Tibetans' physiological adaptations make them less likely to suffer from A) heart attacks.

B) pulmonary hypertension (or high blood pressure).

C) altitude sickness.

D) blood clots.

answer; i believe the correct answer is (sporophyte);

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.

b brown mice / white sand dunes

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.