Classification of living things questions | form four Biology

Presence of placoid scales is a distinguishing characteristic of glass

1. Chondrichthyes
2. Osteichthyes
3. Reptilia
4. Aves.

Which of the following criteria could be used to separate planarians and tapeworms into different classes?

1. Protruding eyes
2. Proglottides
3. Ability to regenerate a lost body part
4. Habitats and modes of life.

You have been provided with specimens T1, T2 and T3

1. Using a hand lens, study the specimens carefully and;

1. Identify each specify by its common name
2. Classify each specimen T1, T2 and T3 from Kingdom to Phyla / Division level.
3. Why specimen T2 is said to have advantages to a farmer?
4. Identify four general characteristics which influenced you to place specimen T3 in the Phyla/ Division you named in (a) (ii)
5. Draw a well labelled diagram of specimen T3.

2. Study carefully Specimen T1 and T2 and ;

1. State two observable differences between T1 and T2
2. State the habitats of each specimen T1, T2 and T3.

You are provided with specimens A, B, C,D and E

1. i. State the common name of each specimen

2. Classify each specimen B, C and E to the class level
3. State two observable features which have enabled you to place specimen B, C and E in their respective classes

2. i. State the habitat of specimen C

2. Explain two adaptations shown by specimen C to its environment

100. Name the lowest classification rank under which specimen A and D can be grouped together

500. Using examples explain two advantages of the Kingdom in which specimen E belongs.

List any three characteristics of the Phylum Arthropoda.

(i) Mention the Classes of the Phylum Arthropoda
(ii) Name one representative member for each Class you have mentioned in (i).

Reptiles differ from birds because:

1. Reptiles do not lay eggs while birds do
2. Reptiles have a backbone while birds do not
3. Reptiles have scales while birds do not
4. Reptiles are cold blooded while birds are warm blooded
5. Reptiles have moist skin while birds have dry skin

(a) Some insects are harmful and some are useful to man. Argue for this statement by giving three examples for each.
(b) In what way are earthworms important to farmers?

The following organisms belong to the phylum Arthropoda:Mosquito,scorpion, grasshopper, crab, millipede, termite,beetle, spider, butterfly, tick, centipede,prawn, cockroach, moth and housefly. This phylum is further divided into five(5) classes;

1. Group the organisms according to their respective classes
2. Write down two(2) characteristics that all Arthropods have in common.

In which Phylum do filarial worms belong?
A Annelida
B Nematoda
D Platyhelminthes
E Chordata
C Anthopoda