Which feature do highland climates have that lower elevation areas do not?
o
a tundra where there are no trees
a treeline beyond which trees do not grow
permafrost, or a part of the ground that is permanently frozen
an ice cap, or a permanent cover of ice and snow

The answer is a treeline beyond which trees do not grow.

Explanation:

Trees are unable to grow beyond that treeline because of the harsh climate conditions. At high altitudes, the temperature decreases and is too low for the vegetation to develop. The top of the mountain is exposed which means it gets very fast winds. Water is scarce at higher altitudes. When it rains the water runs down the side of the mountain quickly or enters the groundwater storage. Without water, vegetation will be unable to grow.

economic impact of malaria is estimated to cost africa $12 billion every year. this figure factors in costs of health care, absenteeism, days lost in education, decreased productivity due to brain damage from cerebral malaria, and loss of investment and tourism.

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.