AP BIOLOGY

PLANTS

CLASSIFICATION OF PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
These cone producing plants do not lose their leaves in the winter ____
A
angiosperms
B
gymnosperms
C
flowering
D
spore producing
Explanation: 

Detailed explanation-1: -Gymnosperms include most evergreen species such as pines, spruces and firs. Some gymnosperms, including larch and ginkgo, do lose their leaves in the winter. Gymnosperms are often called “conifers” since many of them produce seeds in cones, as well as “softwoods” since many of them have softer wood.

Detailed explanation-2: -Furthermore, gymnosperms produce two different types of cones, namely, large female cones and small male cones. Four groups of gymnosperms are known: CYCADOPHYTA: 100 cycad species (cycad, sago palm) GINKGOPHYTA: 1 plant species (ginkgo)

Detailed explanation-3: -Most gymnosperms are evergreen, but some, such as larch and bald cypress, are deciduous (the leaves fall after one growing season). The leaves of many gymnosperms have a thick cuticle and stomata below the leaf surface.

Detailed explanation-4: -Many are cone-shaped to help snow slide off them so the branches won’t break. The leaves or needles of coniferous trees lose less water than other kinds of leaves. This also helps them survive.

There is 1 question to complete.