Ecology STAAR Scavenger Hunt Review

Which succession starts with SOIL and the first life to grow is seasonal grasses and weeds?

• Primary Succession

• Secondary Succession

• Climax Community

• Pioneer Species

Answer explanation

Remember: Primary Succession begins with ROCKS. They either come from a melted glacier or Volcano

Secondary Succession has SOIL(SSS). Example a fire happened and burned a forest down but because there is SOIL, THE FOREST GROWS BACK.

Which ecological relationship is mentioned below?

Spores of a fungus grow on sweet corn. The fungus then infects the plant tissues and takes nutrients from the plant cells

• Mutualism

• Parasitism

• Predation

• Commensalism

Tags

NGSS.MS-LS2-3

What percent of the available energy moves from one trophic level to the next?

• 90%

• 100%

• 10%

• 25%

Tags

NGSS.MS-LS2-3

What happens to the 90% of energy that is not transferred to the next trophic level?

• Lost at 10%

• Gained as heat through cell processes

• Lost as heat through cell processes

Tags

NGSS.MS-LS2-3

What is the most stable and biodiverse ecosystem called?

• Climax Community

• Primary Succession

• Secondary Succession

Answer explanation

Climax communities are present at the end of both Primary and Secondary Succession. A climax community has the most biodiversity, meaning there is MANY different types of living organisms.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Write the complementary DNA strand to the one below.

GCG CTT ATC

• CGC GAA TAG

• GCG TTA TCG

• GAT AAG GCG

Answer explanation

Adenine pairs with Thymine

Cytosine pairs with Guanine

If the mice are removed, what would happen to the snake population?

• The snake population would decrease.

• The snake population would increase.

• The mice population would decrease.

• The rabbit population would increase

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What type of bonds hold the two strands of DNA together?

• Hydrogen Bonds

• Oxygen Bonds

• Nucleic Bonds

Answer explanation

Hydrogen bonds hold 2 nucleotides together. This allows the DNA to have 2 strands(double helix)

The removal of which trophic level would cause the most significant damage to the ecosystem?

• Primary Consumer

• The producers

• Secondary Consumer

• Tertiary Consumer

Answer explanation

Producers(plants,plankton,kelp, algae) have to most energy because they are receiving it directly from the SUN.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What is the definition of commensalism?

• Both organisms benefit

• One eats the other

• One organisms benefits (helped to survive) the other gets nothing.

• One takes nutrients away