HELLO STUDENTS: DAY- 12 Morning
1.IMPORTANT CORRECT SEQUENCES OF STRUCTURES AND STEPS IN BIOLOGICAL CONCEPTS :
*Choose to correct sequence of events during sexual reproduction in humans
Gametogenesis>Insemination>fertilisation>implantation>gestation>parturition
*Choose the correct order for the path of sperm from the testes to outside the body
Epididymis>ductus deferens>ejaculatory duct>penis
*The sequence of communities of primary succession in water is:
Phytoplankton,rooted submerged hydrophytes, floating hydrophytes,reed swamp,meadow and trees.
*Correct sequence for decomposition process is :
Fragmentation>leaching>catabolism>mineralisation
*Correct decreasing order for rate of primary productivity on land will be :
Tropical rainforests>Temperate forests>Savannah>Arid regions
*The correct sequence of plants in a hydrosere is :
Volvox>Hydrilla>Pistia>Scirpus>Lantana>Oak
*The most accepted line of descent in human evolution is :
Ramapithecus>Homo habilis>Homo erectus>Homo sapiens
*The chronological order of human evolution from early to the recent is :
Ramapithecus>Australopithecus>Homo habilis>Homo erectus
*Arrange the following in the order of their evolution :
Dryopithecus>Ramapithecus>Australopithecus>Homo habilis>Homo erectus>Neanderthal man>Homo sapiens
*Identify the correct order of organization of genetic material,from largest to smallest :
Genome, Chromosome,gene, nucleotide
*In the lac operon the order of segments in the DNA is:
Promoter,Operator, Galactosidase,Permease,Transferase
Mr.R.Soundarapandian, MSc, MEd, MPhil,
PG Asst Zoology
SIR MCTM Boys Higher Secondary School,
SIR MCTM Boys Higher Secondary School,
Purasawalkam Chennai-84.
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