<span>A fossil leaf that is made only of carbon preserved between two rock layers is called carbon film fossil.
</span>Characteristic of the carbon film fossils is that they are primarily composed of carbon. The fossil leaf has usually lost <span>internal components (cell walls and internal cell structures ).</span>
I’m not exactly sure, but I’m thinking it may be A . I just learned about this unit previously .
Answer:
Cellular respiration uses energy in glucose to make ATP. Aerobic (“oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. In glycolysis, glucose is split into two molecules of pyruvate. ... Life first evolved in the absence of oxygen, and glycolysis does not require oxygen.
Explanation:
Got it from Goog|e >.<
Answer:
A buildup of sticky mucus on the outside of the cell
Explanation:
The deletion of the codon means that the protein the gene codes for is missing one amino acid.
That protein acts as a Cl⁻ channel in the cellular membrane and controls the movement of water in the tissues.
The water produces thin, freely flowing mucus. Without the water, a coating of thick mucus builds up on the outside of the cell.
This process is called natural selection.
With that said, it means that the organisms with the less favorable traits to the environment had a less chance of surviving and they are less likely to pass their characteristics to the next generation as they have a lower chance of reproducing.
For example, there are black moths and white moths. The black moths can camouflage themselves in the dark environment, meanwhile the white ones can be easily spot by predators. Therefore, the number of white moths decreases because predators caught them. The leads to more black moths around and less white ones.