Answer:
Fossilized stromatolites resemble structures formed by bacterial communities that are found today in some warm, shallow, salty bays.
Explanation:
Stromatolites are laminated organo-sedimented calcareous structures formed by bacterias and other microorganisms, that are agglutinated due to diverse minerals such as calcium carbonate. They grow attached to a substrate and emerge vertically from it. Because of their rocky structure, stromatolites have the potential to persist as a fossil. Most fossilized cells were found in these rocks at the seashore. Fossil registers show that similar structured have been inhabiting earth since about <u>3.500 and 3.800 millions of years</u>, and they have maintained their evolutive line to the actuality. In the present, they can grow in many places in the world, and they can also be found in certain places with extreme conditions.
Stromatolites are the most ancient evidence of life on earth, being the first atmosphere oxygenators.
The answer to the question is b
Answer:
The correct answer is C. does not have hemophilia
Explanation:
In the given pedigree John has an XH chromosome, which means that he has the dominant chromosome. As males have one X, they can either be affected or unaffected. So, in this case John could not be carrier. Also, the Dominant chromosome is fully functional and does not show the characters of the disease, so, John would be free of hemophilia.
Changes in maps of any kind are possible in the future. The probability of a change in a topographic map representation of a mountain in the future increases the further into the future we intend to predict.
Topographic maps are useful to obtain a general overview of the land in a certain area. Among the many things that these maps show the user are:
- Hills
- Ridges
- Valleys
- Lakes
- Rivers
- Creeks
- Trails
- Roads
- Elevation of the ground.
These contents can change based on natural occurrences. In the case of a mountain, natural disasters such as an <em>earthquake</em> or <em>volcanic eruption </em>can drastically change the topography of said mountain. The movement of tectonic plates is also a prime example of how the appearance of a mountain may change in the future.
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