Q1. Different squamous cells, cuboidal and columnar cells have large, open cytoplasms. Which of the functions of epithelial tissue are supported by having such big cells?

Q2. What is the pattern in data from Seeley’s field experiment?

What does this pattern suggest about whether and why crabs cause snail populations to evolve?

Q3. What strategies do other organisms have that allow them to live in environments that are hypertonic to their cytoplasm?