Directions: Calculate how much energy would be received at the each level of your previous food chain, if the primary producers on gained 273
kcal/m2/yr?

Which of the following is a common danger of commercial fishing?

When elements that form a mineral dissolve in hot water, they form a mixture called a(n) a)geode b)vein c)evaporation d)crystallization e)magma f)lava g)solution h)gem

To take a whiff of your favorite food, you use both? a. motor nerves and your digestive system b. sensory nerves and your immune system c. motor nerves and your skeletal system d. sensory nerves and your respiratory system