Answer:
Blood vessels
Explanation:
It is returned to the heart in the veins. The capillaries connect the two types of blood vessel and molecules are exchanged between the blood and the cells across their walls.
Coal isn’t a mineral.Coal is made of decomposed plant material which is organic , minerals are inorganic .
Before
Principle of superposition of strata
Younger
Principle of cross cutting
Explanation:
Relative dating is method of assigning ages to geologic events in nature. This is based on certain principles and laws proposed by earlier geologists.
Relative dating differs from absolute dating in that absolute dating assigns real quantitative numbers to geologic events.
- From the analogy of the building provided, according to the principle of superposition of strata, the oldest layer is at the bottom of the sequence and the youngest on top.
- The lowest part of the section must of the section must have been constructed before the parts above it were constructed.
- Based on the principle of cross cutting "geologic features that cuts another are usually younger than the sequence they cut through ".
- The cracks on the wall is cross-cutting feature that appeared after the wall was formed.
- Therefore, it is younger than the wall.
learn more:
Fossils brainly.com/question/12790206
#learnwithBrainly
