Which organism is an anual?

●sequoia tree
●pea plant
●moss
●fern​

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s

Cells destroy body cells infected by a virus or bacteria.

Why does bubbling occur when vinegar mixed with baking soda