Is the right ventricle of the heart oxygenated or deoxygenated

The transport tubes for food coming down the plants are called?

Which scientific design has both practical limitations and limitations due to scale? studying the effect of bleach on the growth of mold spores exposing cultures of duckweed to different intensities of light observing the replication of dna molecules with a hand lens using colored marbles to model a cross between two colors of rabbits

The pronunciation aid that determines the stress placed upon a syllable is the