Eratosthenes determined the circumference of Earth by conducting an experiment. Put his steps in order as they correlate to the scientific method.
T
Conduct an Experiment: Measure the angle of a shadow at high noon
in Syene and Alexandria,
Make Observations: In Syene, the sun's rayfare vertical at noon. At
t the same time in Alexandria, the rays are 7.2 degrees from the
vertical
Draw Conclusions: The angle represents the amount Earth curves
11. between Syene and Alexandria. This is 1/50 of a complete circle and
1/50 of Earth's circumference.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse

essentially, one bacterial cell splits into two daugurer cells. bacterial offspring don't need or get care from their parents because they are in a sense their own parents. that said, some bacteria can and do depend on other bacteria especially in harsh environments such as bacterial microfilms in hot water tanks.