Hydrocolloid carrageen is obtained from:

The correct sequence of events in the life cycle of bryophytes is A. Fusion of antherozoid with egg. B. Attachment of gametophyte to substratum. C. Reduction division to produce haploid spores. D. Formation of sporophyte. E. Release of antherozoids into water. Choose the correct answer from the options given below :

In bryophytes, the gemmae help in which one of the following?

Which one of the following is the characteristic feature of gymnosperms?

Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence. A. Prothallus stage B. Meiosis in spore mother cells C. Fertilisation D. Formation of archegonia and antheridia in gametophyte. E. Transfer of antherozoids to the archegonia in presence of water. Choose the correct answer from the options given below:

Match List-I with List-II. $\begin{array}{|l|l|l|l|}\hline & \text{List-I} & & \text{List-II} \\\hline \text{A}. & \text{Pteridophyte} & \text{(I)} & \text{Salvia} \\\hline \text{B.} & \text{Bryophyte} & \text{(II)} & \text{Ginkgo} \\\hline \text{C.} & \text{Angiosperm} & \text{(III)} & \text{Polytrichum} \\\hline \text{D.} & \text{Gymnosperm} & \text{(IV)} & \text{Salvinia} \\\hline\end{array}$ Choose the option with all correct matches.