Answer:
A cell uses active transport because active transport uses energy going from high to low (against the concentraion gradient) while diffusion (passive transport which doesn't use energy) goes from low to high.
Explanation:
Answer:
to get a Repeating answer so you know the first time wasn't a fluke
Explanation:
The ability of an organism to survive and reproduce in its environment is called adaptation. Fitness is a result of adaptation.
This is an example of mutualism. In mutualism, two organisms have a relationship which benefits both organisms. In this example, the butterflies benefit from food, and the flowers benefit by having their pollen spread.
Answer: skeletal system
Explanation: osteoarthritis affects the cartilages of Bones.cartilages is a flexible connective tissue ,in a joint that covers the surface of the bones in the joint.it also cushions the bones from impact.
During osteoarthritis,the cartilages wears out and causes the bones in the joint to rub against each other causing swollen joints, painful joints and stiffness of joints
It occurs in joints of the knees,hips,fingers and toes.
