<span>The correct answer is b. Option a is incorrect because these models can demonstrate scientific theories, but they don't prove scientific theories (you would need experiments for that). Option c is incorrect because the models aren't always representing something abstract (i.e. DNA is very real, just very small). Option d is incorrect because they don't precisely mimic something in nature, but instead help us visualize something in nature that is difficult to see or comprehend.</span>
<h2>Droughts kills many trees</h2>
Explanation:
- The example of Droughts kills many trees do not involve the flow of information providing feedback.
- Drought is a condition when there is a prolonged shortage of water.
- The duration of drought can be for a month, year or more than a year.
- The drought is caused due to the human activities such as Deforestation.
- Due to less rainfall in a region also causes the Drought in an area.
Answer:
Ionic compounds are formed by the transfer of elecrons from highly electropositive element to highly electonegative element.
Covalent compounds are formed by the shairing of electrons between elements.
Explanation:
Answer:
se realizan en las membranas internas
Explanation:
La fase luminosa o clara se realiza en la cadena transportadora del cloroplasto en pequeñas unidades llamados fotosístemas que están en los tilacoides(membranas internas)
