What is an organism that relies on other organisms for its food and energy supply; also called a heterotroph?

The activity of the modern sample is 1.10 bq . how long does that measurement take?

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.

What is the role of dna ligase in the elongation of the lagging strand during dna replication?