Answer:
Middle layer of the meninges that contains the cerebrospinal fluid
Answer:
Groundwater depletion
Explanation:
Aquifer depletion is responsible for the collapse of land called Groundwater depletion
Answer: Directional selection
Explanation:
In the population genetics, directional selection is the mode of selection during which the extreme phenotype are favored more than the other phenotype.
This causes the allele frequency to shift towards the time in the direction of that particular phenotype.
Here, in the question the acid tolerant plant species is favored over the other phenotype.
Hence, the correct answer is option D
The cells of multicellular organisms become specialized for particular tasks and communicate with one another to maintain homeostasis. Specialized cells in multicellular organisms are organized into groups.
Kidney disease affects the immune system by weakening it, definately. Disease really can't help it at all