The ideology that living things arise from nothing is known as:

Which of the following protists acquired plastids through primary endosymbiosis?

a. stramenopiles b. red algae c. dinoflagellates d. ciliates e. euglenoids

Packages of vegetable seeds typically include an ideal planting depth. If planted too deep, the seeds will not germinate. Why will an excess depth affect the germination of the plant?

A. Circadian rhythms are disrupted. B. Thigmotropism is disrupted. C. Statoliths can no longer move. D. Phytochromes can no longer absorb light. E. The apical meristem cannot reach the surface of the soil.

Ribbon worms have a unique ____ that is used to capture prey

a. proboscis b. tentacle c. set of jaws d. forked limb e. stinging cell

Which of the following is an example of stimulus/response? 

A. Conditioning dogs to salivate when a bell rings B. Imprinting ducks to follow a surrogate "mother" C. Learning not to pick up burning charcoal with your fingers because it is hot D. All of these are examples of responding to a stimulus