Answer:
Deletion is a type of mutation involving the loss of genetic material. It can be small, involving a single missing DNA base pair, or large, involving a piece of a chromosome.
Answer:
Leukocytes are also called white blood cells. These cells have a nucleus, unlike red blood cells that lack a nucleus. Also unlike red blood cells, white blood cells do not contain hemoglobin, which means they're not involved in the transport of oxygen.
Answer: In primary succession, newly uncover or newly found rock is populated by living things for the first time. In secondary succession, an district before it was populated by living things is disturbed, and then re-populated after the disturbance.
Explanation:
The first satellite in space was named "Sputnik I".
<span>On the date of October 4, 1957, the Soviet Union successfully launched Sputnik I into outer space and it became the world's first artificial satellite. The satellite was about the size of a beach ball weighed only 183 pounds.
I've attached a picture to show you what Sputnik I looked like :)</span>