Samacheer Kalvi Class 12 Principles of Ecology Questions - 1

Question: 1

Which of the given plant produces cardiac glycosides?

(A) Acacia

(B) Calotropis

(C) Utricularia

(D) Nepenthes

Question: 2

The plant of this group are adapted to live partly in water and partly above substratum and free from water

(A) Hydrophytes

(B) Halophytes

(C) Mesophytes

(D) Xerophytes

Question: 3

Strong, sharp spines that get attached to animal’s feet are found in the fruits of

(A) Argemone

(B) Crossandra

(C) Ecballium

(D) Heraitier

Question: 4

The study of soil is called as ______

(A) Pedology

(B) Lithotripsy

(C) Lithosphere

(D) Pedology analysis

Question: 5

Utricularia is a ______

(A) Amphibious hydrophyte

(B) Rooted floating hydrophyte

(C) Rooted submerged hydrophyte

(D) Submerged floating hydrophyte

Question: 6

Autoecology deals with the study of ______

(A) Individual species

(B) Niche of species

(C) Community

(D) Population

Question: 7

Pedogenesis refers to

(A) Soil

(B) Fossils

(C) Population

(D) Water