The given diagram shows different parts of human eye with one part labeled as X. Which the following statement is correct regarding label X?

In dicots, the most common pollen tetrad is:

Which of the following plants yields oil and fibre both?

Which of the following statement (s) is/are correct? (i) According to the WHO, reproductive health is total well-being in the physical, social, emotional, behavioural aspects of reproduction. (ii) According to the WHO, reproductive health is total well-being in the physical, social and emotional aspects of reproduction. (iii) A reproductively healthy society has people with physically and functionally normal reproductive organs. (iv) Reproductively healthy societies have abnormal sex-related emotional and behavioural interactions.

Read the assertion and reason carefully: Assertion            :     Whole compound leaf of Clematis converts into tendril. Reason              :     Gloriosa superba shows whole leaf tendril.

The given figure refers to reproductive system of female cockroach. Choose the correct of non-showing the correct labellings indicated by A,

In cockroach, the number of ganglia are:

Read the assertion and reason carefully: Assertion            :     Actinomorphic flowers show radial symmetry. Reason              :     Zygomorphic flowers have bilateral symmetry.

Reproductive health in society  can be improved by: (i) Introduction of sex education in schools. (ii) Increased medical assistance. (iii) Awareness about contraception and STDs. (iv) equal opportunities to male and female child. (v) Ban on aminocentesis. (vi) Encouraging myths and misconceptions.

Which statement does not reflect a reason why grasses predominate in savannah?