The organisms which appeared on earth first was bacteria.
<u>Explanation:</u>
- The first-ever living organism on Earth was a bacteria known as cyanobacteria. It is believed by scientists that it first formed around 3 billion years ago.
- When the Earth was first formed, it was inhospitable for a long time until 3.8 billion years ago approximately, the core cooled down and the level of oxygen had risen. This, along with photosynthesis resulted in the formation of Cyanobacteria.
- These organisms were capable of carrying out the process of photosynthesis by which they prepared their food. These were known as common ancestors. All the living organisms thereafter are known to be their descendants.
be slower at absorbing nutrients than the other cell
Explanation:
The cell without the microvilli will be expected to have as slower absorption rate of nutrient than the other cell.
- Microvilli are finger-like projections from the surface of the cell.
- The structure has a large surface area to volume ratio which allows for nutrient to be absorbed easily.
- These structures are very important during the absorption of digested food in cells.
Cells without this structure will not absorb food faster.
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The father's phenotype(physical trait) is wet earwax and the mother's phenotype is wet earwax as well.
Sexual selection example; The brightness of the feathers of a peacock. You may also see similar traits in other birds, where some dance and show off bright feathers to attract a mate, where other build nests. These specific traits do not increase their chance of survival, and are not learned. They increase their fitness because they increase their chances of reproduction and passing on their genes.
Survival of the fittest = Survival of those who survive, and reproduce
