Fossils of a species of bear are found in layer 5. Which layer is most likely to have organisms that lived at the same time as the bear species? O A. Layer 1 B. Layer 2 C. Layer 4 D. Layer 8​

The correct answer is C. Layer 4.

Explanation

The image shows 13 layers of rocks on the earth's surface that, according to their age, are located from the oldest below to the most recents up. According to the above, if a fossil of a species of bear is in layer number 5, organisms that lived at the same time could be found in number 4 because it is the closest layer to the layer in which the bear species is mostly found and therefore, the layer that was formed at the same time or right before layer 5. According to the above, the correct answer is C.

explanation:

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.