A function of white blood cells is to

A. carry carbon dioxide

B. fight disease

C. form blood clots

D. carry oxygen

A lizard and bat have similar forlimbs which better adapt to theor different environment, but they are used in different ways this is evidence that supports the theory of evolution by means of A. Analogy B. Acquired characteristics C.

A scientist wonders what would happen if a nonnative predator were introduced into a stable ecosystem. which of the following is the most ethical reason for running a simulation rather than introducing an actual predator into a real ecosystem?

The bonds that link many water molecules together to form a water drop are: ionic nuclear hydrogen covalent

From which of the following structures does a flatworm expel solid waste? cloaca vesicle pores in skin mouth

The nurse determines that a 61-year-old patient with chronic bronchitis has a nursing diagnosis of "impaired gas exchange," after noting an oxygen saturation of 88%. what is an appropriate intervention to add to the care plan?

When an enzyme catalyzes a reaction: a. substrate (s bind in the active site b. products bind in the active site c. the shape of the enzyme remains unchanged d. the enzyme is consumed by thereaction?

How do the islands of Hawaii compared to the volcanoes on land

How does the respiratory system interact with the circulatory system? A. The circulatory system removes oxygen from the body to make room for carbon dioxide in the respiratory system. B.

Which layer will become saturated first when rain falls?

Which sphere does a volcanologist most directly study