there are three main type of rock is sedimentary and metamorphic each of the rock these rocks are formed by physical changes such as melting point eroding contacting or deformed that are part of the rock cycle sedimentary rocks are formed from pieces of other existing blog or organic material
Complete question:
Geologists are conducting a study on many layers of different types of rock in the Grand Canyon. These geologists will likely find ancient fossils that reveal the history of life near the Grand Canyon in
- igneous rock layers
-
layers of sedimentary rock
-
layers of volcanic rock.
-
metamorphic rock layers
Answer:
layers of sedimentary rock
Explanation:
Most rocks in the Grand Canyon are sedimentary rocks, formed while <em>sediments of sand and mud got deposited in thick layers and got compacted through the pass of time until becoming a rock</em>. Sedimentary rocks have been chronologically accumulating for years, reflecting the geological formation known as superposition. According to this sedimentary deposition, we can distinguish the older rocks located in the deepest areas from the younger rocks in more superficial layers.
As the sedimentary layers were deposited chronologically, they reflect the canyon history by keeping in each layer some of the forms of life that used to inhabit this area in the past. Such is the example of the superficial limestone stratum where many marine animal fossils are found, like clams, fish, and corals.
Answer:
A
Explanation:
A meteor is a rock falling from the galaxy and usaully is burning because of the atmosphere.
Temperature is a measurement of the average kinetic energy of the molecules
in an object or system.
The following options are attached to the question given above:
A) A eukaryotic cell that can make its own food
B) A prokaryotic cell that can make its own food
C) An aerobic bacterium
D) An anaerobic bacterium
ANSWER
The correct option is A.
Endosymbiotic theory is a theory that talks about the evolution of eukaryotic cells from prokaryotic organisms. The theory proposes that mitochondria and plastids {chloroplast}, which are found in eukaryotic cells were once prokaryotic cells. Based on this theory, an endosymbiosis of a cell with a cynaobacterium would result in a eukaryotic cell that can manufacture its own food because it contains plastids.
