In an experiment, the researcher is trying to examine the effects of artificial sweeteners on the germination of radish seeds.  She gives the plants in Group A sugar.  Plants in Group B receive NutraSweet.  Plants in Group C get Sweet & Low.  She finds that those in Group A have the longest roots after two weeks.  There is also a group D.  It is the control.  What type of sweetener should it get?

If the F1 plants in the classic monohybrid cross (purple/white flowers) were crossed with each other, what would be the phenotypic ratio of the F2 generation plants?

When converting from smaller to larger units:

Animals that have the four basic characteristics of chordates plus a vertebral column are

Second-generation offspring from a cross are the

During the S period of interphase

To describe the characteristics of an object in great detail (without measurements), one would use ____ observations.

In an experiment, the researcher is trying to examine the effects of artificial sweeteners on the germination of radish seeds.  She gives the plants in Group A sugar.  Plants in Group B receive NutraSweet.  Plants in Group C get Sweet & Low.  She finds that those in Group A have the longest roots after two weeks.  There is also a group D.  What is the independent variable?

Which describes BEST how equipment is used in science?

The gram stain differentiates bacteria based on the staining reaction of the: