In humans, schizont stage of Plasmodium is found inside:
liver cells only
liver, spleen and blood cells
RBCs and liver cells
RBCs only
In honey bee, royal jelly is secreted from :
corp gland
wax gland
pharyngeal gland
salivary gland
Which of the following is correct pair of disease and its causing agent ?
Soft - sour - Bacillus breveis
Gonorrhoea - Entamoeba
Syphilis - Troponema pallidum
Urethritis - Bacillus anthracis
Lac is obtained from :
Laccifer
Bombyx
Dactylopius
Lytta
A.
Laccifer
Lac is obtained fom Laccifer or Kerria lacca or lac insect that belongs to Phylum- Arthropoda.
As insecticides reach at higher trophic level in food chain their concentration :
increases
become irregular
remain constant
decreases
Which of the following cells are associated with immune system of body?
Neutrophils
Macrophages
Lymphocytes
All of these
To obtain amino-acids and other organic compounds, Stanley Miller and Urey used in his experiment :
mixture of O2, N2, CH4 and H2O
mixture of NH3, H2, N2 and H2O
mixture of H2, NH3, CH4, and H2O
mixture of H2, O2, CO2 and H2O