Biology

The presence of ______ for swimming in a tad-pole enables it to adapt in an aquatic habitat.

A. Gills B. Swim bladder C. Tail D. Fins Correct Answer: Option C C. Tail Explanation Tadpole's ability to swim…

6 years ago

Plants which can survive in extremely dry places are called?

A. Mesophytes B. Xerophytes C. Hydrophytes D. Angiosperms Correct Answer: Option B B. Xerophytes Explanation They are called Xerophyte because…

6 years ago

Only specially adapted micro-organisms are found in?

A. Salty water B. Humid air C. Moist soil D. Mouth cavities Correct Answer: Option D D. Mouth cavities Explanation…

6 years ago

Which of the following is the effect of using artificial pollination in plant breeding?

A. Production of healthy crops B. Lengthening the maturity time of crops C. Making crops susceptible to disease D. Improvement…

6 years ago

Which of the following is a nitrifying bacterium?

A. Rhizobium B. Nictrobacter C. Azolobacter D. Nitrosomonas Correct Answer: Option B B. Nictrobacter Explanation Nitrobacters are chemoautotrophic organisms found…

6 years ago

The study of an individual organism or a single species of organism and its environment is?

A. Autecology B. Ecological concepts C. Synecology D. Biotic composers Correct Answer: Option A A. Autecology Explanation Autecology is the…

6 years ago

Which of the following pairs of scientists discovered the Rhesus factor in human blood?

A. Hooke and Lavine B. Darwin and Landsteiner C. Landsteiner and Lavine D. Hooke and Darwin Correct Answer: Option C…

6 years ago

Which of the following substances has the highest amount of energy in joules per unit weight?

A. Carbohydrates B. Fats C. Proteins D. Vitamins Correct Answer: Option B B. Fats Explanation Fats provide more energy to…

6 years ago

In natural selection, Darwin proposed that evolution occurred because of the following conditions except?

A. that nature selects those that will survive to reproduce their kind B. there is a fierce competition among the…

6 years ago

Competition among individuals of a population increases the?

A. Number of organisms B. Availability of nutrient supplied C. Survival of the fittest D. Enlargement of the territory Correct…

6 years ago