This is an abnormally low level of platelets.
a. thrombocytes
b. megakaryocytes
c. thrombocytosis
d. thrombocytopenia

D. thrombocytopenia

Explanation:

Thrombocytopenia is a condition that is characterized by abnormally low levels of thrombocytes (platelets) in the liquid blood. The condition is either acquired or inherited. The thrombocyte count may go below 50,000 per microliter which is extremely low.

The patients with this condition generally show no symptoms. Some individuals may experience external bleeding like nosebleeds, and bleeding gums. Some may experience spontaneous bleeding under the skin.

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: