1

Which of the following might be found in a freshwater

ecosystem?

А

Water-dwelling bacteria

В

Interactions among fish

C

Rocks and shells

D

All of the above

What kind of macromolecule is water A. Carbohydrate B. Lipid C. Protein D. Nucleic Acid

What is the difference between deoxyribose and ribose? Deoxyribose is a D form, whereas ribose does not form either D or L forms. Deoxyribose has one less oxygen atom than does ribose.

How can chemical differentiation be used to explain the distribution of elements on Earth OR within our solar system?

What are the structural units that make up ionic compounds and how are they named?

Myosin is plentiful in muscle cells, but is not found at all in lens cells. Lens cells contain large amounts of crystallins, which are not found in muscle cells. Why do some proteins appear in one type of cell but not in another? A.

How is the energy released in the breakdown of glucose converted to a form usable by the cells?

How do plants transport water and minerals from roots to the leaves?

What is the difference of obsidian and bed rock

The distance from the crest of one wave to the crest of a successful wave is called A. Amplitude B. Frequency C. Wave height D. Wavelength

Sarah and Jane were playing basketball. They collided and fell. Sarah's knee was lightly bruised. Jane's elbow was scratched, causing a little blood to ooze out.