Answer:
The new research suggests that Earth's water came from both rocky material, such as asteroids, and from the vast cloud of dust and gas remaining after the sun's formation, called the solar nebula.
Explanation:
Primary succession occurs in an area that has not been previously inhabited by a community. Places where primary succession occurs include newly exposed rock areas, sand dunes, and lava flows.
Answer: Spleen
Explanation: The spleen is an organ in the abdomen, under the ribs on the left side of the body. It stores lymphocytes, filters the blood and destroys old blood cells. As blood passes through the spleen, lymphocytes attack any bacteria or virus or other types of harmful substances that can cause infection or illness.
Answer:
Explanation:
Three Ways that Genetic Diversity Occurs During Meiosis ...
Three Ways that Genetic Diversity Occurs During Meiosis. Meiosis is the process by which most eukaryotic organisms, those with cells having an organized nucleus, produces sex cells, the male and female gametes. Cells normally have two copies of each chromosome, one donated from each parent. This is the diploid ...
