Charles Darwin made the observations which led to the theory of evolution.
Anatomy of a Wave
A wave is described by its wavelength (or the distance between two sequential crests or two sequential troughs), the wave period (or the time it takes a wave to travel the wavelength), and the wave frequency (the number of wave crests that pass by a fixed location in a given amount of time
A. At the end of meiosis I each cell has twice the number of chromosomes as was in the original cell.
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in heritable traits of a population over time. The term "natural selection" was popularised by Charles Darwin who compared it with artificial selection, now more commonly referred to as selective breeding.
Answer:
Bacteria
Explanation:
All bacteria are microscopic (approx. 1 µm - 5 µms in size) and not visible with the n.aked eye. A microscope is needed to view them.
