I believe the correct answer is C. Worm because worms cannot make their own food.
Answer:
The flow of individuals in and out of a population introduces new alleles and increases genetic variation within that population.
Explanation:
The right option is; B. Global Warming
An unnatural temperature increase in the atmosphere near Earth's surface is called global warming.
Global warming is the observed prolonged rise in the average temperature of the earth's climate system. Global warming is an environmental problem that is observed by temperature measurements and by various influences of the warming. Global warming is caused by natural influences such as greenhouse gases, volcanic eruption, and human influences such as industrial revolution and deforestation.
<span>grouping students based on their average marks in the previous year's final exam</span>