Answer:
Some individual insects are more likely than others to survive and reproduce due to their inherited traits
Explanation:
Organisms are able to develop resistance to harsh environmental factors due to inherited traits which enable them to survive and become better adapted to their environment.
Some pests must have overtime acquired resistance to the concentration of the pesticide used in each year and passed on these traits to their offspring. This resistance accounts for the need for the use of a higher concentration of pesticide each year to overcome the resistance acquired by some pests.
Answer:
Sodium ions are pumped from a region of lower concentration to a region of higher concentration in the nerve cells of humans
Explanation:
Active transport is a kind of transport in which substances or molecules are moved from a region where they are in low concentration to a region where they are in high concentration. Active transport occurs against concentration gradient, hence, energy input in form of ATP is required.
Based on this description, the option that best ilustrates active transport is when: Sodium ions are pumped from a region of lower concentration to a region of higher concentration in the nerve cells of humans. The process will require energy to occur since sodium ions are pumped against concentration gradient.