Living Things: Structure and Function OBJECTIVE 1

Why would holes in a plant’s leaves be a beneficial adaptation?

• because sunlight could not reach the lower leaves and use all of the nutrients

• because the holes would allow more air to cool off the plant

• because the sun could not burn as much of the leaf area

• because predators would stay away, thinking the plant had already been eaten

The picture shows a pine tree that grows in cold mountain climates. What structure helps the tree reproduce in a cold climate?

• growing wide and low to the ground to support heavy snow

• growing seeds in a cone to protect against the cold

• having a waxy coating on its leaves to keep water in

• having a thick, hard bark to prevent water loss

What is it called when a plant has a structure that helps them survive in a specific environment?

• character

• formation

• adaptation

• reproduction

A cactus often has spines. Spines help the plants by ____________.

• transferring pollen

• absorbing water from the air

• protecting against predators

• attracting pollinators

Why are most pollinators attracted to plants?

• the smell of soil

• the taste of leaves

• the color of flowers

• the sounds of other insects

Which structure protects the reproductive part of the plant?

• sepal

• flower

• leaf

• pistil

Which of the following are reproductive structures in a plant? Choose all of the correct answers. There are 3.

• pistil

• leaf

• roots

• flower

• stamen

The fruit of a plant is full of _______.

• cones

• bark

• roots

• seeds

Orchid flowers use their _______, _______, and _______ to attract pollinators.

• color, scent, shape

• color, stems, petals

• pistils, scent, roots

• petals, roots, stems

The leaves of a plant are green. What part of the plant’s cells makes it green?

• cell wall

• nucleus

• chloroplast

• mitochondria