Answer:
1st option: when a sperm joins an egg
Step-by-step explanation:
A sperm will be accepted into the egg, and fertalize it
Answer: rotational symetry, reflection, and point
Step-by-step explanation:
Answer:
a = 0.
Step-by-step explanation:
2(a - 4) = 2a - 8 + 4a
2a - 8 = 2a - 8 + 4a
2a - 2a - 4a = -8 + 8
-4a = 0
a = 0.