What are the two causes of variation in organisms?

Type S Streptococcus pneumoniae bacterium is lethal and will kill its host. If heated, the inactivated S strain dies and becomes nonlethal. Type R Streptococcus pneumoniae is a nonvirulent strain of bacteria.

During which stage of postmortem decomposition does the body become bloated with gas a) initial decay b) dry decay c) putrefaction d) black putrefaction

4. Which of the DNA typing techniques do you think you would choose if you had to analyze a DNA sample? Why?

Describe facilitated diffusion of glucose through carrier proteins

By what mechanism does refrigeration at 4°c slow food spoilage by contaminating microbes?

When you look out the window, you can see constantly moving air. air is cycled in order to reach equilibrium. B) since these change the density of air and we know the air flows from the region of high density to the region of low density.

What effects do deforestation have on the animals?

Which best defines a diploid cell during meiosis? a cell that has double the number of chromosomes as the parent cell a cell that has half the number of chromosomes as the parent cell a cell that has double the number of chromosomes as the daughter

What is the best definitionof magnetosphere? a. a magnetosphere is a magnetic field around earth. b. a magnetosphere is the groups of atoms that are lined up inside a magnet. c.

True or false: tertiary sources can draw from, or summarize, a secondary source.