A child who has no recent history of illness suddenly appears cyanotic and cannot speak after playing with a small toy. you should:

Where does gas exchange occur in the respiratory system? a. bronchi b. alveoli c. trachea d. epiglottis

Which astronomical advancement was attributed to the Mayans A. They calculated the exact solar year as 365.25 days. B. They observed the moons of Jupiter. C. They were aware that Earth orbits the Sun. D.

Which of the following describes the correct relationship between heart sounds and blood pressure? Systolic blood pressure is associated with the first heart sound. Systolic blood pressure is associated with the second heart sound.

ions are necessary to activate the binding sites on the actin filaments.

A species becoming dependent on another species is. A. co-adaptation B. rapid evolution c. sympatric speciation D. instantaneous speciation C

What are at least 5 important words associated with the water cycle? What do they mean? Why are they important?

Which of the following organisms is NOT a protist? a. water molds c. Amoebas (protozoans) b. Escherichia coli d. Diatoms (algae)

A 56 year-old pro golfer is having mohs micrographic surgery for skin cancer on his forehead. the surgeon performs the surgery with two stages. the first stage includes 4 tissue blocks and the second stage includes 6 tissue blocks.

13. Excess salt is removed from the body through sweat glands in the skin, This is an interaction between systems.

a cell with 5% salt concentration is placed in a beaker with 1% salt concentration. what will happen to the cell over time