If a piece of pure iron is placed in pure nitrogen, nothing happens. If the iron is exposed to air, it begins to rust. What conclusion can you make about air, based on this observation?

A student is performing a gram stain of a mixed culture of both e. coli and s. aureus and he forgets to decolorize with ethanol. what should his slide look like?

Six centromeres are observed in a prophase cell from an insect, how many pairs of chromosomes are present

Main function of mitochondria in animal cell

What is designer babies?

How many atoms of nitrogen (N) are represented by the chemical formula 3NH4

How many codons are contained in the mrna that is produced by the normal dna in model 1

Arrange the events involved in nuclear fusion in the correct order. 1. The colliding nuclei fuse to form larger helium atoms having two protons and two neutrons. 2. Bare nuclei collide with each other due to massive amounts of heat. 3.

In any dihybrid cross where both parents are heterozygous for both traits, what is the phenotypic ratio of the offspring? A) 1:1:1:1 B) 6:3:2:1 C) 9:3:3:1 D) 12:4:3:1

What feature of a disease classifies it as a prion disease?

He carrying capacity of an ecosystem for a particular species at a particular time is determined by