Answer:
Speciation has become complete when organisms of one population do not recognize the mating call of another population and so mating does not occur. Which of the following statements about reproductive barriers and speciation is true? Speciation can occur with even a single gene mutation if that mutation involves reproductive barriers.
Explanation:
Explanation:
1. Most autotrophs use a process called photosynthesis to make their food.
2. Carbon Dioxide and water are the raw material for photosynthesis.
3. This is a trick question because nitrogen is part of oxygen, so the answer is definitely oxygen.
Hope this helps! :)
B. I think thats right :/
Answer:
Was there meant to be a picture?