Plant Diversity 2

Question 1

an embryo and nutrients surrounded by protective coat

Answer 1

seed

Question 2

_____ and ______ are key adaptations for life on land

Answer 2

seeds and pollen grains

Question 3

All are common to seed plants

Answer 3

reduced gametophytes, heterospory, ovules, pollen

Question 4

dominant life cycle of mosses and non vascular plants

Answer 4

gametophyte

Question 5

dominant life cycle of fern and seedless plants

Answer 5

sporophyte

Question 6

dominant life cycle of seed plants

Answer 6

sporophyte

Question 7

two major seed plants

Answer 7

gymnosperms and angiosperm

Question 8

Gymnosperm gametophytes are found in _______

Answer 8

cones

Question 9

Angiosperm gametophytes are found in _____

Answer 9

flowers

Question 10

Ovulate cone

Answer 10

Female gametophytes of gymnosperm

Question 11

Pollen cone

Answer 11

male gametophytes of gymnosperm

Question 12

Gives rise to female gametophytes

Answer 12

megaspores

Question 13

Gives rise to male gametophytes

Answer 13

microspores

Question 14

Made up of megasporangium, megaspore and one/more protective integuments

Answer 14

ovule

Question 15

Fertalized ovule becomes

Answer 15

seed

Question 16

microspores develop into _____ , contain male gametophytes

Answer 16

pollen grains

Question 17

transfer of pollen from male to female part containing ovules

Answer 17

pollination

Question 18

Two evolutionary advantages of seeds over spores

Answer 18

1. Remain dormant for days to years until favorable conditions
2. May be transported long distances by wind/animals

Question 19

have naked seeds

Answer 19

gymnosperms (cones)

Question 20

Two clades of seed plants

Answer 20

gymnosperms and angiosperms

Question 21

cone-bearing gymnosperms

Answer 21

conifers

Question 22

high tolerance to air pollution

Answer 22

ginkgo biloba

Question 23

preform year round photosynthesis

Answer 23

conifers

Question 24

one of the oldest living organism (conifer)

Answer 24

Sequoia

Question 25

Three key features of gymnosperm life cycle are

Answer 25

dominance of sporophyte generation, transfer of sperm to ovules by pollen, development of seeds from fertilized ovules

Question 26

seed plants with reproductive structures called flowers and fruits

Answer 26

angiosperms

Question 27

Phylum that classifies all angiosperms

Answer 27

Anthophyta

Question 28

Angiosperm structure specialized for sexual reproduction

Answer 28

Flower

Question 29

modified leaf that encloses the flower

Answer 29

septals

Question 30

modified leaf that are brightly colored and attract pollinators

Answer 30

Petals

Question 31

Produce pollen on terminal anthers

Answer 31

Stamens

Question 32

Consist of ovary containing ovules at the base and a style holding up a stigma, where pollen is recieved

Answer 32

Carpels

Question 33

Where pollen is recieved

Answer 33

Stigma

Question 34

Produces pollen

Answer 34

Anthers

Question 35

Typically consists of mature ovary

Answer 35

Fruit

Question 36

Protects seeds and aids in seed dispersal

Answer 36

Fruit

Question 37

Female gametophyteof angiosperm

Answer 37

embryo sac

Question 38

a pollen grain that lands on a stigma ______, and the ________ of the male gametophyte grows to ovary

Answer 38

germinates, pollen tube

Question 39

Occurs when the pollen tube discharges 2 sperm into the female gametophyte within an ovule

Answer 39

Double Fertilization

Question 40

Results from second sperm combining with 2 nuclei, food storing

Answer 40

endosperm

Question 41

Nourishes developing embryo

Answer 41

endosperm

Question 42

Two main groups of angiosperms

Answer 42

Monocots and Eudicots

Question 43

Have one cotyledon

Answer 43

Monocot

Question 44

Have two cotyledons

Answer 44

Eudicot

Question 45

Two important relationships in terrestrial ecosystems

Answer 45

Pollination of flowers and transport of seeds by animals

Question 46

NO group of plants is more important to human survival than

Answer 46

Seed plants

Question 47

Plants are key sources of food, fuel ____ and _____

Answer 47

wood products, medicine

Question 48

Most of our food comes from

Answer 48

angiosperms

Question 49

These parts of seed plants are used in medicine

Answer 49

secondary compounds

Question 50

Modern crops are products of

Answer 50

artificial selection

Question 51

Four phyla of gymnosperms

Answer 51

Cycadophyta, Gingkophyta, Gnetophya, Confierophyta

Question 52

Why pollen grains are important adaptation

Answer 52

don't need water for fertilization

Question 53

Destruction of habitat is causing ______ of many plant species

Answer 53

extinction

Question 54

% of earth's species will become extinct within the next 100-200 years

Answer 54

50%