Q1.Transport over longer distances proceeds through the vascular system
Answer : Option BExplaination / Solution:
Translocation is a biological process that occurs in all plants and involves the movement of water and other soluble nutrients through the xylem and phloem from one part of the plant to another.
Q2.State which are lagging behind in health care facilities are
Answer : Option DExplaination / Solution:
States like Bihar, Madhya Pradesh, Rajasthan and Uttar Pradesh are relatively lagging behind in health care facilities.
Q5.A typical angiospemic embryo sac is though 8 nucleate is 7-celled. 8 nuclei includes
Answer : Option BExplaination / Solution:
A typical angiospermic embryo sac contains 8 nuclei which includes 3 egg apparatus at micropylar end, 3 antipodal cells at chalazal ends and 2 polar nuclei at the centre of embryo sac.
Q8.If vital index is >100 then the population will
Answer : Option AExplaination / Solution:
Vital index is the ratio of births to deaths within a population during given time. If vital index is greater than hundred then the population will decreasing showing negative growth.
Q9.Element required for germination of pollen grain is
Answer : Option BExplaination / Solution:
Elements play important role in completing life cycles of plants. Element required for germination of pollen grain is Boron.