Almost the entire system of an embryo is made of cartilage, whereas that of an adult is mostly made of bones.
Answer:
The blood circulatory system delivers nutrients and oxygen.
Explanation:
Answer:
As the volume of available water increases, the rate of decomposition also increases. Many decomposers secrete enzymes onto decaying matter and then absorb any dissolved molecules and sunlight allows things to grow out of decomposers allowing faster decomposition from the plant absorbing the other nutrients from the things in the decomposer making the soil rich and fertile.
A) One species always outcompetes the other until only one species remains.
