Which of the following is NOT found in the nucleus?

a.

cytoplasm

c.

chromatin

b.

nucleolus

d.

DNA

What does it mean for a cell membrane to be selectively permeable? (A) It allows some substances to pass through but blocks the passage of others. (B) It allows molecules to pass through if they are under a certain size.

A certain stem cell produces only muscle cells. What kind of stem cell is this? O O A. Multipotent B. Totipotent C. Unipotent O O D. Pluripotent

Which are possible outcomes of a mutation in a gene that codes for a transcription factor? The ability of the transcription factor to bind to DNA may be destroyed. The ability of the transcription factor to bind to DNA may be reduced.

Which of these processes is responsible for generating the most ATP within cellular respiration? a. Krebs cycle b. The electron transport chain c. The breakdown of glucose into pyruvic acid d. Glycolysis

Cuando y como fue descubierto el elemento mercurio?

Which statements apply to density? Check all that apply. >Density is a chemical property of an object. >The density of an object is constant. >Density is a derived unit of measure. >Density is the sum of the mass and volume of an object.

For some invertebrates that live in water, the sense of taste and the sense of smell are identical. Why do you think separate organs for taste and smell might have evolved in animals that live on land but not in some animals that live exclusively in

Plants can only cause mechanical weathering. true or false.

Both Allison and Beth need 2,200 kcal daily to maintain their weight. Allison consumes a high-fat, high-protein, low-carbohydrate diet consisting of 2,200 kcal. Beth consumes a low-fat, moderate-protein, high-carbohydrate diet containing 2,300 kcal.

Which observation proves that a cell is eukaryote