Which part of a green plant shows the greatest decrease in chloroplasts in the fall of the year? A. Seed B. Root C. Stem D. Leaf

A researcher wants to test how diets A and B affect the weight loss of rabbits. She has 20 rabbits to use, but all of the rabbits are different sizes, which might affect how much weight they lose.

An organism has these traits: unicellular can't photosynthesize contains DNA in nucleus Which group does this organism belong to? A. archaea B. eukarya C. protista D. animalia

The size and shape of earths surface features both on and off a map is referred to as the

Scientists are able to create specially designed bacteria that decompose toxic waste. a. True b. False

Explain why high blood pressure is a health concern?

Aquatic plants do not contain a) chloroplasts b) cells c) lignin d) nuclei e) chlorophyll

Jennifer's baby brother had infantile Tay-Sachs disease (TSD), but Jennifer did not have the disease. When Jennifer grew up and got married, her third child also had infantile TSD. How is this possible? A.

Which molecule do mammals use to store extra glucose? a. glycogen b. cellulose c. starch d. myosin

Which of these processes describes the effect Earth's atmosphere has on Earth's hydrosphere? A: River overflowing and flooding farmland B: Glaciers melting and increasing the ocean water levels C: Warm, moist air increasing ocean temperatures D:

Which two organelles are found in plant cells but not animal cells