Generally, you can calculate it with this formula: df = (r-1)(c-1) where r is the number of rows and c is the number of columns.
Answer:
It just seems like you're supposed to give four pieces of evidence of natural selection. If you're still confused, you can always ask your teacher.
Explanation:
The scientific law of one organism feeding off other where energy is transferred from one form to another is known as the law of conservation of energy.
<h3>How the sun is the primary source of energy for ecosystems?</h3>
Energy from the highest energy source that is sun is absorbed by plants to convert it into food (i.e a form of energy). plants are the only ones that can convert sunlight into another form of energy directly.
The animals and organisms that feed off of the plants take some part of this energy for their life cycles and then the animals that feed off of these animals again take some part of this energy and carry on with their life cycle, this is how energy from sun (highest source) is transferred to different organisms by Just changing form.
Thus, The scientific law of one organism feeding off other where energy is transferred.
To learn more about primary source of energy click here:
brainly.com/question/20893934
there is less energy on the 5th level, the less the energy, the smaller the food chain
Answer: The student get full credit for attending the field trip. Submitting trip evaluation is optional.
Explanation:
