Biology

The hereditary characters in plants and animals are located on the?

A. gene B. nucleus C. chromosome D. cell Correct Answer: Option C - chromosome

5 years ago

The crossing of individuals of the same species with different genetic characters is?

A. cross breeding B. polygenic inheritance C. non-disjunction D. inbreeding Correct Answer: Option A - cross breeding

5 years ago

The rate of transpiration is NOT affected by?

A. the weight of the stomata pores B. humidity C. temperature D. the size of the stomata pores Correct Answer:…

5 years ago

Which of the following organs regulates the levels of water, salts, hydrogen ions, and urea in the mammals?

A. Kidney B. Colon C. Bladder D. Liver Correct Answer: Option A - Kidney

5 years ago

Exo-erythrocytic phase of the life cycle of malaria parasite occurs in the?

A. liver of humans B. reticuloendothelial cells of humans C. Malpighian tubules of mosquito D. brain of humans Correct Answer:…

5 years ago

The relationship between a termite and the protozoan in its intestine is described as?

A. predation B. saproplytism C. symbiosis D. parasitism Correct Answer: Option C - symbiosis

5 years ago

In the nitrogen cycle, the nitrates in the soil are converted to atmospheric nitrogen by?

A. putrefying bacteria B. nitrogen-fixing bacteria C. nitrifying bacteria D. denitrifying bacteria Correct Answer: Option D - denitrifying bacteria

5 years ago

The sequence of the one-way gaseous exchange mechanism in a fish is?

A. gills ⇢ operculum ⇢ mouth B. mouth ⇢ gills ⇢ operculum C. mouth ⇢ operculum ⇢ gills D. operculum…

5 years ago

The adaptive importance of the nuptial flight from termite colonies is to?

A. ensure cross-breeding between members of one colony and another B. disperse the reproductives in order to establish new colonies…

5 years ago

Seed plants are divided into?

A. monocoty ledons and dicotyledons B. tracheophytes and ferns C. angiosperms and gymnosperms D. thallophytes and bryophytes Correct Answer: Option…

5 years ago