Ecology is the study of an individual species is called
i) Community ecology
ii) Autecology
iii) Species ecology
iv) Synecology

(a)

 i only

(b)

ii only 

(c)

 i and iv only

(d)

ii and iii only

Read the given statements and select the correct option.
i) Hydrophytes possess aerenchyma to support themselves in water.
ii) Seeds of Viscum are positively photoblastic as they germinate only in presence of light.
iii) Hygroscopic water is the only soil water available to roots of plant growing in soil as it is present inside the micropores.
iv) High temperature reduces use of water and solute absorption by roots

(a)

i, ii, and iii only

(b)

ii, iii and iv

(c)

ii and iii only

(d)

i and ii only

Read the given statements and select the correct option.
i) Loamy soil is best suited for plant growth as it contains a mixture of silt, sand and clay.
ii) The process of humification is slow in case of organic remains containing a large amount of lignin and cellulose.
iii) Capillary water is the only water available to plant roots as it is present inside the micropores.
iv) Leaves of shade plant have more total chlorophyll per reaction centre, low ratio of chl a and chl b are usually thinner leaves.

(a)

i, ii and iii only

(b)

ii, iii and iv only

(c)

i, ii and iv only

(d)

ii and iii only

In soil water available for plants is ____.

(a)

gravitational water

(b)

chemically bound water

(c)

capillary water

(d)

hygroscopic water

Ophrys an orchid resembling the female of an insect so as to able to get pollinated is due to phenomenon of ______.

(a)

Myrmecophily

(b)

Ecological equivalents

(c)

Mimicry

(d)

None of these

Which of the following plant has a non-succulent xerophytic and thick leathery leaves with waxy coating

(a)

Bryophyllum

(b)

Ruscus

(c)

Nerium

(d)

Calotropis

Sticky glands of Boerhaavia and Cleome support _______.

(a)

Anemochory

(b)

Zoochory

(c)

Autochory

(d)

Hydrochory

Statement 1: Latitudes represent distance from the equator.
Statement 2: Height above the seal level from longitude.

(a)

Statement 1 is correct. Statement 2 is incorrect

(b)

Statement 1 is incorrect. Statement 2 is correct

(c)

Both the statements are correct.

(d)

Both the statements are incorrect

Statement 1: Ephemerals are drought evaders.
Statement 2: They are not true xerophytes.

(a)

Statement 1 is correct. Statement 2 is incorrect.

(b)

Statement 1 is incorrect. Statement 2 is correct.

(c)

Both the statements are correct.

(d)

Both the statements are incorrect

Utricularia is a __________.

(a)

Rooted floating hydrophyte

(b)

Submerged floating hydrophyte

(c)

Rooted submerged hydrophyte

(d)

Amphibious hydrophyte