Biology

The maintenance of a constant internal environment in an organism is known as?

A. homeostasis B. homoiothermy C. diuresis D. dialysis Correct Answer: Option A A. homeostasis

6 years ago

The exchange of gases between the environment and the respiratory organs of vertebrates is referred to as?

A. inhalation B. respiration C. expiration D. breathing Correct Answer: Option D D. breathing

6 years ago

The cells and tissues of the nose, throat, chest diaphragm and lungs from the?

A. circulatory system B. respiratory C. transport system D. digestive system Correct Answer: Option B B. respiratory

6 years ago

Lateral meristem in flowering plants is found in the?

A. cortex B. pericycle C. cambium D. pith Correct Answer: Option C C. cambium

6 years ago

Which of the following substances is not usually present in the urine of a healthy person?

A. Urea B. Mineral salts C. Glucose D. Water Correct Answer: Option C C. Glucose

6 years ago

Flaccidity in plants is associated with?

A. cessation of photosynthesis B. wilting C. turgidity D. discolouration of leaves Correct Answer: Option B B. wilting

6 years ago

The gradual cumulative, adaptive and heritable changes in an organism over a long period of time resulting in new species is called?

A. adaptation B. survival C. organic evolution D. interspecific competition Correct Answer: Option C C. organic evolution

6 years ago

Which of the following is NOT characteristic of social insects?

A. All members are identical B. There is division of labour C. The members dwell in the same habitat D.…

6 years ago

One of the structural adaptations of mammals for movement on land is the development of the?

A. hollow bones B. pentadactyl limb C. fused thoracic bones D. streamlined body Correct Answer: Option B B. pentadactyl limb

6 years ago

Which of the following statements is true about mutation?

A. Phenotype is not involved B. Genotype is not involved C. Artificial induction is not possible D. Genotype is involved…

6 years ago