When high winds knocked down pine trees in a wooded region, it created a gap in the crowded canopy and allowed sunlight to all on the ground.
the increased sunlight allowed a dense growth of raspberry plants which protected young pine seedlings from being eaten by herbivores. over time, the
pine seedlings grew and blocked sunlight from falling on the woodland floor, thereby preventing growth of more raspberry plants. which of these terms
best describes the process of change observed in this woodlands community?
a. natural selection
b. ecological succession
c. cooperation
d. adaptation

Answer is option B, i.e. ecological succession.

Explanation:

Ecological succession can be understood as a slow process of change that takes place in the ecology or ecosystem over a given period of time. One species takes over the other species naturally and gradually with changing condition that falls favorable for the former. Here, in the above mentioned case, the Raspberry plants took over the habitat of Pine trees after they were knocked down by the winds. With the passage of time and favorable conditions for the pine seedling, they took over the plantation area again.

[content deleted] - user123802726recklesschicken

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.