Amphibians: Bufo alvarius, also known as Colorado river toad. The Colorado river toad is found in the northern part of Mexico, the southern parts of Arizona and New Mexico, and the southeast corner of California (Robinson, 2001). The Colorado river toad is a dark olive green color and leathery skin. The Colorado river toad is carnivorous and is known to eat snails, beetles, spiders, grasshoppers, lizards, mice and other smaller toad species. Pseudacris crucifer, also known as spring peeper
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invertebrates are highly sensitive to the acidification due to the shells which are made of either calcite or aragonite (both made of calcium carbonate CaCO3) causes them to dissolve when the pH is less than 5. Another invertebrate that is affected are arthropods when the pH is less than 5 causes the termination of the specie. Amphibians are also another source of species that are found in northeastern North America breed in temporary pool which are fed by acidified spring meltwater. Overall, the eggs and
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cellulose | A large polysaccharide composed of many glucose monomers linked into cable-like fibrils that provide structural support in plant cell walls. | chitin | A structural polysaccharide found in many fungal cell walls and in the exoskeletons of arthropods. | cholesterol | A steroid that is an important component of animal cell membranes and that acts as a precursor molecule for the synthesis of other steroids such as hormones. | dehydration reaction | A chemical process in which two molecules
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by one or more membranes. ex. mitochondria. All prokaryotes are microorganisms and include the bacteria and archaeons. Only some eukaryotes are microorganisms primarily: algae, protozoa, and yeasts (types of fungi) and certain animals such as arthropods and worms. Evolution timeline picture: Earth, prokaryotes, eukaryotes, reptiles, cockroaches, mammals and then humans. -Microbial dimensions: nanometers, micrometers and millimeters. smallest are viruses measuring around 10nm and not much
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Eastern Equine Encephalitis An Overview of the Disease Kelly Cammiso Public Health 101 Professor Brown May 10, 2013 Abstract In recent years, Eastern Equine Encephalitis has made national headlines in the media. Although it is rare, the disease has devastating effects, especially the encephalitic form of the disease. The purpose of this literature is to provide an overview of Eastern Equine Encephalitis Virus. History, geographical data, epidemiology, etiology, symptoms, diagnosis, treatment
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marine species during the Cambrian explosion, about 542 million years ago. Animals are divided into various sub-groups, some of which are: vertebrates (birds, mammals, amphibians, reptiles, fish); molluscs (clams, oysters, octopuses, squid, snails); arthropods (millipedes, centipedes, insects, spiders,
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Have you ever thought of what role lovebugs play in Florida’s environment? Love bugs are known to have an all-black body with an orange thorax. They fill up Florida’s sky with their little black bodies. Floridians and even annual travelers ask themselves “Why are they so annoying? Why are there so many? They are so destructive! How can they possibly help our environment?” As larvae, the waste products they produce help make viable soil for plants, which helps us in obtaining the oxygen. As adults
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BIOL-182 Reproductive System Dr. Shawn B. Wild I. INTRODUCTION A. Gonads B. Gametes 1. sperm * * head * acrosomal cap (acrosome) * middle piece * tail 2. ovum * oocyte ovum after fertilization 3. meiosis spermatogonia sperm oogonia ovum 4. fertilization 5. zygote II. Male Reproductive System A. Testes 1. spermatic cord * * ductus deferens * deferential artery *
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A species of marine arthropod lives in seawater that contains calcium in a concentration of 32 mmole/kg of water. Thirteen of the animals are collected and the calcium concentrations in their coelomic fluid are found to be 28, 27, 29, 29, 30, 30, 31, 30, 33, 27, 30, 32 and 31 mmole/kg. Test at 5% level of significance appropriate hypothesis to conclude whether members of this species maintain a coelomic calcium concentration less than that of their environment. A study was conducted to examine
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Iron has the atomic number of 26 and the symbol Fe with an average mass of 55.8 amu. It is not known specifically who discovered iron, but uses of it have dated back over 5000 years. (Jefferson Lab, paragraph 1) The electron configuration of iron is [Ar]4s23d6, which places it in the transition metals of the periodic table. Iron has all of the usual properties of a metal, it is shiny with a silver greyish color, ductile, malleable, and conducts heat and electricity. Although some mistake iron to
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