Angiosperms

Question 1

Angiosperms

Answer 1

Are seed plants with reproductive structures called flowers and fruits

Question 2

They are the most ________ of all plants

Answer 2

Widespread

Question 3

All angiosperms are classified in a single phylum, _______

Answer 3

Anthophyta

Question 4

Angiosperms have two key adaptations

Answer 4

Flowers and fruit

Question 5

The ________ is an angiosperm structure specialized for sexual reproduction

Answer 5

Flower

Question 6

Many species are pollinated by ______ or _____, while some species are _______ pollinated

Answer 6

Insect or animals, wind

Question 7

A flower is a specialized shoot with up to four organs

Answer 7

Sepals, which enclose the flower
Petals, which are brightly colored and attract pollinators
Stamens, which produce pollen (Anther & Fillamen are the boy parts)
Carpels, which produce ovules (Stigma, Style, Ovary, and Ovule the girl parts)

Question 8

Flowers that have all four organs are called ______

Answer 8

Complete flowers

Question 9

While those lacking one or more organs are called _______

Answer 9

Incomplete flowers

Question 10

Flowers may have __________ or _________

Answer 10

Radial or bilateral symmetry

Question 11

For flowers with _______, an imaginary line through the central axis divides the flower into two equal parts

Answer 11

Radial symmetry

Question 12

In ___________, a flower can only be divided into two equal parts by a single imaginary line

Answer 12

Bilateral symmetry

Question 13

Most species have flowers with both functional_______ and _______

Answer 13

Stamens and carpels

Question 14

Some species have both reproductive parts but one may not be __________

Answer 14

Functional

Question 15

Some species reproductive parts occurs on ________

Answer 15

Separate flowers

Question 16

A ________ is formed when the ovary wall thickens and matures

Answer 16

Fruit

Question 17

Fruits protect seeds and aid in their ______

Answer 17

Dispersal

Question 18

Mature fruits can be either _____ or _____

Answer 18

Fleshy or dry

Question 19

3 ways of seed dispersal

Answer 19

Wind ( explosion) (wings)
Dispersed in animal feces
Hitchhikes on animals

Question 20

Parts of the flower (male)

Answer 20

Anther and filament

Question 21

Flower parts (Female)

Answer 21

Stigma, style, ovary, ovule

Question 22

Non reproductive parts of the flower

Answer 22

Petal, receptacle, speak

Question 23

The stamen contains ________

Answer 23

Pollen grains

Question 24

The carpel contains the _______

Answer 24

Ovules

Question 25

Ovule contains the ________

Answer 25

Embryo sac

Question 26

Most flowers have a mechanism to ensure __________ between flowers from different plants of the same species

Answer 26

Cross-pollination

Question 27

A pollen grain that has landed on a stigma _________ and the ______ grows down to the ovary

Answer 27

Germinates and pollen tube

Question 28

The sperm enters the ovule through the _________

Answer 28

Micropyle

Question 29

________________ occurs when the pollen tube discharges two sperm nuclei into the female gametophyte called _________

Answer 29

Double fertilization ,triploid endosperm

Question 30

One sperm nuclei fertilizes the egg, while the other combines with two polar Nuclei to form a food storing ___________

Answer 30

Endosperm

Question 31

The ____________ nourishes the developing embryo (food for the baby)

Answer 31

Triploid endosperm

Question 32

With tin the seed, the embryo consist of a _______ and one or two seed leaves called _________

Answer 32

Root , cotyledons

Question 33

Radicle

Answer 33

Root

Question 34

Hyptycol

Answer 34

Stem

Question 35

Epicotyl

Answer 35

Stem

Question 36

Angiosperms have more than ________ living species

Answer 36

250000

Question 37

Previously angiosperms were divided into two main groups

Answer 37

Monocots (one cotyledon) | Dicots (two dicots)

Question 38

DNA studies suggest that dicots are ________

Answer 38

Polyphyletic

Question 39

Classification based on the # ________ was used until late 1990's

Answer 39

Cotyledons

Question 40

Current classification uses ___ groups

Answer 40

Four

Question 41

The clade eudicot (true dicots) includes most ______

Answer 41

Dicots

Question 42

__________________ are the oldest lineages

Answer 42

Basal angiosperms

Question 43

Three types of basal angiosperms

Answer 43

Amborella trichopida , nymphaea (water lily) , (illicium) star anise

Question 44

Amborella trichophida is the only _________________

Answer 44

Surviving species

Question 45

______________ share some traits with basal angiosperms but evolved much later

Answer 45

Magnoliids

Question 46

Magnolias include

Answer 46

Magnolias, laurels, and black Pepper plants

Question 47

Magnoliids are more closely related to _________ and ___________ than basal angiosperms

Answer 47

Monocots and eudicots

Question 48

More than one quarter of angiosperm species are ____________

Answer 48

Monocots

Question 49

Monocots include

Answer 49

Orchids, grasses, palms

Question 50

More than two-thirds of the angiosperm species are __________

Answer 50

Eudicots

Question 51

Eudicots include the large ______ family and the economically important ______

Answer 51

Legume, rose

Question 52

Our reliance on seed plants makes preservation of plant diversity ________

Answer 52

Critical

Question 53

Most of our food comes from _______

Answer 53

Angiosperms

Question 54

Six crops ___________ yield 80% of the calories consumed by humans

Answer 54

Wheat, rice, maize, potatoes, cassava, and sweet potatoes

Question 55

____________ crops are products of relatively recent genetic change resulting from_________

Answer 55

Artificial selection

Question 56

Many seed plants provide ______

Answer 56

Wood

Question 57

Secondary compounds of seed plants are used in ___________

Answer 57

Medicines

Question 58

Loss of plant __________ is often accompanied by loss of the animal species that plant supports

Answer 58

Habitat

Question 59

At the current rate of habitat loss ____ of earths species will become extinct within the next _______years

Answer 59

50% , 100-200

Question 60

The tropical rain forest may contain undiscovered ____________

Answer 60

Medicinal compounds

Question 61

Three examples of eudicots

Answer 61

``` Snow pea ( pisum sativum) a legume Dog rose (rosa canina) a wild rose Pyrenean oak ( Quercia pyrenaica) ```

Question 62

Three examples of monocots

Answer 62

Orchid (lemboglossumrossil) Pygmy date palm ( Phoenix roebelenil) Barley (hordeum vulgave) a grass

Question 63

Three examples of magnoliids

Answer 63

Southern magnolia (magnolia grandiflora) Laurels Black pepper

Question 64

Three examples of basal angiosperms

Answer 64

``` Water lily ( nymphaea "Rene Gerard") Star anise (illicium) Amborella (trichopida) ```