Enzymes belong to which group of chemicals?

A. saccharides

B. proteins

C. polysaccharides

D. lipids

Describe the process of a bactirium cell

Tammy and maureen enjoy a glass of wine with dinner. after the meal, each woman has a cigarette with a cup of coffee. how many psychoactive drugs did the women consume?

One hypothesis about the origin of the building blocks for life is that they were A. made inside meteors. B. formed when lightning struck water. C. started by the RNA in the ocean. D. brought to Earth by meteorites.

A plant cell is placed in a freshwater solution. When it swells with water, filling it's vacuole, we say that it has A) crenated B) plasmolyzed C) lysed D) become turgid

Suggest why most plants die very quicky if their roots are cut off.

What must a animal do in order for cellular respiration to begin

3. In one population, 18 individuals have long hair and 182 individuals have short hair. It is known thatmating has been random with respect to hair length for several generations. (a) What are the hair length allele frequencies in this population?

The transform boundary occurs when plates slide against each other true or false

Why would water stop soaking into the ground in the saturated zone?

How many significant figures are in 7.00