Erosion should be the main cause in losing fossils
Cystic Fibrosis is a genetic disorder passed through a recessive gene. Often this condition is first diagnosed when the patient is a child by using a sweat test. Cystic Fibrosis affects cells that produce mucus, sweat, and digestive juices, causing these fluids to become thick and sticky. This causes a cough, repeated lung infections, the inability to gain weight (developmental issues), and fatty stools. Patients can take a mucus thinner medication which helps temporarily thin the mucus in their airways, allowing them to cough it out of their lungs more easily. Another treatment is using vest therapy. The vibration of the vest against the chest wall helps loosen mucus, creating airflow that will move the mucus away from the airway walls. The patient must then cough periodically during and after the treatment to clear the fluid.
Well maybe that species evolved over time to get faster and be more durable because of the need to run away from lions and other prey.
The correct answer would most likely be D. In the absence of oxygen, cells release ATP by breaking down glucose into lactate. Which relates to lactase fermentation
C (for use mostly by females)