Which of the following is a feature of the population pyramid of a developing country?
long lifespan
low birth rate
low death rate
short lifespan
The interaction of a community of organisms with its abiotic environment constitutes
niche
a food chain
an ecosystem
a microhabitat
The vector of the malaria parasite is
female Aedes mosquito
female Anopheles mosquito
male Culex mosquito
female Culex mosquito
Which of the following instruments is used to measure relative humidity?
Hydrometer
Thermometer
Hygrometer
Anemometer
Exo-erythrocytic phase of the life cycle of malaria parasite occurs in the
liver of humans
reticuloendothelial cells of humans
Malpighian tubules of mosquito
brain of humans
