Longest time a person has been stranded on an island

Two students are planning an experiment that will test how planaria (aquatic flatworms) respond to different environments.

Compare and contrast saturated and unsaturated fats

Which best describes the role of a negative feedback loop?

Which tenet of cell theory is described by the following paragraph about the historical observations of cells?

Scientist given credit for first using the term cell describe the basic unit of life

In what way are plants in a sunny meadow and sulfur bacteria in a deep sea vent alike A) They both use photosynthesis to make their own food B) They both produce carbohydrates C) They both use chemosynthesis to produce their own food D) They both

Maryland white oak trees make their own food. Their cells contain structures that capture energy from the sun. What are these structures?

What are two ways in which all living things are similar at the molecular level.

Which of the labeled structures controls the water balance in the paramecium?

Paleontologists can definitively conclude whether dinosaurs were endotherms. a. True b. False