Archery! hit the 10 points area only. The arrow must stay stuck!
10
10
Archery! hit only the 20 points area. The arrow must stay stuck!
15
Archery! hit the center for 25 points. The arrow must stay stuck!
25
25
Scientists think that blue green algae, also known as cyanobacteria, were the first organisms to perform photosynthesis. Describe the effect of blue green algae on Earth’s atmosphere?
The effect was significant, because photosynthesis increased oxygen levels
15
Name a relationship between the digestive system and another system that allows carnivores to eat meat?
The jaw bones of the skeletal system are specialized to chop meat and begin the process of digestion.
15
Marco wants to improve the model by adding blood vessels of the circulatory system. Where should the model show nitrogenous wastes leaving the blood and entering the urinary system?
Kidneys
15
What is the major difference between humoral and cell-mediated immune response?
Humoral involves the production of antibodies and cell-mediated does not.
15
Describe its functions
after encountering a specific antigen, they further differentiate into plasma cells (which produce antibodies) or memory B cells (long-term immunity)
15
Describe its functions
Respond more quickly, highly specific, differentiate into plasma cells to rapidly produce high-affinity antibodies.
15
Describe its functions
Memory T cells "remember" past infections and, upon re-exposure, rapidly differentiate
15
Describe its functions
Macrophage consumes virus and displays antigen on its surface. Helper T cells bind to macrophages and are activated.
15
Describe its functions
Plasma cells release antibodies that capture antigens and mark them for destruction.
15
Describe its functions
Helper T cells activate B cells, activate cytotoxic T cells, and produce memory T cells
15
Describe its functions
Cytotoxic T cells bind to infected body cells and destroy them.