What is the third trophic level in a food chain

Francis Crick hypothesized that the Genetic Code must require 3 nucleotides in the mRNA to specify each amino acid based on a simple calculation. What was the logic behind this calculation?

Differentiate between roughage and concentrate

Effeciency of diffusion is improved by having

A car travels 10 meters north, then 25 meters south, then 30 meters north. The trip takes 15 seconds. A - what is its average speed? B-what is its average velocity?

Which description best contrasts gross and microscopic anatomy? A.) Gross anatomy refers to parts of an animal that are internal, whereas microscopic anatomy refers to parts outside the body. B.

During which storage stage of the cell cycle is the dna copied

Why do planets travel in elliptical orbits?

The __nervous system carries impulses from the central nervous system to the heart and other organs. autonomic somatic cerebral muscular

Can be used by cells to store energy, form biological membranes, and serve as chemical messengers

How is the formation of natural gas related to the formation of coal and petroleum?