C no because many species went extinct without leaving fossils behind
Explanation:
A daisy is an autotroph because it produces its own energy (food)
Answer:
Crossing over is the phenomena of the exchange of the genetic material between the non sister chromatid of the homologous chromosomes. The crossing over results in the formation of recombinant progeny.
Linked traits are close to each other and present on the same chromosome. The linked traits that are very close to each other and will not separate by the process of crossing over. This information is used to locate the disease condition.
Answer: b. photochemical smog
Explanation:
Photochemical smog is the most common type of smog. It is produced when the ultraviolet rays in sunlight reacts with the nitrogen oxides present in the atmosphere.
It can be seen as visible brown haze. It can be seen in morning and in afternoon. It can be seen in cities which are densly populated.
The largest contributor to the formation of photochemical smog are automobile emission, and coal power plants.
