Which of the following statements are correct
(select all that is correct)
Each antibody is specific to the antigen
Antibodies act as signals to tell white blood cells
to come and destroy the pathogen
Antibodies are produced by our immune system
and can lock on to the antigens
Antigens are substances that our immune system
detects as foreign (such as the spikes in
coronavirus)

The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community

What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box