Day 3(HH10)

Long Term Environmental Changes

• Occurs gradually

• Affects organisms slowly

• Organisms adapt or go extinct

Short Term Environmental Changes

• Occurs quickly

• Affects organisms immediately

• Organisms move away or die

Multiple Choice

environmental change is described as

• breeding of organisms

• a disturbance in the environment

• changes in genetic material

Multiple Choice

Trees lose water through transpiration.

Which of these is most likely observed in an area experiencing a long-term drought?

• Trees with broad leaves will be more healthy that trees with needlelike leaves

• Trees with leaves that have waxy coverings will be more healthy than trees without wax-covered leaves.

• Trees with broad leaves will be more healthy than trees with small, flat leaves

• Trees with leaves without hairlike structures will be more healthy that trees with leaves covered by hairlike structures.

Multiple Choice

Short-Term or Long-term Environmental Change?

• Short-Term

• Long-term

Multiple Choice

Short-term or Long-term environmental Change?

• Short-term

• Long-term

Multiple Choice

Can cause extinction

• Short Term

• Long Term

Invasive Species

​An invasive species is an organism that causes ecological harm or economical harm in an evironment where it is not native.

​Lionfish are native to the Indo-Pacific but now live along the southeast coast of the US, the Caribbean, and in parts of the Gulf of Mexico.

Multiple Choice

Buffelgrass is an invasive species of grass from Africa that outcompete native Texas grasses for space and water.

Which long-term change to a Texas grassland would most likely occur due to the introduction of buffelgrass?

• The population of the native grasses will increase

• The population of the native grasses will decrease

• Buffelgrass offspring will develop traits like those of native grasses.

• Buffelgrass offspring will develop traits like those of other invasive species.

Multiple Choice

When taken to a new habitat, non-native plants often threaten native plants of the new habitat.  Why do they do this?

• Non-native plants are able to mutate rapidly

• Non-native  plants cause native animals to relocate

• Non-native plants are able to be used for medicine

• Non-native plants compete with native plants for resources

Multiple Choice

Predict which moth would increase in population

• light 

• dark

Multiple Choice

A group of birds in an area eats many kinds of seeds. A disease kills all the plants in an area except for tall trees that produce hard seeds. Which of these traits will future generations of the birds most likely have?

• Webbed feet and strong wings

• Strong wings and strong beaks

• Strong beaks and webbed feet

• Showy feathers and Small beaks

Multiple Choice

Causes changes in DNA of the organism causing adaptations.

• Short term impact

• Long term impact