What is the most common type of skeleton

Describe an ecosystem and identify the different trophic levels.

which action best demonstrates the transformation of mechanical energy to heat energy and light energy? striking a matchstick squeezing a sponge ball rubbing hands vigorously releasing a stretched spring

effery used a stream table as a model to show how water erodes soil. As he sprayed water on the stream table, some of the soil was carried to the end of the table. Jeffery used his stream table to model an interaction between which two spheres? A.

The medical term which means a partial or complete loss of hair, either naturally or from medication is

A person's mental and emotional condition can have no effects on their overall health. a. True b. False

Who Viewed moving objects from pond water under his microscope and named them "animalcules

Which of the following cycles tracks the movement of water in the hydrosphere?

Spiders lobsters and insects are all classified as

When a species no longer exist it is said to be

Approximately 5% of Earth's freshwater is groundwater beneath the surface true or false