Q 01/05

Which tissue carries the sugars made in a tree's leaves to the rest of the plant?

A) Xylem

B) Cambium

C) Phloem

D) Cortex

Answer · why

C) Phloem

In trees the phloem is the innermost layer of the bark, which is why stripping a ring of bark around a trunk can starve the roots and kill the tree.

Q 02/05

Which term describes trees that shed all their leaves for part of every year?

A) Deciduous

B) Herbaceous

C) Evergreen

D) Coniferous

Answer · why

A) Deciduous

Deciduous trees drop their leaves to get through winter or a dry season: bare branches lose far less water and are much less likely to snap under a co...

Q 03/05

What is the name of the world's tallest known living tree?

A) Centurion

B) Methuselah

C) General Sherman

D) Hyperion

Answer · why

D) Hyperion

Hyperion, found by two naturalists in 2006, stands about 380 feet (116 m); in 2022 the park closed the ground around it, on pain of a fine or jail, be...

Q 04/05

Which biome has long cold winters, short mild summers and is dominated by conifers like spruce and pine?

A) Tundra

B) Temperate deciduous forest

C) Boreal forest

D) Mediterranean forest

Answer · why

C) Boreal forest

Boreal forest, or taiga, suits its trees for a reason: their narrow, tapering shape and drooping limbs shed heavy snow, and needles kept through winte...

Q 05/05

What part of a tree is responsible for absorbing water and nutrients from the soil?

A) Roots

B) Trunk

C) Leaves

D) Branches

Answer · why

A) Roots

A tree's roots anchor it to the ground and are crucial for absorbing the water and dissolved mineral nutrients that the tree needs to grow.