Video: DNA: Adenine, Guanine, Cytosine, Thymine & Complementary Base Pairing. Learn the language of nucleotides as we look at the nitrogenous bases adenine, guanine, cytosine and thymine.
Answer:
A. Some were already resistant and were the survivors that could reproduce
Explanation:
Both resistant and susceptible insects will be exposed to DDT, but according to the evolution theory, it is expected that those insects that are resistant to the insecticide will be selected by natural selection. In consequence, the resistant individuals will survive to reproduce in the next generation.
Answer:
These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air). Each of these four spheres can be further divided into sub-spheres.
Las coyunturas
//////////////////////
