Answer : Option BExplaination / Solution:
ICBN stands for International code of botanical nomenclature that frames rules for nomenclature of plants applicable for all over the world.
Q4.Vascular bundles in which cambium is present between xylem and phloem is called as
Answer : Option AExplaination / Solution:
Vascular bundles in which cambium is present between xylem and phloem is called open vascular bundles and those in which cambium is absent is called closed vascular bundles.
Answer : Option CExplaination / Solution:
Phytochrome is a photoreceptor and a pigment that plants, and some bacteria and fungi, use to detect light. It is sensitive to light in the red and far-red region of the visible spectrum.
Answer : Option BExplaination / Solution:
Sparrow feeds on fruits as well insects. Herbivores or plant eaters are primary consumer and carnivores that feed on herbivores are secondary consumer. So, Sparrow occupy both primary and secondary trophic levels.
Q10.The mean of ten numbers is 58. If one of the numbers is 40, what is the mean of the other nine?
Answer : Option BExplaination / Solution: Mean is calculated as the sum of the values of all observations divided by the number of observations Mean = 58, N= 10 sum of the values of all observations = 58 x 10 = 580 Corrected sum of the values of all observations = 580 - 40 = 540 Corrected number of observations = 10 – 1 = 9 Correct Mean = 540/9 = 60
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