Which microscope is best used for viewing the external features of a barnacle specimen while keeping the barnacle intact and alive in water?

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled

What amino acid is coded for by this sequence after the mutation

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.