Cells in our intestines play important roles. One function they have is to absorb water that will then be transported to other parts of the body. Their ability to absorb water efficiently is quite important. These cells have villi, or small protrusions in their cells that increase their surface area. What characteristics would improve a cell’s surface to volume ratio? Choose three options.

Increase the surface area but keep the volume relatively the same.
Increase the length of the cell in order to increase both surface area and volume.
Divide a cell into many, increasing the surface area.
Increase the volume of a cell.
Change the shape to one that has a better surface to volume ratio.

For a to be healthy, it has to have lots of different kinds of plants and animals. all of the different types of plants and animals in an ecosystem. name four types of ecosystems from those listed in the video. b) c) d) most living things live here. all living things depend on how an ecosystem like a game of sticks? why should we build new buildings on existing land? name four extinct species from those listed in the video. b) c) d) the best way to wipe out a species is to the largest ecosystem in the world is this percent of the world is covered by water. how many of all species in the world live in the ocean? list five things you can do to increase biodiversity. b) c) d) e) how many species are we losing per hour?

What is the inability of an individual or a society to achieve a minimum standard of living known as ?

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the