In humans, which of these is a vestigial structure?

stomach

coccyx

lungs

hand

The alveoli are tiny air sacs in the lung. They have a relatively large surface area and thin walls. This structure allows -

What is the process of reproduction in prokaryotes cells

What factors contribute to parental care and mating choice? select all that apply?

What types of injuries occur suddenly during activity (sprained ankle, strained back, or fractured hand) ?

Suppose a scientist discovers a new prokaryotic species. Which is the most reliable way to classify the species as a member of archaea or bacteria?

A survey on the Pacific coastline of California shows that kelp is currently being harvested faster than it can grow back. How would this resource be classified? A) Renewable B.) Nonrenewable C.) Potentially renewable D.) Primarily nonrenewable

A psychrometer is used to determine which weather variables?

Why do we can't sneeze without closing our eyes.

What begins when a neuron is stimulated by another neuron or by a stimulus in the environment?

8. Referring to Figure 2-1, the coyotes would be considered a. herbivores c. second-order consumers b. third-order consumers d. decomposers