Sexual reproduction requires meiosis. Once meiosis is complete then meiosis 2 must commence resulting in 4 cells (you are doing two rounds of meiosis).
Answer:
A single mutation is unlikely to result in cancer. Cancer is usually caused by a series of mutations that accumulate throughout the course of a person's life. As a result, cancer is more common in older adults. They've seen more chances for mutations to accumulate.
Explanation:
Answer:
In North America, around June 21, Earth tilts on its axis toward the sun, which is Summer Solstice and when the Northern Hemisphere has the most daylight of any time of year. Winter solstice the Northern Hemisphere tilts the farthest away from the sun and when we have the least amount of daylight of any time of the year.
Explanation:
As Earth revolves around the Sun, it rotates on its axis. Sometimes Earth tilts toward the Sun which is when Summer occurs. In the Winter Earth tilts away from the Sun.
Explanation:
1.b
2.So I can get to know them better and do not have to be afraid.
3.do not do the bottom one
Must be able to breed and produce fertile offspring