D.
variable-ratio schedule of reinforcement.
Selective selection,since being smaller is an advantage the rabbits got smaller similar to evolution
<span>Employee of the Elder-Dempster shipping company based out of Antwerp. Responsible for basically starting the international human rights movement in the Congo Free State. Created the Congo Reform Association and was a constant thorn in the side of Leopold II. He formed his own newspaper 'The West African Mail' and wrote 'Red Rubber' to publicise the atrocities committed by King Leopold II and his officers in the Congo.</span>
The correct answer is option A - Lithosphere
Explanation:
John Tuzo Wilson was a Canadian geophysicist who is known for his contributions to the theory of plate tectonics.
Plate tectonics supports the idea that the rigid outer layer of the Earth or the lithosphere is broken into numerous plates. These plates move independently over the asthenosphere.
Answer:
Radiation leads to mutations that causes genetic drift and decrease fitness.
Explanation:
Radiation is responsible for changing or altering the DNA sequence within a cell.
Radiation either causes mutation or it leads to cell death.
Most of the ionizing radiation causes mutation within the deep inside of our cells which eventually leads genetic drift which means change in the frequency of the allele in a population over time.
Beneficial mutation confer advantage to the organism. But in this case, the mutation is not beneficial and decreases the fitness of the rodent organisms.