TEST OF PRACTICAL KNOWLEDGE QUESTION Study specimens H and J and answer questions 2(a) to 2(d). (a)i) Name the Kingdom and Class of organisms from which spe...

TEST OF PRACTICAL KNOWLEDGE QUESTION

 Study specimens H and J and answer questions 2(a) to 2(d).

(a)i) Name the Kingdom and Class of organisms from which specimen H could be obtained.

(ii) Name the specific location on the body of the organism from which specimen H could be obtained.

(iii) Name one example of organism from which specimen H could be obtained.

(bi) State six observable structural differences between specimens  H and J. 

(c) State one function each of specimens H and J to the organisms that possess them. H:(ii) State three observable structural similarities between specimens H and J.

(d) Mention: (i) three observable features that adapt specimen H to the function stated against it in 2(c);

(i) two observable features that adapt specimen J to the function stated against it in 2(c).

Answer Details

(a)

i)

Kingdom and Class of Organism from which Specimen H (quill feather) could be Obtained:

Kingdom -->Animalia

Class --> Aves

(ii)

Location on the Body of Organism from which Specimen H (quill feather) could be Obtained: Wing (s) or tail(s).

(iii)

Example of Organism from which Specimen H (quill feather) could be Obtained Chicken, pigeon, domestic fowl, cock, hen, vulture, ostrich, duck, gull.

(b)

(i) Differences between Specimens H & J:

ii)

Similarities between Specimen and J:

- They both possess point attachment; they both posses apex

- They both have margin

- Both have glossy surface.

(c)

Functions of specimen H (quill feather) and Specimen J (palm frond) to the organism that posses them

Specimen H:

-Flight/flying

- Insulation

-Camouflage

- Sexual / courtship display

- Protection

- Waterproof

- Gives shape.

Specimen J: Photosynthesis manufacture of food /transpiration. gaseous exchange.                                                                                                                                         

(d)

Observable Features that Adapt Specimens H and J to their Functions:

Specimen H (quill feather):

- Strong and firm, to beat against air/wind/protection/insulation

-Hollow shaft / rachis/light weight; for buoyancy

- Interlocking barbules/closely packed barbs for upthrust, color for camouflage 

- Courtship display/identification

- Glossy surface for waterproof.

Specimen J (Palm frond):

- Green colour for photosynthesis

- Veins; for conduct / transport of water/nutrient / food

- Glossy/waxy surface; makes it waterproof.