Which two conditions are caused by blockage of a blood vessel? A. hypertension and obesity
B. hypertension and high cholesterol
C. arrhythmia and stroke
D. heart attack and stroke

Imagine a rocket launching from earth and travelling to the moon. in which order would the rocket pass through the layers of the atmosphere? thermosphere, mesosphere, stratosphere, troposphere troposphere, mesosphere, stratosphere, troposphere thermosphere, stratosphere, mesosphere, troposphere troposphere, stratosphere, mesosphere, thermosphere

What is the name of the type of cell division that occurs in the prokaryotic cell cycle

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?