Ans.
Human reproduction involves release of sperm (male gamete) and egg (female gamete) and their fusion to form zygote that develops into embryo. In females, an egg is released each month as a part of a monthly cylce, called menstrual cycle. The release of egg is termed as ovulation, in which tiny eggs are send into the fallopian tubes for fertilization.
Hence, the correct answer is 'a). an adult female usually releases an egg from an ovary each month.'
Ok this might not be the best answer but just by reading it, it may be unreliable because numbers do change over time
Answer:
D
Explanation:
The pronunciation for the long o sound is "oo" and only's o is pronunciated like that.
Answer:
the arrow is Q and the change of state is known as melting
Answer:
Seismic waves traveled at varying speeds.
Explanation:
The Moho Discontinuity was discovered by one Croatian seismologist, Andrija Mohorovicic. He realized that the speed of a seismic wave depends on the density of the material the wave is moving through. Mohorovicic interpreted the acceleration of seismic waves observed within the Earth's crust as a change in composition of matter within the Earth.
