Sunlight. Based on the sunlight you receive you have three zones.
1. Sunlight zone- There is enough sunlight here and photosynthesis can happen. More than 90% of marine animals live in this zone.
2. Twilight zone- A small amount of light is here and no plants grow here. The fish who live here are the ones who have adapted to the little light. Lantern fish is an example.
3. Midnight Zone- 90% of the ocean is in this group. It is entirely dark and the temperature is freezing.
Menstruation does not occur if the D) egg is fertilized.
If you are pregnant, you don't menstruate.
Through heat and pressure
B.) Decreases (As the growth rate of a population increases, the doubling time decreases.)
Answer:
that b one is nucleus dont know about the a one