5.(a) State three differences between the alimentary canals of earthworm and cockroach.
(i) State three similarities between the alimentary canals of earthworm and cockroach.
(b) The diagram below is an illustration of a biological cycle.
Study it and answer questions 5(b)i) to 5(b)(iii)
[i]Name the biological cycle (i) Explain briefly three roles played by plants and animals in the cycle (ii) Name the process that occur in X, Y and Z.
c. complete the table below.
| organs associated with excretion in human | three diseases that affect the organ |
(d)i) What is decay of organic matter
(i) Name two groups of organisms that cause decay of organic matter.
(i) State one other factor that causes decay.
(iv) Name the biological cycle that involves decay.
(e) Explain briefly the mode of nutrition in carnivorous plants.
Explanation
[a][i]
| Earthworm | cockroach |
|
Simple/sucking mouth parts |
elaborate/biting/chewing mouth parts |
| Simple/sucking mouth parts |
alimentary canal divided into fore gut, mid gut and hind gut developed |
|
Absence of mesenteric presence of mesenteric |
presence of mesentric caecum |
|
No malpighian tubules attached |
malphigian tubules attached to canals |
(i) Similarities
Both
a. Mouth c. Gizzard e. Oesophagus
(b) Name of biological cycle
Water
(ii) a. Plants and animals produce water as a product of respiration.
b. Plants give-off water through transpiration
c. Animals give off water perspiration/sweating/ urinating/excretion
d. Plants absorb water/animals drink water body metabolism.
(iii) x - Condensation
y - Evaporation
z - Evaporation
| organs associated with ecretion in human | Three diseases that affect the organ |
|
kidneys |
nephritis,kidney,stones,diuresis,kidney cancer,polycystic kidney disease,diabetes,[inspidius] |
| liver | cirrhosis,hepatitis,jaundice,dropsy,gall stones,diabetes,(mellitus),cancer |
| skin | scabies,ringworm,acne,eczema,boil,leprosy,cancer,dermatitis,cancer. |
| lungs | bronchitis,cancer,asthma,tuberculosis,pulmonary fibrosis. |
d[i] Decay
Is the breakdown of complex organic matter, into small compounds, so that their nutrient can be absorbed.
(ii) Saprophytes/fungi, bacteria, detritivores/decomposers
(i) a. Temperature/Heat warmth
b.Osmotic pressure
c.Amount of water
d.Amount of oxygen
iv) Carbon; Nitrogen
(e) a. They obtain nutrients from trapped insects and other small animals
b. The trapped insects are digested
c. And the amino acids are absorbed
d. Carnivorous plants grow on soils that are poor in nitrogen
e. Animal proteins supplement the nitrogenous compounds.