Ch. 9 B Diversity Of Life

What are the charophytes? An extinct group of protists that may have given rise to the fungi Closest living ancestors of the first plants Algae that live symbiotically with fungi Smallest living plants

How does a plant's cuticle allow it to live on land? By preventing the gametes from drying out By preventing water loss By increasing structural support By absorbing nutrients from the soil

What do plants, algae, and some bacteria have in common that is not shared with fungi or animals? Mycorrhizae Cell walls Spores Photosynthesis

The symbiotic relationship between plants and bacteria can best be observed in the ________ of plants. root hairs stomata root nodules mycorrhizae

How does a plant get the carbon it needs to make glucose? From the soil From the water From the air From fungus or bacteria

Where do plants typically store their starches and sugars for later use? In the roots In the buds In the stems In the leaves

If the phloem in a tree trunk were to become blocked, how would this affect the plant? Sugars could not be made. Sugars could not be transported from leaves to roots. Water could not be sent to the roots. The leaves would dry out.

Is a leaf considered a plant organ or a plant tissue, and why? Tissue, because plants don't have organs Organ, because it performs several functions Tissue, because it contains multiple cell types Organ, because it contains multiple tissues

Which was the most recent plant structure to have evolved? Seeds Cones Vascular system Flowers

Which plants do not have roots? Ferns Angiosperms Bryophytes Gymnosperms

What do gymnosperms and angiosperms have in common? Seeds Flowers Spores None of these

Why must mosses and ferns live in moist environments? They don't have any roots to absorb moisture from. They are pollinated by fish and aquatic insects. Their gametes are flagellated They lack a waxy outer layer.

Not all plants have seeds. What advantage do seeds provide a plant? Plants are no longer required to produce cones. Plants are no longer required to go through an alternation of generations. Plants are no longer required to produce gametes. Plants are no longer restricted to moist environments.

Which is not a characteristic of the gymnosperms? Pollen Cones Flowers Seeds

Why do pine trees have two different types of cones? One type produces seeds, the other type produces fruit. One type is produced in the fall, the other type is produced in the spring. One type produces the gametophyte, the other type produces the sporophyte. One type produces ovules, the other type produces pollen.

Which plant group is the largest with the most number of living species? Seedless vascular plants Flowering plants Seedless, nonvascular plants Cone-bearing plants

What is the role of the fleshy part of a ripe apple? To protect the seeds from being eaten To entice an animal to take the fruit and disperse the seeds To attract a pollinator To provide nourishment to the seeds

Which plant typically has parallel leaf veins and a fibrous root system? Monocot Conifer Dicot Legume

The male part of the flower is the ________. carpel petal sepal stamen

The pollen tube grows from the ________ to the ________, where it eventually fertilizes the egg. petal; ovary sepal; filament anther; style stigma; ovule

If you were to observe a flower that lacked petals, fragrance, or nectar, what might you conclude is the pollinator? Wind Moths Bees Ants

Assuming it doesn't die unexpectedly, how often would you need to replant an annual? Every two years Every season Every year Never

In which region of the plant are you most likely to find cells dividing by mitosis? Sapwood Meristem region Growth rings Heartwood

What causes the annual growth rings of trees? Residual bark left over when the trunk of the tree expands Sugars left over from the previous summer Damage caused by fungi that occurs during the wetter months Different growth rates at different times of the year

What does a gametophyte produce? Diploid gametes Haploid spores Diploid spores Haploid gametes

While mosses can cover a significant area of land, they are never more than a few centimeters tall. Why do they not grow tall? They don't get enough sunlight to grow tall. They have no vascular system so they cannot transport water over long distances. Herbivores constantly eat them to the ground. They are annuals and simply don't live long enough to get very tall.

The xylem is made from ________. dead, hollow cells intercellular spaces between cells tubular living cells elongated living cells

What is a tuber? A drought-resistant life stage of a plant A water storage structure of a plant A reproductive structure on a plant A sugar storage structure of a plant

The sugar in the sap of plants is primarily ________. maltose sucrose glucose fructose

The flattened photosynthetic portion of a fern is the ________. leaflet frond leaf fan

Fern sperm are ________. ciliated flagellated amoeboid None of these