Question

Selaginella and Salvinia are considered to represent a significant step towards evolution of seed habit because:

A. female gametophyte is free and gets dispersed like seeds

B. female gametophyte lacks archaegonia

C. megaspores possess endosperm and embryo surrounded by seed coat

D. embryo develops in female gametophyte which is retained on parent sporophyte

Answer : embryo develops in female gametophyte which is retained on parent sporophyte

Releted Question 1

Which of the following pairs is of unicellular algae?

A. Gelidium and Gracilaria

B. Anabaena and Volvox

C. Chlorella and Spirulina

D. Laminaria and Sargassum

Releted Question 2

A. Amylopectin and glycogen

B. Mannitol and algin

C. Laminarin and cellulose

D. Starch and cellulose

Releted Question 3

A. Uniflagellate gametes – Polysiphonia

B. Biflagellate zoospores – Brown algae

C. Unicellular organism – Chlorella

D. Gemma cups – Marchantia

Releted Question 4

A. Neurospora

B. Alternaria

C. Saccharomyces

D. Agaricus