What is a independent variable

Which of the following undergoes change during a chemical reaction? a. atomic mass of elements in reactants b. element identities of atoms in reactants c. total number of electrons in reactants d. chemical bonds between atoms in reactants

How many calories of energy will 20 grams of carbohydrates provide if 1 gram provides 4 calories? A. 80 calories B. 100 calories C. 200 calories D. 240 calories

Mice with the Rosa63 protein have a defective organelle. What organelle is abnormal?

One way that humans depend on animals

Can blood group A donates blood to blood group O? why?

Which of these is a likely source of excess nitrates in an aquatic environment? Fertilizers Defective septic tanks Defective sewage treatment facilities all of them

A series of folded membranes that move materials around

Which of the following is NOT a step used by cytotoxic T cells to kill infected host cells? -Secretion of granzyme -Recognition of infected host cell using its TCR -Recognition of infected host cell using its CD4 glycoprotein -Secretion of perforin

Explain how having nerve cells clustered around the edge of its bell is advantageous to a medusa

Through the process of photosynthesis, light energy from the Sun was transformed into chemical energy in the form of sugar within a strawberry plant.