What is stage will our sun enter in about 4 billion yearsa. red giantb. main sequencec. white dwarfd. black dwarf

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

If you place a magnet under a clear dish, and sprinkle iron fillings over it, above what part of the magnet will most of the fillings gather

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.