Lines of angiosperms evolution
v Angiosperms
appeared----------- years ago.
A) 130 million B)
200 million C) 100 million D) 150 million
v The
most closely related plants to angiosperms are----------.
A) Aquatic
plants B) seed plants C) seed ferns
D) desert plants
v Xylem
of Some gametophytes is--------to xylem found in angiosperms.
A) Different
B) similar
C) both a and b D) non of these
v Seed
bearing cupules evolved into the-------- of flowers.
A) Leafs
B) petals C) carpals D) petioles
v Approximately---------of
angiosperm species are classified as either monocotyledonous.
A) 50%
B) 70% C) 97% D) 100%
v The
early angiosperms were------- to drought and cold.
A) Extinct
B) destroy C) well adapted D) non of
these
v Adaptation
that conferred resistance including-------.
A) Strong
stem B) strong leaves C) strong
petioles D) all of these
v Harris
demonstrated the occurrence of bisaccate pollen in micropyles and--------
A) Pollen chamber B)
stigma C) ovary D) both a and b
v The
origin and dirversity of flowering plants can easily understood by studying
their-------
A) Life
cycle B) stem structure C) fossil
history D) all of these
v The --------
plants generally accepted to be angiospermous are known from the early
cretaceous epoch.
A) Oldest
B) earliest C) extinct D) damaged
v A
very few angiosperms------ and------ are found in layers dating to the early
aptian age.
A) Stem,
roots B) leaves, stem C) leaves, flowers D) flowers, stem
v The
earliest fossils of angiosperms are most similar to------- or small herbaceous
plants.
A) Trees
B) large bushes C) small bushes D)
both a and b
v Some
of the oldest and most divers angiosperms floras are found in---------
A) South
Asia B) north America C) Africa D) Australia
v The
most conspicuous feature of angiosperm is----------.
A)
Leaves B) stems C) roots D) flowers
v The
seed ferns are a group of extinct seed plants that-------- the small trees and
bushes with fern like foliage.
A) Different
B) resemble C) connect D) non of
these
v The
most common agent of pollen transfer is----------.
A) Wind B) water flow C)
migration D) all of these
v The
pollen evidence suggest that the Gnetales a modern group of -------- closely
related to angiosperms.
A) Pteridophyta
B) bryophytes C) gymnosperms D) algae
v The
early lines of angiosperm evolution in which the wind may have functioned
in-------.
A) Separation
B) pollination C) both a and b D)
non of these
v -------------
main lines of angiosperm evolution.
A) 2 B) 3 C)
5 D) 10
v In
the first line hypogenous remain--------.
A) Changed
B) unchanged C) extinct D) non of
these
v The
third line shows a few --------- in mono&dicot.
A) Differences
B) resemblances C) may a or may
b D)
non of these
v According
to the Hillier angiosperms originated in the---------.
A) Newzeland B) South
Africa C) America D) south Asia
v According
to------- origin of angiosperm known as abominable mystery.
A) Whitaker
B) Charles Darvin C) Takhtjan D) non of these
v The
things without definite evidences which could help in tracking
probable--------.
A) Algae
B) plants C) ancestors D)
pteridophytes
v The
family--------found in the first line of angiosperm evolution.
A) Ranunculaceae
B) Rosase C) Molvaceae D) non of
these
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