Answer:
<em>The correct option is B) the birthrate increased</em>
Explanation:
The picture simply shows that after a period of 10 years, the population of the prairie dogs increased.
Carrying capacity can be described as the maximum number of individuals of a species that a particular habitat can hold. As the diagram shows, there are no factors showing that the carrying capacity of the particular habitat has increased. Hence, other statements like statement D is false.
B. Antibiotics attack only bacteria.
Answer:
A
Explanation:
Excretion is a process in which metabolic waste is eliminated from an organism, this is primarily carried out by the lungs, kidneys, and skin.
Answer: A) Layers 1 and 2.
Explanation:
Secondary succession refers to when species of plants and animals come back to recolonise an area that was destroyed by a natural disaster of some sort or human activity that change the makeup of the area but somehow left it still capable of supporting life.
As the species that come during secondary succession come after the land has been destroyed so to speak, they would be the later species to arrive which would mean that when they died they would be the closest to the surface when their body decays.
Secondary succession would therefore most likely be observed between layers 1 and 2.