Leap 2025 Science

Rafflesia plants depend on Tetrastigma vines, insects, and small rain forest mammals so that they can grow and reproduce. How do the small rain forest mammals help the rafflesia?

• eat fruit and spread seeds

• provide materials for growth

• visit flowers and spread pollen

• protect against cold temperatures

• provide food from other parts of the rain forest

Rafflesia plants depend on Tetrastigma vines, insects, and small rain forest mammals so that they can grow and reproduce. How do the insects help the rafflesia?

• eat fruit and spread seeds

• protect against cold temperatures

• provide material for growth

• provide food from other parts fo the rain forest

• visit flowers and spread pollen

Rafflesia plants depend on Tetrastigma vines, insects, and small rain forest mammals so that they can grow and reproduce. How do the tetrastigma vines help the rafflesia?

• eat fruit and spread seeds

• protect against cold temperatures

• provide materials for growth

• provide food from other parts of the rain forest

• visit flowers and spread pollen

Some scientists want to know more about how rafflesia plants affect Tetrastigma vines. Which question should the scientists test?

• How does the habitat of the rafflesia plant affect the rate of Tetrastigma growth?

• How does the size of the rafflesia plant affect the amount of air available for Tetrastigma growth?

• How does the color of the rafflesia plant affect the amount of soil the Tetrastigma can use for its growth?

• How does the presence of the rafflesia plantr affect the amount of water the Tetrastigma can use for its growth?

The nutrients in a rafflesia food web that small rain forest mammals need in order to grow come from________.

• Tetrastigma vines

• Rafflesia plant

• the environment

Answer for the second blank.

The nutrients in a rafflesia food web that small rain forest mammals need in order to grow come from________ because this part of the food web provides ___________.

• shelter for the animals

• matter to rafflesia plants

• nutrients for pollinators

Which type of insect will most likely by attracted to the rafflesia flowers?

• insects that live on the flowers

• insects that hunt other insects

• insects that break down dead animals

• insects that eat plant stems and leaves

Rafflesia plants do not provide food for insects that are attracted to their flowers. Why do the insects most likely visit rafflesia flowers?

• The insects are looking for a place to live on the flowers

• The insects are attracted to the movement of the flowers

• The insects are following other insects that eat the flowers

• The insects are attracted to the rotting meat smell from the flowers.

Predict the mass of the materials after the liquids are mixed. The mass before mixing is 300 g. Which bar graph shows the mass of the materials before mixing and the predicted mass of the materials after mixing?

• same mass before and after mixing 300 g

• the same before and after mixing 50 g

• different mass after mixing

A student recorded some observations after watching the experiment in the video. What are the two statements that provide evidence that mixing the two liquids produced new substances?

• The flask was sealed with a stopper.

• The total mass of the material was measured.

• The flask was tilted over so that the liquids were mixed.

• A white solid formed in the flask.

• The liquid changed to a lighter blue.