<span>Both recognised that species developed new features in order to survive in a changing environment.
Lamarck thought characteristics acquired during a species lifetime could be passed onto offspring, while Darwin thought this was a very gradual change over many generations, but both knew that features which enabled a species to cope with changed conditions in the environment increased in presence overtime.</span>
Answer:
1. Nucleus
2. Nuclear DNA
3. Chromosomes. They contain the DNA.
4. This is DNA. DNA contains the instructions needed for an organism to develop, survive and reproduce.
It is true.
<h3>What is isotonic medium?</h3>
- A solution that has the same amount of salt as cells and blood. In hospitalized patients, isotonic solutions are routinely utilized as intravenous fluids.
- When a cell is immersed in an isotonic solution, there is no net movement of water into or out of the cell, and the volume of the cell remains constant.
- Isotonic solutions include 0.9% normal saline and lactated ringers. A hypertonic solution is one that has a greater solute concentration than the solution across the semi-permeable barrier.
- The isotonic solution allows the cells to move water and nutrients in and out of the cells. This is necessary for the blood cells to perform their function of supplying oxygen and other nutrients to other parts of the body.
To learn more about isotonic solutions from the given link
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Answer:
D
Explanation:
D is the only option where the cause of the pollution is not something man-made.
