Plants & Animals Review

Plants need these four things to stay alive and healthy

• air, water, nutrients and soil

• air, water , nutrients, and fertilizer

• air, water, nutrients, and sunlight

• air, water, nutrients, and shade

Water, sunlight, and carbon dioxide are all needed for the process of _________________ to occur.

• polination

• reproduction

• fertilization

• photosynthesis

Needle shaped leaves help a plant _____________ water

• create

• store

• conserve

• absorb

One of the functions of a plant's vascular system is to _________.

• use energy from light to make food

• connect the leaves, stems, and roots

• hold up the leaves so they can absorb sunlight

• take in water and nutrients from the soil.

Plants that live in ___________ climates have structures that help them slow the loss of water.

• dry

• wet

• windy

• cold

Spines, thorns, and prickles all ____________.

• keep plants from getting too much sun

• provide plants protection from animals

• poison animals that come near the plant

• help the plant kill insects

Resin , produced by conifers, is a ___________________

• tough outer covering that protects a plant

• are sharp pointy spikes that protect a plant

• stiff, thin leaf that is very sharp

• sticky substance that traps insects when they bite into the tree

When a male and female structure come together a combine, the process of _______________ takes place.

• pollination

• fertilization

• circulation

• evaporation

Pine trees reproduce using _______________________.

• flowers

• seeds with tiny hooks

• seeds that float on water

• male and female cones

Seeds that float on water have a ______________ structure

• hollow

• hook

• barb

• dense and heavy