Biology Extra Credit

What is the definition of an ecosystem?

• A: An un-natural unit consisting of plants, animals, and mico-organisms in an area functioning together with the non-living physical factors of the environment.

• B: An natural unit consisting of plants, animals, and mico-organisms in an area functioning together with the non-living physical factors of the environment.

• C: An natural unit consisting of plants, animals, and mico-organisms in an area functioning separately from the non-living physical factors of the environment.

Changes in WHICH of the following factors will result in a change of an ecosystem's structure and composition? Check all that apply.

• A: nutrient availability

• B: temperature

• C: number of trees

• D: light intensity

Sunlight, temperature, precipitation, water or moisture are all abiotic(non-living) components to an ecosystem. Which of the following is also an abiotic component of an ecosystem?

• A: soil/water chemistry

• B: carnivores

• C: Plants

• D: Microbes

Which cell feature is responsible for making proteins?

• A: lysosomes

• B: ribosomes

• C: mitochondria

What is the name of the jelly-like substance that is inside the cell?

• A: cytoplasm

• B: ectoplasm

• C: cytokinesis

What cell feature is responsible for powering the cell?

• A: endoplasmic reticulum

• B: golgi apparatus

• C: mitochondria

Where in the cell does DNA replication take place?

• A: ribosomes

• B: nucleus

• C: nucleolus

What is one major feature that plant cells have that animal cells do not?

• A: lysosome

• B: cell wall

• B: cell wall

The plant cell structure where photosynthesis takes place is called...

• A: chloroplast

• B: chlorophyll

• C: vacuole

Who is the Principal of The Dalles High School

• Mr Evans

• Mr Williams

• Mr Morgan

• Mrs. Moore