Crayfish

Shark bay research A bit about shark bay: Shark bay lies on the extreme western coast of Australia between 24 and 27 degrees south of the equator. Shark Bay comprises two large, shallow embayment, numerous islands and a coastline, which is 1500km long. Part 1: Ecosystem description a) Shark bay is a heavily marine based environment that covers 2.2 million hectares and has a coastline of more than 1,500 km long. Shark bay has a very diverse ecosystem but is mostly steered by aquatic abiotic…

The river otter is part of the family Mustelidae, which is the weasel family. They have an elongated body that is widest at the hips with short and stocky legs. Another characteristic of this family is having a muscular neck that is in thickness equal to or greater than that of its head. River otters have a tail that is approximately one-third of their total body length with the end being tapered. They have a small flat head that with small anterior eyes, broad muzzle, long thick whiskers,…

Combustion happens when a fuel reacts with oxygen. Depending on how much oxygen is available, fuels can combust completely or incompletely. Complete combustion happens when there is excess oxygen available to the fuel. Complete combustion of hydrocarbons produces water (H2O) and carbon dioxide (CO2). Incomplete combustion happens when there is limited oxygen. The incomplete combustion of hydrocarbons produces water (H2O), small amounts of Carbon Dioxide (CO2), Carbon Monoxide (CO) and…

INTRODUCTION In this report, I present a summary of five major arthropod groups. The three groups chosen for this report are Trilobitomorpha, Crustacea and Insecta. Like my previous report, I have organized this report to provide a general summary of these groups, and also to examine a number of fossil specimens belonging to each group. For each group, ten specimens belonging to a specific sub-group (and a specific stratigraphic range when possible) were selected from the GB3D Type Fossils…

Pawnee Nation of Oklahoma The Pawnee were one of the first Native American tribes to settle in the Great Plains area. Around 1200 C.E., the Pawnee migrated from Texas and Mexico to find a new home elsewhere. They traveled for years settling in Oklahoma, Kansas, and parts of Nebraska around 1750 C.E. (“Pawnee Tribe History, Facts, and Culture”). Around the 1540s, Spanish explorer, Francisco Vazquez de Coronado, reported that the Pawnee tribe had “large and organized farming and hunting villages,…

Interesting facts about the otter They at times hold hands while walking just like humans do, and just like humans, they also employ the use of tools to make their life easier. The otter is a small mammal that is interesting. It is from the same family as the honey badger, minks and polecats as well as wolverines and martens; the family Mustelidae also known as the weasel family. There are 13 species of the otter that are in existence today and these are the Lutrogale perspicillata, Hydrictis…

might not. Furthermore freshwater acidification can lead to decline and loss of fish population. A pH of 4.5 no fish is to survive. A decrease of pH is most correlated with an increase of toxic metal availability. Animals like leeches, snail, and crayfish are early victims of acidification; insect like mayfly would disappear even at moderate acidification. Species like dragonfly, water beetle, and blood worms can grow abnormally large. Salmon, trout, and roach are the most at risk from…

TOLERANCE OF LIVING ORGANISMS TO LIMITING FACTORS Marjorie Villareal INTRODUCTION It is a recognized principle of Ecology that the interactions of organisms and environment are reciprocal. The environment not only determines the conditions under which life exists, but the organisms influence the conditions prevailing in their environment as well (Brett, 1969). When organisms encounter harsh abiotic conditions, they may have one of two responses. Evolutionary adaptations in their morphology,…

Introduction On September 12, and October 3, 2016, we stopped at 6 locations north of Northampton in the Deerfield Basin of the Connecticut River Valley (Figure 1). The purpose of these stops is to examine rocks, interpret depositional environments for each rock formation, and discuss the geologic history of the Deerfield Basin based on observations and interpretations. Early Mesozoic lithospheric extension led to the development of a long sequence of rift basins. The Deerfield basin is the…

Table of Contents Pages Introduction Appearance and Characteristics Habitat Poison Importance to Humans Locomotion Diet and Enemies Reproduction Conclusion Bibliography Introduction: Page 1 The blue-ringed octopus is one of the ocean’s most fascinating octopuses. There are four different types of blue-ringed octopuses confirmed. Instead of being divided by their sizes, they are divided and named by the distinctive patterns…