5th Grade: Development & Reproduction of Organisms

Which of the following correctly describes the function of flowers?

• To absorb water

• To make food through photosynthesis

• To help the plant reproduce

• To take in sunlight through the petals

Cones are structures on some non-flowering plants. How do cones help plants reproduce?

• They contain seeds, which can grow into new plants

• They spread pollen like flowers

• They scare off predatory animals that might eat the plant

• They get planted and grow into new plants

Jose places a plant near a window and observes that the plant stem begins to grow toward the window. Why would this occur?

• Plant stems support the structure of the plant

• Plant roots will grow upward, in response to sunlight

• The plant stem will grow toward a source of light, to help the plant take in the sunlight

• Plants will grow toward light to absorb more water

Which of the following is needed for plants to make their own food, through photosynthesis?

• Water, sunlight, soil

• Water, sunlight, carbon dioxide

• Water, sunlight, gravity

• Water, sunlight, oxygen

Some types of nonflowering plants reproduce using spores. Which of the following use spores to reproduce?

• ferns, moss, liverworts

• moss, trees, cones

• cones, flowers, seeds

• moss, cones, pines

What is the function of the kidneys?

• To break down food for digestion

• To pump blood through the body

• To control movement

• To filter waste from the blood

What is the function of the lungs?

• To exchange oxygen for carbon dioxide, allowing organisms to breathe

• To provide support for the skelton and muscles

• To pump blood throughout the body

• To filter waste from the blood

Germination is the beginning stage of plant growth. What can be observed during this process?

• The seed will open and sprout a root

• The seed will grow a stem to support the plant

• The seed will absorb water from soil

• The seed will begin to grow into a flower

Which organ sends signals to other parts of the body, telling the body to move?

• The kidneys

• The heart

• The lungs

• The brain

What is the function of the stamen?

• To create pollen, to help the plant reproduce

• To move pollen into the pistil, for fertilization

• To spread seeds, through seed dispersal

• To attract pollinators, such as bees