& Sodium carbonate +silica - sodium silicate +
Carbon dioxide balanced equations

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units: