Name all the dead tissues present in a 20 years old healthy neem tree.

Site of erythropoiesis in 20 year old healthy male is

Name various types of simple tissues present in a plant.

Name all the haploid cells present in an unfertilised mature embryo-sac of a flowering plant. Write the total number of cells in it.

Name all the haploid cells present in an unfertilized mature embryo-sac of a flowering plant. Write the total number of cells in it.

Name all the haploid cells present in an unfertilized mature embryo-sac of a flowering plant. Write the total number of cells in it.

Name the tissue present in soft part of the plant like cortex and pith of stem.

Name the meristematic tissue present in the cortex of the stem. Which secondary tissues does it give rise to ?

Read the following statements and select the correct option. Statement-1: Anatomically, all the tissues present on the inner side of endodermis such as pericycle, vascular bundles and pith constitute the stele. Statement-2: Eustele is the stele in which vascular bundles are arranged in the form of a ring as present in dicot stems.

In 10 years, A will be twice as old as B was 10 years ago. If at present A is 9 years older than B , then present age of B is :

What is the dead wood present in the centre of a tree known as?