Answer:
1st option: when a sperm joins an egg
Step-by-step explanation:
A sperm will be accepted into the egg, and fertalize it
Step-by-step explanation:
Area = length × width
= 14 × 10
= 140cm^2
They are adjacent because he share a vertex and a common side, and x=15° because 90°/(2+4)= 15
Answer:
A. 19
Step-by-step explanation:
10 + 9 = 19