Bats have a poor sense of sight, so they hunt their prey by emitting a high-frequency sound. They wait for an echo to bounce off a moving or stationary object. Based on the echo, they can determine if prey is nearby. Which types of sensory receptors help bats accomplish this task?

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature about 37 degrees celsius (98.6 degrees f)? describe what might happened the temperature decreased by 10 degrees celsius.

The graph shows the amount of global warming happening in different ecosystems. which populations of organisms will likely decline the most as a result of climate change, and why? a. coral reefs because of the loss of the symbiotic algae living within their bodies b. penguin populations because the fish they eat will move into warmer waters c. mountain-dwelling birds because rising sea levels will relocate their food sources d. large cats in the rainforest because of decreased habitat loss for their prey

How does the human body lever work?