The correct answer is: D. breathing
Lymphatic system is an open system that does not have a central pump (such as heart in the circulatory system), so the flow of the lymph is different than blood flow. Transport and movement of the lymph are slow and sporadic. Lymph flow occurs thanks to:
• peristalsis – contraction and relaxation smooth muscle tissue,
• valves- so that lymph doesn’t flow backwards along the vessels
• contraction of adjacent skeletal muscle .
Protects your heart, save you money, help lose weight, keep you alert, and boosts your brain
The causes may include the species that are native to that place could suffer a lack of food the food chain can become imbalanced and the non-native species could kill of the native species or destroy the natural environment
Cilia creates water currents that moves paramecium towards a food source.
