M2 exam

What seedless plant is a renewable source of energy?

Sphagnum moss

Which one of these characteristics is present in land plants and not in Charles ?

Alternation of generations

The production of megaphylls by many different species of plants is an example of ?

Parallel evolution

which of the following traits of land plants allows them to grow in height ?

Tracheids

How does a haplontic plant population maintain genetic diversity ?

Zygotes are produced by random fusion

How do mosses contribute to returning nitrogen to the soil?

Mosses decompose rocks and release nitrogen

The dominant organism in the fern is the

Sporophyte

A scientist sequences the genome of chara, red algae and a tomato plant . What result would support the conclusion that Charophytes should be included in the plantar kingdom?

The chara genome is more similar to the tomato plant genome than the red algae genome

The land plants are probably descendants of which of these groups ?

Green algae

A plant in the understory of a forest displays a segmented stem and slender leaves arranged in a whorl. It is probably a ?

Horsetail

The following structures are found on the underside of fern leaves and contain sporangia

Sori

The chromosome complement in a moss protonema is

1n (haploid )

Which of the following features does not support the inclusion of charophytes in the plantae kingdom ?

Charophyes are multicellular organisms that lack vascular tissue

Which of the following structures is not found in bryophytes ?

Root

A botanist travels to an area that has experienced a Long , severe drought . While examining the bryophytes in the area , he notices that many are in the same life- cycle stage. Which life-cycle stage should be the most common ?

Gametophye

Why do mosses grow well in the arctic tundra ?

They do not have true roots and can grown on hard surfaces

Which of the following traits of land plants allow them to grow in height ?

Tracheids

Which of the following structures widens the geographic range of a species and is an agent of dispersal ?

Seed

Megasporocytes will eventually produce which of the following ?

Female gametophytes

Which of the following structures in a flower is not directly involved in reproduction ?

The sepal

Pollen grains develop in which structure ?

The anther

Which of the following plant structures is not a defense against herbivory?

nectar

In the northern forests of Siberia, a tall tree is most likely a

Confier

What is the order of

the following structures, gametophyte, seed embryo, spore, sporophyte ?

1n,2n,1n,2n

White and sweet smelling flowers with nectar that open at night are probably pollinated by____

Moths

Seed plants are___

All heterosporous

In the course of double fertilization, one sperm cell fuses with the egg and the second one fuses with_____

The polar nuclei of the center cell

Which of the following traits characterizes gynosperms ?

The plants carry exposed seeds on modified leaves

Abundant and powdery pollen produced by small, indistinct flowers is probably transported by

Wind

Corn develops from a seeding with a single cotyledon, displays parallel veins on its leaves, and produces monosulcate pollen. It is most likely ____

a monocot

Which of the following structures widens the geographic range of a species and is an agent of dispersal ______

a seed

Besides the seed, what other major structure diminishes a plant’s reliance on water for reproduction?

Pollen

In which of the following geological periods would gymnosperms dominate the landscape ?

Triassic

Plants are a source of _____

-medicine

-food

-fuel

-all listed

all of the listed

The ______ are collectively called the calyx

Sepals

The fertilized ovule gives rise to the ______

Seed

The pollen lands on which part of the flower ?

Stigma

After double fertilization , a zygote and _____ form.

endosperm

_____ is a useful method of asexual reproduction for propagating hard -to-root plants

Grafting

What is the term for a fruit that develops from the tissues other than the ovary?

Accessory fruit

The_____ is the outermost covering of a fruit

Exocarp

In a plants male reproductive organs, development of pollen takes place in a structure known as the _______

Microsporangium

Plants that flower once in their lifetime are known as _____

monocarpic

Plant species that complete their lifecycle in one season are known as _____

annuals

The stamen consists of a long stalk called the filament that supports the _____

Anther

Which of the following is an advantage of asexual reproduction?

When cuttings or buds are taken from an adult plant or plant parts, the resulting plant will grow into an adult faster than a seeding

After double fertilization, a zygote and ___ form

Endosperm

What characteristic of Charales would enable them to survive a dry spell ?

Sporopollenin

Alternation of generations means that plants produce ?

Both haploid and diploid multicellular organisms