Cat 4 Lesson

Eastern white pine

balsam poplar

sweet gum

ginko

A pond ecosystem is populated by a single species of frogs

A state park that includes multiple forest and freshwater ecosystems with many different species of fish, birds and frogs in a variety of colors

A desert ecosystem is populated by organ pipe cacti, camels, and armadillo lizards

Because it can help humans where to determine good places to develop farm land.

Because places that have a healthy biodiversity are unaffected by major disturbances.

Because having a high biodiversity allows ecosystems to withstand major changes.

Because having a high biodiversity allows for fewer opportunities of competition for similar resources.

The puppies chose which genes to express.

The puppies where raised in different areas.

They each have a unique blend of genes from both parents.

The puppies have genetic mutations that make them look different.