3.
a researcher finds that blood alcohol levels cause progressive damage to the liver. all the mice in his study were fed the same amount and types of food. different concentrations of alcohol were injected into each mouse. one group of mice does not receive any alcohol at all. the different concentration of alcohol injected into different mice represents the
dependent variable
constant
independent variable
control

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

Which of the following is not a potential result of deforestation?

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.