The form and size of algae vary considerably. They are as follows:
Unicellular: Chlorella, Spirulina, etc.
Multicellular: Gracilaria, Gelidium, etc.
Branched: Laminaria
Colonial: Volvox
Filamentous: Ulothrix, Anabaena, Spirogyra.
Which of the following pairs is of unicellular algae?
Held on 30 Apr 2020 · Verified 9 Jul 2026.
Gelidium and Gracilaria
Anabaena and Volvox
Chlorella and Spirulina
Laminaria and Sargassum
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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.
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:
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In bryophytes, the gemmae help in which one of the following?
Work through every NEET UG Plant Kingdom PYQ, year by year.