List of practice Questions

The product of three numbers in an $A.P$. is $224$, and the largest number is $7$ times the smallest. Find the numbers.

The sum of all $4$ digit numbers that can be formed by using the digits $2, 4, 6, 8$ (repetition of digits not allowed) is

The sum of all the five digit numbers formed with the digits $1, 2, 3, 4, 5$ taken all at a time, is

The sum of $5$ digit numbers in which only odd digits occur without any repetition is

The sum of all the numbers formed by using the digits 7, 8, 9 is

An example for artificial system of classification is

A microsporophyll in Pinus has

Engler and Prantl published a phylogenetic system in the monograph

Which of the following pteridophyte is heterosporous in nature?

Which of these is mismatched ?

Which one of the following is called maiden-hair fern ?

In the classification of plants, the term cladistics refers to the

Which of the following is a phaeophycean alga ?

The heterosporous pteridophyte belonging to the class lycopsida is

The diagram represents the life cycle pattern of an angiosperm. Choose the correct combination of labelling numbered as 1 to 5.

Choose the correct order of colours with respect to pigments ? chlorophyll, phycoerythrin and fucoxanthin

Consider the following statements regarding gymosperms and choose the correct option (a) In gymnosperms, the male and female gametophytes have an independent existence (b) The multicellular female gametophyte is retained within megasporangium (c) The gymnosperms are heterosporous. Of these statements:

Identify the alga which exhibits diplontic life cycle

Which of the following Pteridophytes belong to class Pteropsida?

Which of the following is a character of Rhodophyceae?

Which of the following groups of algae belongs to class Rhodophyceae?

Rolling alga is

Aquatic Horsetail is

Female sex organ of Chara is known as

Sargasso sea is part of