A55-year old man is referred to your clinic. he has been sedentary all of his life, is gaining weight and wishes to get into better physical shape. he has never had any chest pain or shortness of breath when walking or climbing a flight of stairs. before recommending a vigorous exercise routine for this patient, you order what test?

In the given case, the client is recommended for ETT, that is, an Exercise Treadmill Test.  

Various patients have underlying CAD, that is, coronary artery disease, however, it remains asymptomatic. Thus, prior to starting any new kind of intense activities after years of a sedentary lifestyle, it is suggested that the person should go for ETT to rule out any kind of underlying CAD.  

An ETT records the heart's electrical activity on an ECG and takes the readings of blood pressure while one walks on a treadmill. It is usually done to check for any kind of heart disease, or to find of the treatment for heart ailment is efficient.

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.