The system that is responsible for breaking down food and releasing essential nutrients and other substances that the body needs and requires is the digestive system.
Darwin's "Origin of Species" and Lamark's "Theory of Inherited Characteristics"
Mitosis is responsible for the growth of a eukayotic cell. during mitosis a cell divides and to 2, unlike meiosis which divides in to 4. mitosis is the asexual reproduction of cells, such as hair ,skin and nail cells.
Isotopes
Atoms of the same element; number of protons remain the same, number of neutrons vary. Chemical properties remain the same. Atomic mass varies.
Na sodium with 11 neutrons = atomic mass of 22
With 22 neutrons the mass is 23.
Both have 11 protons in the nucleus.
Answer:
Natural selection
Explanation:
According to Darwin's theory, natural selection is the process by which individuals better adapted to their environments have more chances to survive and reproduce, and thereby their descendants will be better represented in the next generation. This mechanism exploits the existence of natural variation among members in the population which is used to select those individuals that are better adapted (i.e., with a higher adaptive fitness) for their environments. Natural selection is a key mechanism of evolution by which species change across time.
