Invertebrate Phyla and Characteristics

<p>Crustaceans typically possess two pairs of antennae. (A)</p> Signup and view all the answers

<p>Complete metamorphosis (D)</p> Signup and view all the answers

<p>Two-opening digestive system (A)</p> Signup and view all the answers

<p>Consuming raw pork (B)</p> Signup and view all the answers

<p>Scolex (B)</p> Signup and view all the answers

<p>Closed circulatory system (B)</p> Signup and view all the answers

<p>Lack of appendages (B)</p> Signup and view all the answers

<p>Presence of an exoskeleton (D)</p> Signup and view all the answers

<p>Skin (D)</p> Signup and view all the answers

<p>Unsegmented with a pseudocoelom (B)</p> Signup and view all the answers

<p>Sea lily (C)</p> Signup and view all the answers

<p>Locomotion (D)</p> Signup and view all the answers

<p>Through the bite of a fly (C)</p> Signup and view all the answers

<p>Brittle star (D)</p> Signup and view all the answers

<p>Grazing herbivores (A)</p> Signup and view all the answers

<p>Endoskeleton (B)</p> Signup and view all the answers

<p>Cylindrical (C)</p> Signup and view all the answers

<p>Skin (C)</p> Signup and view all the answers

<p>Invertebrates lack a backbone (D)</p> Signup and view all the answers

<p>Phylum Porifera (D)</p> Signup and view all the answers

<p>Radial symmetry (C)</p> Signup and view all the answers

<p>Coelom is a fluid-filled cavity containing internal organs (C)</p> Signup and view all the answers

<p>The concentration of nerves and sensory organs in the anterior (C)</p> Signup and view all the answers

<p>Roundworms (A)</p> Signup and view all the answers

<p>The blastopore becomes the mouth in early development (B)</p> Signup and view all the answers

<p>Body is segmented (C)</p> Signup and view all the answers

<p>Excretion of nitrogenous wastes (A)</p> Signup and view all the answers

<p>Class Bivalvia (D)</p> Signup and view all the answers

<p>Endoskeleton (D)</p> Signup and view all the answers

<p>Broad muscular foot (A)</p> Signup and view all the answers

<p>Leeches (B)</p> Signup and view all the answers

<p>Closed circulatory system (C)</p> Signup and view all the answers

<p>Octopus (D)</p> Signup and view all the answers

<p>Chelicerae (C)</p> Signup and view all the answers

<p>They typically become sessile. (D)</p> Signup and view all the answers

<p>Four body parts including foot and mantle (D)</p> Signup and view all the answers

<p>They have a body cavity absent. (D)</p> Signup and view all the answers

<p>It is completely lined by mesoderm. (B)</p> Signup and view all the answers

<p>Radial symmetry (A)</p> Signup and view all the answers

<p>Class Scyphozoa (B)</p> Signup and view all the answers

<p>Acoelom (B)</p> Signup and view all the answers

<p>They are filter feeders using collar cells. (B)</p> Signup and view all the answers

<p>To excrete excess water. (B)</p> Signup and view all the answers

<p>Their life cycle typically involves more than one host. (D)</p> Signup and view all the answers

<p>They exhibit cephalization. (A)</p> Signup and view all the answers

<p>Class Scyphozoa (D)</p> Signup and view all the answers

A subphylum of arthropods that includes centipedes, millipedes, and insects.

A class of uniramians that have a long body divided into many segments, each with one pair of legs.

A class of uniramians that have a long body divided into many segments, each with two pairs of legs.

A class of uniramians that includes insects and have three body parts: head, thorax and abdomen.

The process of an insect developing from an egg to an adult stage. It can be Complete or Incomplete.

A phylum of marine invertebrates characterized by radial symmetry, a water vascular system, and a spiny skin.

A network of fluid-filled canals in echinoderms that helps with movement, feeding, and gas exchange.

The star-shaped echinoderms with five or more arms, known for their regenerative abilities.

Echinoderms with a long, cylindrical body and feeding tentacles. They are often found on the ocean floor.

