Unit 5 Individual Project Biology Essay Example | Topics and Well Written Essays - 1250 words

Unit 5 Individual Project Biology - Essay ExampleThe divided Key (Appendix B) was used to determine the taxonomic category (phylum or class) for each animal picture, and these categories written on Classification Column on the table. The phylum list (Appendix A) for each animal picture were also written in column single and all steps on column two as used to arriving at the classification for each animal given.The cartilaginous Fish atomic number 18 in class chondricthyes for instance the rays and sharks. Their inning is do of cartilage and not the bone. They do not have the lungs and swim bladders. The placodermi searches are precursors of these fish that are now extinct. They were the first fish to develop paired fins and jaws. (Don, & DeeAnn, 2005).6. The three types of mammals based on how the unfledged one develops are marsupials, monotremes, and placentals. The monotremes lay eggs marsupials give birth to underdeveloped young ones and develop them in a pouch such as the koala and kangaroo (Mayr, & Bock, 2002). The placental mammals give birth to adequately come on young ones, feed them via the placenta until they are fully developed in a womb before they are born (Mayr, & Bock, 2002). An example is the humans.Dichotomous means divided or cut into two parts. A dichotomous key is a tool used by scientists to classify organisms into classification categories or taxa. The key is made up of a series of numbered couplets, and within each couplet are two opposing statements which you read, choosing the one that best fits the animal picture.To use the key, you always start at the first couplet ( bearing for a 1 in the first column). Read the two couplet choices (labeled a and b in the second column), and apportion them carefully. If you do not know the meaning of a word, as some of these terms are technical, look them up in a reference, a dictionary, or your textbook glossary, perhaps.Again, you