It depends whether that mutant gene is dominant or not
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:
When the concentration of molecules of a substance is the same on both sides of a membrane the solution is isotonic.
Explanation:
A given substance, when it has the same concentration on both sides of the membrane, is in equilibrium and the solution is called isotonic, from the extracellular space with respect to the cytoplasm.
The cell membrane is semipermeable to the passage of water and some substances. Hypertonic and hypotonic solutions tend to establish the dynamics of entry and exit of molecules or water, due to the concentration or osmotic gradients that are established, respectively.
An<u> </u><u>isotonic solution </u><u>does not generate gradients</u>, because the concentration of molecules is equal in the extracellular space with respect to the intracellular space.
Answer: It is mostly likely B
Explanation: The phylum Arthropoda consists of invertebrate animals with exoskeletons, a segmented bodies, and paired jointed appendages. It is also more advanced than the organisms belonging to A,C, and D. However, I do not think it's E because that mostly includes sea dwelling creatures and this includes evidence of its habitat.
