Cephalopods such as squid and octopi can communicate by changing skin colors and sometimes even skin patterns. this type of communication is an example of a

a chemical signal

b. sound signal

c. language

d. visual signal

The food label on a bag of potato chips says that each serving contains 600 mg of sodium. if the reference daily intake (rdi) of sodium is less than 2,400 mg, then how many servings of potato chips must rhonda consume in order to exceed her rdi of

Use taxon in a sentence

How is the size of planet related to the thickness of its atmosphere

What cells photosynthesise the most

Match each type of line or symbol, common to geologic maps, to its description. 1. fault line very light and thin line 2. contact line very dark and thick line 3. axis fold looks like a stubby T 4. strike and dip slightly dark and thick line

What releases energy from food

What type of rock would you form in this environment, showing a dried up lake bed?

At which time of the day would the nurse expect to obtain the lowest body temperature?

When an ocean wave reaches shallow water the energy of the wave ... A. pushes water up B. Returns water to the ocean C. Becomes stronger D. Disappears

By what process do all living organisms grow and repair themselves?