Which structure is found in all eukaryotic cells? a. large central vacuole b. golgi apparatus c. flagella d. cilia

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Why do we perceive objects as retaining their brightness under different lighting levels?

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi