Purchase Solution

Categorizing organisms using dichotomous key

Not what you're looking for?

Ask Custom Question

I have already categorized the following "Groups of Organisms," except for DOLPHINS. Where would it be placed in the problem below?

bats monkeys Euglena

lemurs sponges amphibians

dolphins Ginkgo biloba jellyfish

reptiles birds beavers

echinoderms tarsiers photosynthetic bacteria

a) production of milk for the young (reproductive, physiological)
Characteristic of all mammals

b) high cognitive ability, to reason, to fasion tools (neurological)
Specific to humans

c) inability to generate carbohydrates by means of photosynthesis (metabolic)
Characteristic of all animals

d) possessing bilateral symmetry (morphological)
Characteristic of all animals

e) upright, semi-upright posture (morphological)
Specific to humans

This definition of humans excludes all primates as they lack of a high cognitive ability and cannot walk upright or in a semi-upright posture unassisted.

Problem
Most fundamental to most definning
c) inability to generate carbohydrates by means of photosynthesis (metabolic)
d) possessing bilateral symmetry (morphological)
a) production of milk for the young (reproductive, physiological)
b) high cognitive ability, to reason, to fasion tools (neurological)
e) upright, semi-upright posture (morphological)

Exclusion of animal groups by each characteristics WHERE IS DOLPHINS PLACED?
c) inability to generate carbohydrates by means of photosynthesis (metabolic)
Excludes: Photosynthetic bacteria, Euglena (a protist with chloroplast), Ginkgo biloba (tree),

d) possessing bilateral symmetry (morphological) (bilateral=left and right side that are non-identical)
Excludes: Echinoderms (starfish are radial, many sides that are identical), sponges (also radial), jellyfish (radial)

a) production of milk for the young (reproductive, physiological)
Excludes: Birds, reptiles, amphibians

b) high cognitive ability, to reason, to fasion tools (neurological)
Exludes: Bats, tarsiers, lemurs,

e) upright, semi-upright posture (morphological)
Excludes: Monkeys, Beavers

Beavers are known to use their tails as communication tools though this may be debatable characteristics included in b).

Purchase this Solution
Solution Summary

In this solution I organize organisms into the appropriate phylogenetic categories using the describes in a provided key, defining terms as needed. The organisms include: bats, monkeys, Euglena, lemurs, sponges, amphibians, dolphins, Ginkgo, biloba, jellyfish, reptiles, birds, beavers, echinoderms, tarsiers, and photosynthetic bacteria.

Solution Preview

Your question and my response are listed below. I've also attached this entry in Microsoft Word format. Good Luck!!

QUESTION:

Categorizing groups of organisms

I have already categorized the following "Groups of Organisms," except for DOLPHINS. Where would it be placed in the problem below?

bats, monkeys, Euglena, lemurs, sponges, amphibians, dolphins, Ginkgo, biloba, jellyfish,
reptiles, birds, beavers, echinoderms, tarsiers, photosynthetic bacteria

Exclusion of animal groups by each characteristics WHERE IS DOLPHINS PLACED?

c) inability to generate carbohydrates by means of photosynthesis (metabolic)
Excludes: Photosynthetic bacteria, Euglena (a protist with chloroplast), Ginkgo biloba (tree),

d) possessing bilateral symmetry (morphological) (bilateral=left and right side that are non-identical)
Excludes: Echinoderms (starfish are radial, many sides that are ...

Purchase this Solution
Free BrainMass Quizzes
How Well Do You Know Your Body?

This quiz will assess the different systems of the human body. It will examine everything from the organs to the cellular processes that occur.

Biochemistry Basics

A refresher quiz to test your knowledge of basics concepts of biochemistry.

Creating a Birth Plan

Preparing for a birth and want to make sure that you're including all the right information? Use this quiz to get on the right track and check your birth plan knowledge!

Do You Know Your Macromolecules?

This quiz will assess your knowledge of the macromolecules that are important to living things.

Human Anatomy- Reproductive System

Do you know your reproductive anatomy?

View More Free Quizzes
Related BrainMass Solutions

  • Classification of Organisms Using a Dichotomous Key

    354374 Classification of Organisms using a Dichotomous Key Find the phylum and/or class that the organism belongs to using the dichotomous key. Please see attachments.

  • The use of a dichotomous key

    A dichotomous key is an organized set of mutually exclusive characteristics of biological organisms. You simply compare the characteristics of an unknown organism (in this case each picture you've provided) against an appropriate dichotomous key.

  • Taxonomic Category and Dichotomous Key

    Multiple examples are given and a dichotomous key is is created for the organisms in the question set. Site links are included for further topic exploration.

  • Animal Classifications

    Organism Phyla Dichotomous Key (steps) Classification Use the Dichotomous Key to determine the taxonomic category (phylum or class as shown on the key) for each animal (picture), and write these categories under the Classification Column on

  • How to make and solve a classification key

    Many students of biology struggle with the technique of using a key to classify organisms.

  • Animal Phyla Classification

    List in column 2, all of the dichotomous key steps chosen when using the key to arrive at the classification for each animal. Also list the Phylum name for each animal picture in column one using the nine Phyla listed above.

  • How to use a dichotomous key and genetic engineering

    61267 Using a dichotomous key Part 1: Submit a list , Organism 1 through Organism 7,(Attached) with your decision about the classification for each, as well as the choices you made for each step on the key.

  • Dichotomous Key

    For help on how to use the Dichotomous Key, download and review the document called How to use the Dichotomous Key. Part 2: Answer the following questions as it relates to the nine phyla in the assignment table.

  • Microbial Organisms

    Organisms have been classified by using phenetics, phylogenetics, and cladistics. Phenetics relies on the appearance of organisms and so would group organisms based on physical similarities.

View More Related Solutions