9. The Piney Woods Ecoregion of East Texas is the wettest area of the state. It contains many forests, wetlands, swamps, and marshes. One year, there was so much rain that a river formed in a longleaf pine forest. The formation of the river changed the local population of alligators by - A increasing and then decreasing the population of alligators, as they first had to adapt to the river before, they could survive in it.

B. increasing the population of alligators, as alligators had more places to lay eggs.

C. Keeping the population of alligators constant, as some left when the river formed and others came to take their place.

D. decreasing the population of alligators, as they had fewer places to search for food.

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.

Where are the strongest jet streams located?

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?