Which of the following has multiflagellate sperms?
Equisetum
Riccia
Lycopodium
Anthoceros
A.
Equisetum
In Equisetum, the anterior part of the antherozoid (sperm) is spirally coiled and has numerous flagella, whereas posterior part is somewhat expanded. The sperms of Lycopodium, Riccia and Anthoceros are biflagellated.
The chief advantage of encystment of an Amoeba is
protection from parasites and predators
the chance to get rid of accumulated waste products
the ability to survive during adverse physical conditions
the ability to live for sometime without ingesting food
Which of the following is important source of edible protein?
Spirogyra
Porphyra
spirulina
Cephaleuros
The oldest fossil belongs to which of the following group of plants/ animals?
Asteriodae
Rhodophyceae
Blue- green algae
Phaeophyceae
In which kingdom, would you classify the archaea and nitrogen-fixing organisms. If the five-kingdom system of classification is used?
Protista
Monera
Plantae
Fungi
In Whittaker's system of classification, prokaryotes belong to the kingdom
Monera
Protista
Animalia
Fungi
In Amoeba hyaline cap is formed by
around the food vacuole
around the contractile vacuole
around the nucleus
on pseudopodia
