What living organism adds atmospheric nitrogen to the soil

How does a threshold prevent a neuron from generating too many action potentials

the green-nose fly normally has six chromosomes: two metacentric and four acrocentric. A geneticist examines the chromosomes of an odd-looking green-nose fly and discovers that it has only five chromosomes;

Cyanobacteria are photosynthetic marine organisms. why would these organisms likely be found only in shallow ocean zones?

An animal cell the is surrounded by fresh water will burst because the osmotic pressure causes? A water to move in the cell B water to move out the cell C solutes to move in the cell D solutes to move out the cell

The outermost layer of connective tissue surrounding a skeletal muscle is called the a. epimysium. b. perimysium. c. endomysium. d. sarcomysium.

What senses is associated with the temporal lobe?

What are 2 ways nitrogen becomes usable to plants, humans and animals?

What factor has the greatest effect on species diversity

A scientist inserts a radioactively labeled DNA molecule into a bacterium. The bacterium replicates this DNA molecule and distributes one daughter molecule (double helix) to each of two daughter cells.

Which type of Rights is the most recognizable feature of property rights