Mycorrhizal infections in forest trees is an example of:

 a) Parasitism
 b) Symbiosis
 c) Competition
 d) Predation

Environment Program Manager-2017

Symbiosis

A special root-like structure in cuscuta and viscum is called:

 a) Rhizoids
 b) Haustoria
 c) Hyphae
 d) Stolens

TNPSC-2016

Haustoria.

Which acid is present in the Soya beans?

 a) Malic acid
 b) Capric acid
 c) Phytic acid
 d) Oxalic acid

Range Forest-2016

Phytic acid.

Edible part of coconut is:

 a) Epicarp
 b) Endocarp
 c) Endodermis
 d) Endosperm

KPSC-2016

Endosperm.

Casuarinas is a:

 a) hydrophyte
 b) xerophyte
 c) mesophyte
 d) epiphyte

SSC CGL-2015

xerophyte.

Bark of this tree is used as a codiment:

 a) Clove
 b) Cinnamon
 c) Palm
 d) Neem

SSC CGL-2015

Cinnamon.

Which acid is present in Rice?

 a) Capric acid
 b) Formic acid
 c) Ascorbic acid
 d) Phytic acid

SSC CGL-2015

Phytic acid.

Strobilus is a structure associated with

 a) Pea
 b) Potato
 c) Pinus
 d) Palm

SSC JE-2013

Pinus. Strobilus is the cone of a pine.

Which one of the following is not a photosynthetic pigment?

 a) Chlorophyll
 b) Phycobilin
 c) Carotenoid
 d) Anthocyanin

SSC CHSL-2015

Anthocyanin

Which is the useful part of Coffee?

 a) Seed
 b) Stem
 c) Leaf
 d) Flower

Seed.

'Biosphere' was firstly used by

 a) Brend Land
 b) Edward Suess
 c) Martin Luther
 d) Edward Jenner

KPSC Jr Instructor-16

Edward Suess The term "biosphere" was coined by geologist Eduard Suess in 1875

The bacteria found in the root nodules of leguminous plants are

 a) Clostridium
 b) Azetobactor
 c) Nitrobacter
 d) Rhizobium

KPSC Forest Officer-16

Rhizobium.

The term Ecotone is defined as

 a) The most extensive ecosystem unit which is convenient to designate
 b) Transistion area between two biomes
 c) The vegetation community developed at the last stage of biotic succession
 d) None of the above

KPSC Forest Officer-16

Transistion area between two biomes.

Mycorrhizal association is present in

 a) Fruits
 b) Leaves
 c) Roots
 d) Trunk

KPSC Forest Officer-16

Roots.

The plant community that grow in a marshy saline habitat are called

 a) Xerophytes
 b) Hydrophytes
 c) Mesophytes
 d) Mangroves

KPSC Forest Officer-16

Mangroves.

The adaptation sunken stomata are found in

 a) Xerophytes
 b) Mesophytes
 c) Hydrophytes
 d) Halophytes

KPSC Forest Officer-16

Xerophytes.

Endemic plants are identified as the plants growing in

 a) Tissue of other plants
 b) Shady places
 c) Fresh water lakes
 d) Geographically limited areas

KPSC Forest Officer-16

Geographically limited areas.

The term Edaphic factors refers to

 a) Man
 b) Soil
 c) Temperature
 d) Herbivores

KPSC Forest Officer-16

Soil.

The site of dark reaction in photosynthesis is

 a) Grana
 b) Cytoplasm
 c) Endoplasmic reticulum
 d) Stroma

KPSC Livestock Insp-16

Stroma.

The Fluid Mossaic model on the structure of plasma membrane was given by

 a) Camillo Golgi
 b) Gregor Johann Mendel
 c) Watson and Crick
 d) Singer and Nicolson

KPSC Welfare organiser-2016

Singer and Nicolson.