Answer:
Silent mutations are mutations in DNA that do not have an observable effect on the organism's phenotype. They are a specific type of neutral mutation. The phrase silent mutation is often used interchangeably with the phrase synonymous mutation; however, synonymous mutations are not always silent, nor vice versa.
Answer:
unavailability of clean water decreases in the birth rate
Explanation:
D replace toxic chemicals
The answer is B. 1870 as it was made in 1869
Answer:
There is about 6000 satellites surrounding our earth. A satellite orbits Earth when its speed is balanced by the pull of Earth's gravity. Without this balance, the satellite would fly in a straight line off into space or fall back to Earth. Satellites orbit Earth at different heights, different speeds and along different paths.
