Random changes in allele frequency in a population are usually called genetic drift. The reason why this is the answer is because it is a very specific word which is used to describe exactly that - random changes in allele frequency.
All the other cases; answers, here aren't correct and don't apply.
Because Evolution, theory in biology postulating that the various types of plants, animals, and other living things on Earth have their origin in other preexisting types and that the distinguishable differences are due to modifications in successive generations
Answer: The nodes of Ranvier
Explanation: The speed of impulse conduction along an axon are increased by this.
Composite Volcano: S<span>teep sided cones formed from layers of ash and lava flows.</span>
Dome Volcano: Roughly circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano
Shield Volcano: A broad domed volcano with gently sloping sides, characteristic of the eruption of fluid, basaltic lava.<span />
Answer:
Ecosystem health indicators are measures which help us to understand where action should be taken to restore ecosystem health and associated benefits.
Explanation:
