Assuming that A is the gene for normal skin colour and is dominant, while a is the gene for albinism…
An apple plant can produce sexually and asexually and it has 40 chromosomes in its leaf cells. A. 20 chromosomes…
A. shape of the nose B. colour of skin C. colour of hair D. tongue rolling Correct Answer: Option D…
A. continuous variation B. discontinuous variation C. morphological variation D. environmental variation Correct Answer: Option B B. discontinuous variation
A. Air B. Petroleum C. Food crop D. Soil Correct Answer: Option B B. Petroleum
A. Afforestation B. Damming C. Deforestation D. Reforestation Correct Answer: Option C C. Deforestation
A. conserving natural resources B. cultivating game C. controlling pollution D. cultural awareness Correct Answer: Option A A. conserving natural…
A. Hydra and Sea anemone B. Hermit crab and Sea anemone C. Dodder plant and Cocoa plant D. Mistletoe and…
A. Polythene bag B. Cotton bag C. Hides and Skin bag D. Paper bag Correct Answer: Option A A. Polythene…
A. Efficiency of energy transfer between trophic levels can be studied B. Comparisons of pyramids for different ecosystems can be…