleton of an echinoderm with that of an arthropod.

A: The kingdom “Animalia” has several phyla (taxonomic rank: phylum). The organisms of this kingdom are…

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: Give advantages that amoeba has over a lizard in relation to their levels of organization

A: The amoeba being an unicellular organism thus a single cell performs all its body functions but in…

Q: like the desert, or emergent A. Class Osteichthyes B. Class Mammalia

A: Amniotes are part of the tetrapod vertebrates that include sauropsids (including reptiles and birds)…

Q: Use examples to explain how the external morphology of cephalopods has changed over evolutionary…

A: Mollusca is the largest marine phylum of the animal kingdom that is characterized by a mantle with a…

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: Describe the advantages and disadvantages of thearthropod exoskeleton.

A: The largest phylum of the animal kingdom is Arthropoda that possesses a hard, tough external shell…

Q: Amphibians were the first _________, four-footed terrestrial vertebrates.

A: The organisms of the ecosystem have significant properties. Depending upon the different features of…

Q: Do octopus and squids have exoskeleton?

A: An exoskeleton is an outer cover present on the body of an animal. In most of the animals it is made…

Q: How does the presence of exoskeleton explain the general small size of arthropods?

A: Arthropods are the invertebrates with characterized by the presence of jointed appendages and a hard…

Q: Explain why echinoderms and chordates are nowconsidered to be closely related.

A: Echinoderms are the most closely related phylum  to the phylum Chordata , which includes many…

Q: A coelom is a body cavity completely lined with (a) epithelium (b) ectoderm (c) mesoderm (d)…

A: In human beings, there are three embryonic germ layers that are responsible for the development of…

Q: Describe three reasons arthropods are have been so successful.

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

Q: Echinodermata is the first phylum you have examined whose members possess true endoskeletons. What…

A: Echinodermata are called after their spiny skin, and so this phylum has over 7,000 recognized living…

Q: Compare and contrast anatomy and ecological role of a Bivalve and a Cephalopod. Based on their…

A: Bivalve is a class of marine and freshwater molluscs. They have a flat body and include clams,…

Q: Explain why it is necessary to know the life history of a tunicate to understand why tunicates are…

A: Tunicates are members of the subphylum Urochordata and phylum Chordata. They are small marine…

Q: List the order in which the major types of animals appeared on Earth

A: Animals are the living organisms that able to move where as the plants are the category of organisms…

Q: The arthropods have a metameric body with segments organized into functional groups called

A: In this question, we have to answer a metameric  body with segments organised into functional groups…

Q: In an ecdysozoan would cease if ecdysis did not occur.

A: Arthropoda (insects, chelicerata, crustaceans, and myriapods), Nematoda, and several smaller phyla…

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: Define Amphibia

A: There are 5 types of Vertebrates known namely:- 1) Fishes2) Amphibians3) Reptiles4) Birds5) Mammals

Q: Explain why forams have such a well-preserved fossilrecord.

A: The remains, traces, or impressions of ancient life are called fossils. Their study is known as…

Q: give examples of animals with hydrostatic skeleton that are soon changed to exoskeleton or…

A: The skeleton formed by the coelom in the organism's body filled with fluid is called the hydrostatic…

Q: All insects have jointed appendages and radula. have exoskeletons or cuticles. undergo complete…

A: The answer is option B - have exoskeletons or cuticles. The insect exoskeleton is the external…

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

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

Q: Walkng in the beach you see an animal with a hard shell and many jointed appendages. Determine…

A: Arthropods  These are invertebrate animals that possess  exoskeleton with segmented body, and paired…

Q: Describe four advantages of arthropod exoskeleton.

A: Introduction: Arthropoda is a phylum in the animal kingdom. The species in this phylum are…

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: . SUMMARY OF THE ANIMAL KINGDOM Compare the animal groups by placing the correct number(s) in the…

A: Animals are classified into chordates and non chordates based on the presence or absence of the…