Ecdysozoans _ One of the two large subdivisions within the Protostomia _ Builds a cuticle‚ an outer layer of organic material that functions as its skeleton _ Cuticle is regularly shed (ecdysis) _ Have separate sexes and copulate Ecdysozoa Cuticle – nematode and arthropod Phylum Nematoda (15‚000 species) (Gr. nematos‚ thread) _ marine‚ freshwater‚ terrestial or parasitic _ long cylindrical body _ cuticle (cortical‚ matrix and fibrous) _ hydrostatic skeleton _ longitudinal muscles only _ pseudocoelom
Premium Arthropod Nematode
side of the screen. 3. Click the play button on the video controller in the lab simulation to watch an introductory video about mealworms. 4. Read the background information and instructions in the “Question” column. 5. Yellow mealworms are the larva stage of what animal? (highlight your answer) a. Monarch Butterflies b. Darkling Beetles c. Water Beetles d. Dung Beetles 6. What is the definition of a “stimulus?” A stimulus is an environmental change that directly influences the activity of a
Premium United States Psychology Health care
Example of a well-written lab report (single-spaced to conserve paper; yours should be double-spaced to leave room for comments) Ontogenetic Color Change and Mating Cues in Largus californicus (Hemiptera: Largidae) Carey Booth Biology 102 2 February 1995 Lab instructor: Ned Knight Lab day: Friday Abstract Ontogenetic color change at sexual maturation can be useful in identifying an appropriate mate for some organisms. Largus californicus individuals undergo two ontogenetic color changes. First
Free Reproduction Sex Male
bacteria off the eggs as well as blowing water at them to keep a steady supply of oxygen. After the eggs hatch‚ the mother clears an opening in the den for her young to swim up to the surface of the ocean. Life Span After hatching the octopus larva become much like plankton‚ drifting along the surface of the ocean feeding on particles of dead food from other larger animals. This stage lasts 30-90 days at which point the octopus descends to the bottom of the ocean where it will spend the rest
Premium Ocean Pacific Ocean
Observing how Sarcophaga bullata Stimulus Changes with Different Light Intensity and Wavelengths Animal behavior is one of the most basic characteristics of life and its capacity for response to the changing environment. We observed the stimulus which is the reaction to a specific change in an environment‚ and the response is what is carried after the specific change. Organisms have evolved in behaviors which are grouped into two different groups‚ learned behaviors and inmate behaviors. Learned behaviors
Premium Psychology Behaviorism Biology
itself in mud or sand” (Miller and Levine). Clams are mollusks with two valves also nickname the bivalves. Clams are mostly marine animals however; the clams we will dissect are freshwater clams. Adult clams have bilateral symmetry but when they are larva clams have radial symmetry. A clam has complete digestion and has open circulation. The materials used in this lab were a preserved clam‚ a dissection pan‚ bent tip probe‚ scalpel‚ specimen bag‚ pins‚ gloves‚ tools‚ paper towels‚ goggles‚ ruler‚ lab
Premium Digestion Heart Stomach
hold onto the skin using suckers attached to the two most anterior pairs of legs. They will then burrow into the skin. Transmission may also occur via fomites (e.g.‚ bedding or clothing). Sarcoptes scabei undergoes four stages in its life cycle; egg‚ larva‚ nymph and adult. Sarcoptic mites form definite burrows under the skin in which females deposit eggs. Females deposit eggs at 2 to 3 day intervals as they burrow through the skin. Eggs are oval and 0.1 to 0.15 mm in length. Incubation time for eggs
Premium Economics Rash Baseball statistics
Investigation: How does the number of maggots in the mass affect the temperature of maggot mass and development of maggots in the mass? Abstract The aim of this investigation is to find a correlation between the number of maggots in the mass and the temperature of maggot mass. To find the correlation the different number of maggots in each mass was placed in (the isolated by glass beakers) polystyrene cups. The internal temperature of masses was obtained regularly every 10 minutes during 30
Premium Chemistry Temperature Concentration
which secrete a scent (Emmel‚ 1999). The male scent is used during mating. The copulation of a male and female monarch can last from thirty to sixty minutes which is about average for most butterflies (Emmel‚ 1999). The life cycle starts as larva or caterpillar. First‚ the monarch lays the eggs on the milkweed plants. Next‚ the egg hatch into a caterpillar. The caterpillar then eats the milkweed plants until they are large enough to pupate (Emmel‚ 1999). Then‚ the caterpillar attaches a
Premium Lepidoptera Monarch Insect
THE EFFECT OF TREFLAN ON SURVIVAL OF MUD CRAB (Scylla serrata) LARVAE An Investigatory Project Presented to the Faculty of the Special Science Class Iloilo National High School La Paz‚ Iloilo City In Partial Fulfillment of the Requirement for the Subject Research II Dominic Paul O. Genson March 2003 THE EFFECT OF TREFLAN ON SURVIVAL OF MUD CRAB (Scylla serrata) LARVAE DOMINIC PAUL O. GENSON Chapter 1 Introduction Background of the Study Mud crabs belonging
Premium Crustacean