Answer:
A.
Explanation:
because solid metals will sink when placed on top of whole milk.
Answer:
Medulla oblongata
Explanation:
Medulla oblongata is the part of hindbrain and have three vital centers located in it. The vital centers present in medulla are:
1. Cardiac center
2. respiratory center
3. and vasomotor center.
The cardiac center is also known as cardio inhibitory center and is involved in regulation of heart beat. The basic rhythm of breathing is under regulation of respiratory center while diameter of blood vessels is regulated by vasomotor center.
Darwin discovered that the same species of organisms had different traits from one island to the next. According to Darwin, this happened because the organism had. A) adapted to better survive in their habitat.
