Chelicerata - Study guides, Class notes & Summaries

PSS FINAL EXAM QUESTIONS & ANSWERS 2024/2025 Characteristics of Arthropods - ANSWERSbilaterally symmetrical, joint appendages, they molt, exoskeleton, segmented body, open circulatory system, brain is ganglia Five Subphylums - ANSWERSHexapoda (butterflies), Chelicerata (Scorpions or spiders), Myriapoda ( Millipedes), Trilobites (extinct), and crustacea (shrimp) Insect products used by humans - ANSWERSSilk from silk worms, food like almonds, made from chitin, red dye, and honey 4 ec...

1. Phylum Porifera - Answer-- sponges - loosely organized and lack tissues - multicellular with several types of cells - 8,000 species, mostly marine - no apparent symmetry - adults sessile, larvae free-swimming - water drawn through pores into spongocoel - flows out through osculum - choanocytes line spongocoel - mesohyl between choanocytes and epithelial cells - reproduce sexually and asexually 10. Phylum Nematoda - Answer-- roundwomrs - in nearly all habitats - over 20,000 specie...

Genus Triticites Genus Nummulites Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:00 Full screen Genus Astraeospongia (calcareous sponge) Genus Hydnoceras (glass sponge) Genus Archimedes Genus Rhombopora Order Dendroidea (benthic graptolites) Order Graptoloidea (planktic graptolites) Genus Favosites Genus Halysites Genus Heliophyllum (horn coral) Genus Hexa...

Phylum Nematoda - Answer Round worms (hookworm, pinworm) Phylum Arthropoda - Answer 1. Subphylum Chelicerata - Class Merostomata: aquatic chelicerates (horseshoe crab) - Class Arachnida (scorpions, spiders, ticks, mites) 2. Subphylum Myriapoda - Class Diplopoda (millipedes) - Class Chilopoda (centipedes) 3. Subphylum Crustacea - Class Malacostraca (isopod, crabs, crayfish, shrimp) 4. Subphylum Hexapoda - Class Insecta (insects)

WSU Biology 106 Exam 3 Questions With 100% Verified Answers. What role do each of the components of natural selection play in pushing populations toward becoming better adapted for the environment in which they live? (mutation, heritable variation, selective pressures, reproduction) - answer-leads to evolutionary change when individuals with certain characteristics have a greater survival or reproductive rate than other individuals in a population -pass on these inheritable genetic charac...

WSU Biology 106 Exam 3 >> Questions and Answers Updated | 2024 Spongocoel the large central cavity of sponges. water enters the spongocoel through tiny pores called ostia and it exits through the large opening called the osculum. spongocoel is lined with choanocytes which help to create a current in the water. Spicule structural elements found in most sponges. They provide structural support and deter predators. Large ones are called megascleres while microscopic ones...

According to research, the closest living relative of animals is believed to be a flagellated protist known as choanoflagellate. anatomical features belonging to Radata include presences of specialized tissue, two germ layers, circular or tubular shape with mouth parts at one end Animals belonging to the group Bilateria exhibit what anatomical characteristics? dorsal and ventral side, and anterior and posterior end, cephalization What are germ layers? ectoderm, mesoderm, endoderm: cell ...

WSU Biology 106 Exam 3 Questions Marking Scheme Spongocoel - ANSWER- the large central cavity of sponges. water enters the spongocoel through tiny pores called ostia and it exits through the large opening called the osculum. spongocoel is lined with choanocytes which help to create a current in the water. Spicule - ANSWER- structural elements found in most sponges. They provide structural support and deter predators. Large ones are called megascleres while microscopic ones are calle...

Middle School Science Bowl Study Guide skeleton - answerthe internal supporting structure that gives an artifact its shape vertebrae - answerbackbone (26 bones) joint - answerthe point of connection between two bones ligaments - answertissue that connects bone to bone compact bone - answerHard, dense bone tissue that is beneath the outer membrane of a bone. spongy bone - answerpart of bone with many small pores or spaces marrow - answerconnective tissue that fills the cavities of bones c...

What does insect hemolymph transfer in the body? Nutrients, wastes, hormones, immune cells and peptides, BUT NEVER O2!! What kind of circulatory system do insects have? open circulatory system: hemolymph is in direct contact with tissues Brainpower Read More What is the dorsal vessel? Main circulatory organ of insects. It spans the entire length of an insect's body on the dorsal side. Anterior: aorta. Posterior: heart What are Alary muscles? muscles that hold the heart in...