Upon looking at a sample of lake water, Joey noticed that each organism he saw was unicellular and had a nucleus. Some had chloroplasts, while others did not. In which kingdom would these organisms most likely be classified? Archaebacteria

Protist

Animal

Fungi

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

Some tools have graduations to show multiple measurements. for example, a ruler may have graduations for both millimeters and centimeters. when measuring the length of an earthworm, which graduations would allow for the most accurate measurement? millimeters centimeters decimeters meters

Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?