I understand that I must remain fully in view of the external webcam for the entire duration of the test, including while capturing and uploading my work at the end. If I need to step away briefly for an urgent reason, I will say so aloud before leaving and return as quickly as possible, keeping the webcam and screen active.

In plants, plasmodesmata allow substances to travel directly between the cytoplasm of neighboring cells. Which structures perform a similar function in animals?

In class, we compared ATP to a $20 bill. Which one of the following statements is NOT accurate?

Bamboo grows very quickly, at rates of even a few feet per day, making woody tissue that is reinforced by cellulose. Where does the DRY MASS of this plant mostly come from?

Which one of the following would be expected to have the LOWEST pH?

The mycelium is a highly branched structure of fungal filaments. The image below shows the fuzzy, hairy mycelium of oyster mushrooms growing on coffee grounds. (Image credit Tobi Kellner, CC BY SA 3.0) This mycelium’s structure suits its function because it…

Which one of the following is a function of the cytoskeleton’s microfilaments?

Why do our brains die quickly if we stop breathing?

Which of the following would be LEAST likely to diffuse freely across the membrane of a cell?

11 Use the data in problem 7 above to find the range. Round approporiately.