Which is an example of mimicry? A school of striped fish swim together, making it difficult for predators to see the edges of
A.
each fish,
B.
C.
A fawn's coat is dappled with white spots that help it blend in with the forest.
A leaf-tailed gecko looks like a dead leaf as it clings to a twig.
D. A penguin's coloring blends in with the water surface from both above and below, while it
swims.

With the description of the different cell walls, membranes, and associated proteins set in the students' minds, you now need to introduce them to the idea that the cell wall can also act as a foundation to build things upon. bacterial appendages require a strong foundation that will offer the support needed to move and function in a dynamic world. for example, flagella are long, whiplike protein structures that are used by many gram-positive and gram-negative bacteria for locomotion. in order to function effectively, a flagellum must be firmly anchored to the cell wall. how will you be able to get across the idea that the peptidoglycan cell wall is strong enough to support such a mechanism? with a protein rod that passes through the cell wall and protein rings used to anchor it in the membranes, these basal bodies are the rudimentary biological motors that use atp power to spin the hook and the flagella attached to it. bacterial flagella have a biological motor that spins within the cell wall and is powered by atp. this allows the flagella to spin in a whiplike motion to propel the bacterium.

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist

Construct at least two possible hypotheses for the student’s experiment.