In this video you'll study the structure of the cell membrane and construct it using the correct molecules.

In this well-illustrated object, learners examine basic floral anatomy. The flower is the reproductive organ of the angiosperm.

In this video, learners view the parts of an animal cell and its organelles.

Learners listen to the pronunciation of fungi names and then type the terms. They may choose the number of names that they wish to spell (up to 13). Immediate feedback is given, and a final score is provided at the end of the activity.

Learners read about endospores and view video clips demonstrating spore staining procedures. Correctly stained slides are shown. The learning object includes two matching exercises.

In this learning activity you'll analyze the basic steps in conjugation and applies the effect to microbial characteristics.

Learners read how fruits are classified according to their texture and according to how they developed from their floral anatomy.

Learners listen to the pronunciation of the binomial names for microorganisms and then type the words. They may choose the number of names that they wish to spell (up to 112). Immediate feedback is given, and a final score is provided at the end of the activity.

Learners listen to the pronunciation of bacteria names and then type the words. They may choose the number of names that they wish to spell (up to 70). Immediate feedback is given, and a final score is provided at the end of the activity.

Learners listen to the pronunciation of protozoa and worm names and then type the words. They may choose the number of terms that they wish to spell (up to 25). Immediate feedback is given, and a final score is provided at the end of the activity.

Learners read a general description of the function and structure of leaves and examine drawings and microscopic views. A matching exercise completes the learning object.