RESPIRATORY PIGMENTS Colored‚ metal-containing proteins that combine reversibly with oxygen‚ found in the body fluids or tissues of multi-cellular invertebrate animals and microorganisms. The role of these pigments is primarily to aid in the transport of molecular oxygen. Thus they are distinguished from respiratory enzymes‚ which are concerned with the metabolic consumption of oxygen. Four distinctly colored groups of respiratory pigments exist among invertebrates: hemoglobins (purple‚ become orange-red
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Flatworm‚ Annelids‚ Nematodes‚ Arthropods and Molluscus. Annelids have long‚ thin‚ soft bodied divided into segments or rings. Nematodes have thin‚ cylindrical bodies that are not divided into
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all chordates? a. they all have a notochord b. they all have a vertebral column c. they all have an exoskeleton d. they all exhibit radial symmetry e. They all have four limbs __________ are the simplest animals that exhibit bilateral symmetry. a. Annelids b. Sponges c. Flatworms d. Roundworms e. Hominids Natural populations of lemurs are found only in ______________. a. Peru b. Bolivia c. Madagascar d. Tasmania e. Congo Species found in only one place on Earth are called ________ species. a. hot spot
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None in porifera‚ cnidaria Protonephridia in planaria & rotifers Metanephridia in annelids Malpighian tubules in terrestrial arthropods Kidneys (with nephrons) in vertebrates Protonephridia Have flame bulbs‚ tubules‚ and nephridopores. C Flame bulbs selectively filter body fluid to nitrogenous waste. C Fluid collects in tubules and drips outside through the nephridopore. Metanephridia are found in annelids. C Nephrostomes collect and filter body fluid. C Waste concentrates inside the collecting
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Animal Phyla Lab Adapted from “Phylum Lab” produced by the National Aquarium in Baltimore The diversity of animal life on Earth is astounding. Each animal has a unique body plan which allows it to survive and adapt to its given surroundings. With such an abundance of species‚ classifying animals into different categories is necessary. At first the diversity of animals can be overwhelming‚ but after further research and observation‚ many likenesses appear. These similarities become the basis for
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the bacteria directly. Larger organisms such as snails‚ shrimp‚ crabs‚ tube worms‚ fish‚ and octopuses form a food chain of predator and prey relationships above the primary consumers. The main families of organisms found around seafloor vents are annelids‚ poginophorans‚ gastropods‚ and crustaceans . Hydrothermal vents in the deep ocean typically form along the Mid- ocean ridges‚ such as the East Pacific Rise and the Mid- Atlantic Ridge. These are locations where two tectonic plates are diverging
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Phylum Chordata Veretebrate - an animal of a large group distinguished by the possession of a backbone or spinal column‚ including mammals‚ birds‚ reptiles‚ amphibian.. invertebrate - An animal lacking a backbone‚ such as an arthropod‚ mollusk‚ annelid‚ coelenterate‚ etc. The invertebrates constitute an artificial... swim bladder - A gas-filled sac present in the body of many bony fishes‚ used to maintain and control buoyancy. Gills - The paired respiratory organ of fishes and some amphibians
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length‚ with most species being less than 10 centimeters (3.9 in). The sipunculan body is divided into an unsegment trunk and a narrower‚ retractable anterior section‚ called the "introvert". Sipunculans have a body wall somewhat similar to that of annelids (though unsegment) in that it consists of a non-ciliated epidermis overlain by a cuticle‚ an outer layer of circular and an inner layer of longitudinal musculature. Subphylum Crustacean (the Crustaceans) comprises a large group of arthropods. The
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CHAPTER 4 ANIMAL KINGDOM Animal Kingdom is characterized by multicellular‚ eukaryotic organisms. The cells lack cell walls. They ingest and digest food (holozoic)‚ hence they are heterotrophic. Higher forms show elaborate sensory and neuromotor systems. Majority of them are motile. Reproduction is mostly sexual and embryological development is present in them. About 1.2 million species of animals are described till now. The classification helps to assign a systematic position to newly described
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PHYSICS PROJECT TO STUDY THE OPTICAL LENS OF A HUMAN EYE Eyes are organs that detect light‚ and convert it to electro-chemical impulses in neurons. The simplest photoreceptors in conscious vision connect light to movement. In higher organisms the eye is a complex optical system which collects light from the surrounding environment; regulates its intensity through a diaphragm; focuses it through an adjustable assembly of lenses to form an image; converts this image into a set of electrical signals;
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