You divide the number of chromosomes in half, just like humans. So the female zygote has 28 chromosomes and the male sperm have 28 chromosomes. This way each set of chromosomes contributes the same amount to each sex cell.
Question 12 answer: Compound Machine.
Question 13 answer: Output
Question 14 answer: Balanced Forces
Question 15 answer: Wedge.
Hope this helps!
Aye sir!
The heart
hope it's fine :P