The rigid, internal skeleton found in echinoderms.

The outer covering that provides support and protection for many invertebrates, such as insects and crabs.

A type of skeleton found in invertebrates, where the fluid within the body cavity provides support and enables movement.

The network of nerves that controls the body's functions in an organism.

All living organisms are classified into a hierarchical system of groups. These groups can be further subdivided into smaller groups based on shared characteristics. The most inclusive group is called a Kingdom. Animalia is one of the five Kingdoms in the classification system.

Multicellular organisms that lack a backbone. They represent the vast majority of animal species. This group encompasses a wide diversity of forms, from simple sponges to complex insects.

A fluid-filled space inside the body that surrounds and supports the internal organs. It allows for greater flexibility and movement.

The evolutionary process of increasing concentration of nerves and sensory organs toward the head end of an organism. This allows for more efficient coordination and sensory perception.

The evolutionary trend of cells specializing in specific functions, leading to the development of different tissues and organs.

The development of a body with distinct front and back ends. This allows for directional movement and more efficient feeding.

A developmental stage in which the blastopore, the first opening formed in the embryo, develops into the mouth. This is characteristic of most invertebrates.

The most diverse phylum of animals, characterized by their exoskeletons, jointed appendages, and segmented bodies. They include insects, crustaceans, arachnids, and myriapods.

A type of parasitic flatworm that lacks a digestive system and is composed of repeating segments called proglottids, which contain eggs. The head, known as the scolex, attaches to the host's intestines.

The head of a tapeworm, responsible for attaching to the host's intestines.

One of the repeated segments that make up the body of a tapeworm, containing eggs.

A phylum of unsegmented worms with a cylindrical body shape and a digestive system with two openings, a mouth and an anus. They have a hydrostatic skeleton and exhibit bilateral symmetry.

A type of parasitic roundworm that infects humans through the ingestion of contaminated food or water containing Ascarid eggs.

A type of roundworm that infects humans through the consumption of raw or undercooked pork containing larval cysts.

A phylum of segmented worms with a body composed of segments separated by internal partitions. They have a closed circulatory system, hydrostatic skeleton, exhibit bilateral symmetry, and possess two body openings.

A class of segmented worms that live mostly in salt water and have bristly, fleshy appendages on each segment. Examples include sandworms and fanworms.

Excretory organs in some invertebrates, particularly earthworms, that filter waste from the blood and excrete it.

The process where an organism transforms a larval form into an adult form, often involving significant physical changes.

A type of appendage found in chelicerates (spiders, scorpions, etc.) that are used for feeding. The first pair are called chelicerae, and the second pair are called pedipalps.

The process of removing metabolic waste products from the body. It is essential for maintaining homeostasis.

The first pair of appendages in chelicerates, used for biting and sucking.

The second pair of appendages in chelicerates, used to capture prey.

A fluid-filled cavity that is partially lined by mesoderm, such as the body cavity of roundworms.

A fluid-filled cavity completely surrounded by mesoderm, providing support and space for organs. Seen in animals like annelids.

Animals belonging to the phylum Porifera, characterized by their porous bodies, lacking true tissues, and filter-feeding mechanisms.

A type of skeletal structure found in sponges, composed of flexible protein fibers or sharp, mineralized structures for support.

The process by which sponges draw water through openings called ostia, filter out food particles, and expel the water through a larger opening called the osculum.

A group of animals belonging to the phylum Cnidaria. Most are carnivorous and possess stinging cells called nematocysts on their tentacles.

A sac-like body structure found in cnidarians, with a single opening that serves as both mouth and anus. Used for digestion and distribution of nutrients throughout the organism.

A type of body form that is mostly free-swimming and bell-shaped, as seen in jellyfish.

The process by which cnidarians fire stinging capsules called nematocysts to immobilize prey.

A group of animals belonging to the phylum Platyhelminthes. They are characterized by their flat, unsegmented bodies, three-layered germ structure, and often a parasitic mode of life.