<span>The answer is Charles Lyell. The theory of uniformitarianism stipulates that there is no upsurge or downsurge/lull in the geological processes that determine the geographical features on earth. It states that these processes act with the same intensity through-out time.</span>
Answer:
The correct answer would be mitosis and binary fission.
The human embryo grows through the process of mitotic divisions through a parent cell divides into two equal sized daughter cells each of which contains identical genetic material.
Similarly, single-celled organisms reproduce asexually through the process of binary fission during a parent cell divides into two equal sized daughter cells each of which contains identical genetic material. Each daughter cell grows and matures to become an independent adult.
<span>Answer: Cellular differentiation is responsible for one daughter cell becoming a sieve tube whereas the other becomes a companion cell. Cell differentiation occurs as different genes are switched on and off.
Hope this answer helps!</span>
includes the brain and spinal cord
