Get premium membership and access questions with answers, video lessons as well as revision papers.

You are provided with photographs of animals. Study the photographs and the dichotomous key below to enable you identify the taxonomic group to which each...

      

You are provided with photographs of animals. Study the photographs and the dichotomous key below to enable you identify the taxonomic group to which each animal belongs.
pic13920191511.png
KEY
1. a) Jointed legs present ………………………………………………………………go to 2
b) Jointed legs absent………………………………………………………………..go to 7
2. a) Three pairs of legs ………………………………………………………………..go to 3
b) More than 3 pairs of legs………………………………………………………….go to 5
3. a) Wings present …………………………………………………………………….go to 4
b) Wings absent………………………………………………………………………Anoplura
4. a) One pair of wings…………………………………………………………………Diptera
b) Two pairs of wings……………………………………………………………Hymenoptera
5. a) Four pairs of legs ………………………………………………………………… Arachnida
b) More than ten pairs of legs ………………………………………………………. go to 6
6. a) One pair of legs in each body segment…………………………………………… Chilopoda
b) Two pairs of legs in each body segment ………………………………………… Diplopoda
7. a) Body partially enclosed in a shell………………………………………………… Mollusca
b) Body surface has spiny projection…………………………………………….Echinodermata
a) Using the key, identify the following organisms to their taxonomic groups. In each case, give the sequence of steps which you followed in identifying them.
pic13920191513.png
b) i) Using observable features only, state the class to which the animal labeled A and B on the photographs above belong.State two observable features on B, that enabled you to arrive at that answer in (b) (i) above.

  

Answers


sharon
pic13920191520.png
b) i) A - Arachnida;
B - Insecta;
i) Has three pairs of legs;
ii) Has three body parts;
sharon kalunda answered the question on September 13, 2019 at 12:22


Next: Outline four benefits received by a student who finished form four and had done business studies as a subject.
Previous: Explain the meaning of homoiothermic.

View More Biology Questions and Answers | Return to Questions Index


Learn High School English on YouTube

Related Questions