Animals get the most of the nitrogen they need a
by consuming plants or other animals.
b
by breathing in atmospheric nitrogen.
c
directly from bacteria in the soil.
d
from the process of denitrification.

Using the periodic table, determine which material is most likely a good conductor

What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.

The production of cells during mitosis into specialized function is recombination or differentiation