Q.1: The atrial wall of our heart secretes ________________, which reduces blood pressure. a) GIP
Q.1: _______________ is the most important ecologically relevant environment factor. a) Water b) Temperature
Q.1: Vertical distribution of different species occupying different levels is called _______________.
Q.1: ______________ requires large amount of water for its removal. a) Uric acid b) Ammonia
Q.1: ____________ are needed for the clotting or coagulation of blood. a) Globulins b) Albumins