Answer: A
Explanation:
it’s a hands free device that prevents water being wasted
Number one is sex cells are created
Can you please take a picture of the question. Because I don’t understand it in this format
Answer:
The correct answer is None of these choices are correct.
Explanation:
Crossing over doesn't occur only between heterozygous genes, it also doesn't happen only in some chromosomes and it never reduces de variation, otherwise, the crossing over is one of the main causes of variation among species.
