The cell cycle is important because without it we wouldn’t get new cells
for growth and repair. Humans would not survive without the cell cycle.
Interphase has the cells carry out the functions that are needed to
survive and the cells that divide prepare for reproduction. Mitosis has
the cell’s nucleus divide. Cytokinesis is when the duplicated contents
of mitosis are made into two daughter cells. Without these three things
we would not be able to survive.
They are considered hypotheses for a few reasons : Evolution of organisms has been occurring for hundreds of thousands of years.Since no one has actually been around that long to observe exactly what happened, phylogenetic trees are based off of 'clues' we have such as the fossil record and mutations in mitochondrial DNA. Therefore the 'proof' we use to make phylogenetic trees is not necessarily solid 'proof' but is instead facts put together through strong correlations.
Answer:plants are living organisms .their basic needs are 1 air 2.water 3. Light 4.source of nutrition, optimal temperature and space to grow and reproduce.
Explanation:
Answer:
During Darwin's journey on the HMS Beagle, most of his observations were made on the Galapagos Island. Some of his observations were:
1) The Plants and animals differed from island to island.
2) The tortoise on one island had saddle-shaped shells while on the other island had dome-shaped shells.
3) He observed the different finches of the Galapagos island.
4) He discovered 13 different types of finches present on the Galapagos island.
5) He observed that each that each type of the finch differed in the beak type.
6) He observed that the beak shape changed for finches because of the different food varieties present for them in each area.
7) He observed that traits can be passed from a parent to an offspring.
8) He observed natural selection.
Answer:
Somatic mutations : option (A) and option (D).
Inherited mutations : option (B) and option (C).
Explanation:
Mutations are permanent changes in the genetic material due to alterations in DNA sequence. Mutations may be somatic or inherited (or germline).
Somatic mutations are those mutations that arise in somatic or normal body cells and cannot transfer from parents to their offspring. As skins cells and lung cells are somatic cells, option (A) and (D) represent somatic mutations.
Inherited mutations are those mutations that arise in sex cells (gamete forming cell) and transfer from parents to their offspring due to transfer as these cells form mutated gametes. As egg cells and sperms cells are sex cells, option (B) and (C) represent inherited mutations.
