Answer:
<h3>The genes that caused scales to become feathers in the early ancestors of birds </h3>
Human reproduction<span> takes place as internal fertilisation by sexual intercourse. During this </span>process<span>, the male inserts his penis, which needs to be erect, into the female's vagina, and then either partner initiates rhythmic pelvic thrusts until the male ejaculates semen, which contains sperm, into the vaginal canal.</span>
The ocean surface currents circulate counter clockwise direction in the southern hermisphere duebto the coroilis effect.