One important difference between covalent and ionic bonds is that:

The functions of cell vacuoles include deterring predators, managing wastes, and producing flashy pigments to attract pollinators. What additional services can vacuoles provide?

In your lab, you notice that pea plants that were given a mixture of water and fertilizer have grown nearly three times as tall as pea plants that were given water only. This step of the scientific method is:

The process of embryonic folding begins in the week of development.

The inner cell mass of the blastocyst eventually develops into the .

Which of the following tissues is NOT derived from the ectoderm?

Match the following embryonic structures with their corresponding functions or derived components:

The embryonic period is critical for the development of all major .

The accumulation of fluid in the morula leads to the formation of the .

Which of the following structures is primarily formed from neural crest cells?