White blood cells travel through the blood and are a part of the cardiovascular system. Which other system also contains white blood cells? the integumentary system
the respiratory system
the immune system
the endocrine system

Look at the picture below . what does this picture represent ?

Which of the following represents the chemical reaction of hydrazine and hydrogen peroxide to produce nitrogen and water? a. nitrogen + hydrogen peroxide → hydrazine + water b. nitrogen + water → hydrazine + hydrogen peroxide c. hydrazine + hydrogen peroxide → nitrogen + water d. water + hydrogen peroxide → nitrogen + hydrazine

Me . based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?