The cortex of a herbaceous stem is made up of
- A. collenchyma and parenchyma
- B. collenchyma and sclerenchyma
- C. parenchyma and sclerenchma
- D. pericycle and endodermis
- E. sclerenthyma and endodermis
Fern plants carry out Photosynthesis in the
- A. frond
- B. rhizome
- C. sorus
- D. stolon
- E. thallus
The basic unit of classification of living things is the
- A. class
- B. genus
- C. kingdom
- D. phylum
- E. species
Which of the following is bryophyte?
- A. Bladderwort
- B. Flytrap
- C. Liverwort
- D. Pitcher
- E. Sundew
Which of these influences growth movement in plants?
- A. Acetic acid
- B. Auxins
- C. Chlorophyll
- D. Enzyme
- E. Ethylene
What will be the phenotypic ratio in the f1 generation, if a dominant red flowered plant (RR) is crossed with recessive white flowered plant (rr)?
- A. 1 red : 1 white
- B. 2 red : 0 white
- C. 3 red : 1 white
- D. 4 red : 0 white
- E. 4 red : 4 white
The products of respiration in higher plants are
- A. carbondioxide, energy and starch
- B. carbondioxide, energy and water
- C. carbondioxide, oxygen and water
- D. carbondioxide, starch and water
- E. glucose, energy and water
Excess amino acids are converted into urea by the
- A. heart
- B. kidney
- C. liver
- D. muscles
- E. spleen
These processes are involved in asexual reproduction EXCEPT
- A. budding
- B. fertilization
- C. fission
- D. spore formation
- E. vegetative propagation
The following plants have self-pollinated flowers EXCEPT?
- A. groundnut
- B. okra
- C. rice
- D. wheat
In mammals, tissue respiration takes place in the
- A. alveoli
- B. cells
- C. lungs
- D. nose
- E. trachea
Over-grazing encourages soil
- A. acidity
- B. conservation
- C. erosion
- D. fertility
- E. formation
Villi are finger-like structures found in the
- A. large intestine
- B. rectum
- C. small intestine
- D. stomach
- E. tongue
Which of these is NOT a pollutant?
- A. Carbondioxide
- B. Lead oxide
- C. Nitrogen gas
- D. Nitrogen oxide
- E. Sulphur dioxide
Which of these organisms reproduces by budding?
- A. Amoeba
- B. Euglena
- C. Hydra
- D. Paramecium
- E. Volvox
In a moss plant, spores are produced in the
- A. capsule
- B. leaf
- C. rhizoid
- D. seta
- E. stalk
Which of the following functions of the body are nephrons associated with?
- A. Circulation
- B. Digestion
- C. Excretion
- D. Reproduction
- E. Respiration
Which of these is NOT part of a seed?
- A. Cotyledon
- B. Embryo
- C. Endosperm
- D. Pericarp
- E. Testa
The topmost layer of a typical soil profile is
- A. clay
- B. coarse sand
- C. fine sand
- D. gravel
- E. humus
A dehiscent fruit formed from several fused carpels with man seeds is classified as a/an
- A. achene
- B. capsule
- C. caryopsis
- D. follicle
- E. legume
Liver destroys old red blood cells to produce digestive substance called
- A. amalyse
- B. bile
- C. insulin
- D. lipase
- E. rennin