Which addictive substance became the most important item of export from North America?

Select the best answer from the choices provided.

A) Tobacco

B) Coffee

C) Opium

D) Tea

Consider a cell that requires much more ribose5‑phosphate than NADPH. The cell needs ribose 5‑phosphate but has a relatively high concentration of NADPH and a low concentration of NADP+. These conditions may occur in rapidly dividing cells.

How do scientists construct recombinant DNA molecules? by using RNA from plants by combining the proteins from two different organisms by combining the DNA of two different organisms by combining the RNA of two different organisms

Is there a difference between temperate forests and Temperate rainforest?

What Phylum do frogs and humans both belong?

Aphids, small insects that feed on the sap of plants, undergo asexual reproduction during the summer months. they produce eggs that are formed without the separation of chromosomes.

How does consciously thinking about the behavior affect your performance of it?

How does the height of the first hill of a roller coaster affect the remainder of the ride?

Enlargement of body tissue blurred vision low sperm count weight gain feeling sluggish

What two substances are made in the nucleus and move to the cytoplasm?

What are the characteristics of regions that have the highest seismic risk