Q3 Exam 24-25

Which graph displays mutualism?

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Which graph displays predator-prey?

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Which graph displays parasitism?

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Which graph displays commensalism?

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Why does this graph display mutualism?

• one organism is benefiting, the other is harmed slowly over time

• one organism is benefitting, the other is unaffected

• both organisms are benefitting

• one organism benefits and the other is hunted and killed for food

Why does this graph display parasitism?

• line a goes up (benefit), line b goes up (benefit)

• line a goes down (harm), line b goes up (benefit)

• line a stays neutral while line b increases (benefits)

• line a decreases (harm), while line b is neutral

English Ivy is a decorative vine brought to the US from Europe. Many people like to grow it up trellises and fences. It spreads quickly and will grow up trees. Over time it will grow all over the ground, shading out other plants. When it gets in trees it can kill them if left alone too long.

Which 2 pieces of evidence support English Ivy being an invasive species?

• English ivy is a decorative plant from Europe.

• Many people like growing English Ivy on a fence.

• When English Ivy gets in trees it can kill them.

• English Ivy spreads quickly and shades out plants.

English Ivy is a decorative vine brought to the US from Europe. Many people like to grow it up trellises and fences. It spreads quickly and will grow up trees. Over time it will grow all over the ground, shading out other plants. When it gets in trees it can kill them if left alone too long.

Which claim BEST supports English Ivy's habits in the US?

• As an introduced species, English Ivy is used for many forms of decoration.

• English Ivy is an introduced species.

• English Ivy is an invasive species.

• English Ivy spreads quickly and shades out plants, so it is an invasive species.

Which process is represented by this model?

• primary succession

• climax community

• secondary succession

• tertiary succession

During the pioneer stage, what is biodiversity like?

• There is more biodiversity because new seeds are spreading.

• There is more biodiversity because there is fresh new soil.

• There is less biodiversity because only grass and perennials are growing.

• There is less biodiversity because there are lots of tall trees making a forest.