Answer:
8
Explanation:
Answer & Explanation:
Here's the order of the planets, starting nearest the sun and working outward through the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune — and Planet Nine.
From what I remember in my 9th grade biology class, it's usually half that amount.
B
Amniotes develope a fluid filled sac within a shell or uterus
Osteoporosis is the answer
