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Mathematical symbol for addition.

Vascular tissue that transports nutrients through the plant.

Inflammation of the lung, usually caused by infection with viruses or bacteria.

A straight line that makes an angle of 90° with another line.

A pound is an imperial unit of estimating the mass of an object.

A premature baby is born before 37 weeks gestation. Premature labor can occur after 20 weeks gestation but before 37 weeks.

A temporary organ that develops during pregnancy. It attaches to the lining of the uterus and delivers oxygen and nutrients to the growing foetus through the umbilical cord.

Plus (used in a sentence)

Any form of moisture which falls to the earth including rain, snow, hail and sleet.

Vascular tissue that transports nutrients through the plant.