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WorksheetsC9 Ecosystem F5 DLP
Total questions: 10
Worksheet time: 58mins
Which are the correct biotic and abiotic components of a sea ecosystem?
A
B
C
D
Figure shows an ecosystem.
Among the organism A, B, C and D, which is at the highest trophic level?
A
B
C
D
Which statement defines population?
A. Community of living organisms which interact with one another.
B. Role. and function of an organism in an ecosystem
C. A group of organisms in the same species
D. Nature inhabited by an organism
The statements below are the features of an organism.
-produce own food
-lives on other pplants
What is the organism?
A. Epiphytes
B. Epizoic
C. Parasite
D. Commensal
Figure shows pyramid of energy of a food chain.
Which biotic components has the lowest energy value?
A. Producer
B. Primary consumer
C. Secondary consumer
D. Tertiary consumer
Figure shows different zones in a mangrove swamp.
What is the pioneer species in zone X?
A. Avicennia sp.
B. Sonneratia sp.
C.. Rhizophora sp.
D. Brugueira sp.
The crab haul in a river decreases drastically after the mangrove swamp at the riverbank was developed into an industrial area. Which species of mangroves have to be replanted to increase the crab population in the area?
I. Avicennia sp.
II. Sonneratia sp.
III. Rhizophora sp.
IV. Brugueira sp.
A. I and II
B. I and III
C. II and IV
D. III and IV
A group of students made a 1 m x 1 m quadrat o study the density of plant X in a school field. The number of plant X in each quadratic was recorded in the table given below.
What is the density of plant X. in the field?
A. 4
B. 6
C. 8
D. 10
The number of snails in a herbal garden is estimated using a quadratic sampling technique. Why is the technique suitable?
A. Snails are not easily infected with diseases.
B. Snails move slowly.
C. Snails are easily seen.
D. Snails are not poisonous
Two species, X and Y have a relationship inn which both gain benefit. What is the relationship?
A. Commensalism
B. Saprophytism
C. Parasitism
D. Mutualism
