when observing earthworms, while they move, can you easily distinguish the anterior from the posterior end? Yes, you can! If they are not moving, can you see any distinguishing feature in the body segments that may enable you to identify the anterior from the posterior?

Q: What structures of chelicerates are analogous to the antennae of chilopods (centipedes) and other…

A: Introduction: Chelicerates fall under the category of arthropods and consists of scorpions, spiders,…

Q: What type of symmetry do the Echinoderms have? Do they have this type of symmetry their entire…

A: Echinoderms or spiny skinned animals belong to the phylum Echinodermata. They are marineand…

Q: With the reference to the thorax only, how do insects differ from other organisms

A: Thorax is the region present between the neck and the abdomen. It includes thoracic cavity and…

Q: How are wings and exoskeletons adaptive advantages in terms of the body structure of insects?

A: In this question, we have to mention the adaptive advantage of wings and exoskeleton in the insects.

Q: What is the movement of lizard called?

A: Lizards are one of the common examples of reptiles. Most of the members are legless and quadrupedal…

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: Identify and explain what insects are expected to have the most sclerotized heads? Does an…

A: Scelerotin is typically a brown coloured substance found in cuticles of insects. Scelerotin is…

Q: How are insects distinguished from other hexapods?

A: Arthropods are the invertebrates that form one of the largest groups of phylum in the animal…

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: difference between the digestive tract of earthworm and a flatworm?

A: Digestive system of earthworm: The digestive system consists is divided into many regions with…

Q: What is filiform antennae?

A: The adult insect possesses a pair of antennae.  They originated exclusively from the second segment…

Q: How does the foot of a bivalve differ from the foot of a cephalopod, or the foot of a snail? In what…

A: Bivalve Foot - The bivalve foot is one singular mass. It do not have a flat creeping sole but is…

Q: State whether the animal is internally segmented, externally segmented, or both.   1. Fish 2.…

A: Introduction Segmentation divide the body of animals into repetative segments. For example phylum…

Q: Why does the larval stages of insects exhibit a softer and thinner exoskeleton than their adult…

A: A newly synthesized exoskeleton is usually more soft and flexible and as the larva becomes adult,…

Q: Are insect wings considered appendages? Why or why not?

A: Insects are the most diverse organisms on the planet. They occupy land, air, and water. They belong…

Q: What advantage might a bilaterally symmetrical animal have over one that is radially symmetrical,…

A: Bilateral symmetry involves the organisms with body shapes and are mirror images along a midline…

Q: Elaborate thoroughly: What insects are expected to have the most sclerotized heads? Explain. Does…

A: INTRODUCTION         Insect morphology is an physical form of insects is used to obtain many type…

Q: How do insects walk?

A: The legs of insects are jointed and consist of five parts that are femur, tarsus, tibia, trochanter,…

Q: Earthworms are segmented animals. All of the following are present on/in most segments of an…

A: Origin The origin of earthworms was said to be on earth around 200 million ago. Their ancestors were…

Q: How did the vertebrate appendage evolve into the limbs we find so useful today?

A: The tetrapods consist of the a pair of forelimb and a pair of Hindlimb and these are supported by…

Q: The chelicerates have 2 pairs of antennae (True/False)?

A: Arthropods dominate the protostome branch of the kingdom Animalia and are eucoelomate protostomes.…

Q: What do invertebrates have in common?

A: Organisms are open systems that maintain homeostasis, are composed of cells, have a life cycle,…

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: How is it that the insects form legs only in their three thoracic segments and have no legs on their…

A: Arthropods are animals with jointed appendages that account for more than 90% of all animals in the…

Q: what anatomical system of praying mantis and crab would you recommend as a target of attack and why?

A: Mantis is insect contains over 2,400 species in about 460 genera in 33 families.Mantis are found in…

Q: Identify the antennae parts shown in the picture

A:

Q: this is dugesia  Compare the body plan of Dugesia and cnidarians. Aside from differences in…

A: Cnidarian and Platyhelminthes (Dugesia) are invertebrate animals that do not contain notochord and…

Q: What refers to a digestive tract that is specialized with an anterior region to mix and churn food…

A: Digestion is the process by which complex food particles break down into simple food particles by…

Q: Name one unique feature of the Arthropoda that is visible on honey bees. Also, can you guess what…

A: Introduction :- Arthropoda are an invertebrate phylum under the kingdom Animalia and it is the…

Q: What are various podomeres that make walking legs of the insects? Explain briefly

A: All the insects have their body segmented into the head, thorax and abdomen. The abdomen region…

Q: examine the morphology and anatomy of starfish.  Notice the ossicles and plates that constitute…

A:

Q: how many pairs of walking legs does the class insecta have

A: Within the Phylum Arthropoda there are over 800,000 described species, derived from the Greek…

Q: Brachiopods superficially resemble bivalve molluscs, such as clams. How would you explain the…

A: brachiopods are marine invertebrates that comprises the lamp shells. They are places in phylum…

Q: How do insects differ from other organisms in the thorax

A: Insects are hexapod invertebrates belongs to the phylum arthropod. They possess jointed appendages…

Q: You have received a number of embryos of a bilaterian animal from a colleague, who has asked for…

A: The symmetry of an organism is the plan of the body. It can be of following types: 1) asymmetrical…

Q: What functional problem results from torsion? How have gastropods evolved to avoid this problem?

A: The shell is first formed in the veliger larval stages of gastropods. This larval stage has two…

Q: How is the skeleton of a sea urchin like the skeleton of a lobster? How is it different?    Sea…

A: The multicellular heterotrophic eukaryotic organism without a cell wall are grouped into kingdom…

Q: . While the earthworms are not moving, can you see any distinguishing feature in the body segments…

A: Earthworm are the worms that are found in the soil and help in decomposition of soil matter  They…

Q: What insects are expected to have the most sclerotized heads? Explain. Does an exoskeleton have an…

A: The epicuticle, a thin protein coating on the outside, and the procuticle, a thick chitin–protein…

Q: Using forceps or tweezers, gently pull the 4th or 5th pereiopod to examine its motion. Do so without…

A: As per the guidelines, we are entitled to do one question at a time. Kindly submit the question and…

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: How can invertebrates move without a system to for muscles to pull on?

A: Introduction: Invertebrates: Invertebrates are those which are cold blooded animals lacking bones.…

Q: f the lophophore is absent in brachiopods, would you consider them to be members of Mollusca? Why or…

A: Definition: - A lophophore creates a continuous, laminar water flow, induced by the lateral cilia on…

Q: Considering the presence of segmentation (metameres) in their body to which other already studied…

A: Arthropod are the invertebrate organisms and have segmented body, exoskeleton, and jointed paired…

Q: Why do you believe squid received the name cephalopod, which means head-foot? What distinguishes the…

A: Hi dear, here's your answer. The name cephalopod, in Greek, means that "head foot." This name was…

Q: Describe and identify on which segment of the legs/limbs of an insect would you expect the…

A: Insects have three pairs of legs, fore legs, mid legs and hind legs. There are certain modifications…

Q: how does a light-colored exoskeleton make beetles better adapted to the environment?

A: Introduction Exoskeleton:- It is a rigid or articulated envelope that supports and protects the soft…

Classification of Marine Organisms

Classification is a way of categorizing organisms that enables an easy process of identification of such organisms. All living things are classified by grouping them under specific categories. The grouping is done based on the close relativeness of the organisms. The classification tool requires knowledge of characteristics, differences, and similarities between different organisms.