OLQ ch 4 50 Questions With Answers| Success Guaranteed|12 Pages
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Course
OLQ
Institution
OLQ
Asexual reproduction is advantageous when
a. the environment is unstable.
b. plants are well adapted to their environment.
c. there are a variety of disease agents in the environment.
d. there is little competition between plants for resources. - ️️B
Cross-pollination
a. occur...
OLQ ch 4 50 Questions With Answers
Asexual reproduction is advantageous when
a. the environment is unstable.
b. plants are well adapted to their environment.
c. there are a variety of disease agents in the environment.
d. there is little competition between plants for resources. - ✔ ✔ B
Cross-pollination
a. occurs only in gymnosperms.
b. tends to increase genetic variation.
c. occurs only in angiosperms.
d. causes the production of sporangia. - ✔ ✔ B
Cross-pollination is beneficial because it
a. produces new genetic variations.
b. is more efficient.
c. produces hybrids of two different species of seed-producing plants.
d. is much quicker than self-pollination. - ✔ ✔ A
Double fertilization has great survival value because
a. two embryos are formed.
b. if one egg dies, the other can live.
, c. it produces very large plants.
d. the embryo has its own temporary source of food. - ✔ ✔ D
During fertilization in flowering plants, one sperm fuses with an egg to form an embryo, and another
fuses with two nuclei to form nutritive tissue. This event is called
a. self-pollination. b. adaptation.
c. maximization. d. double fertilization. - ✔ ✔ D
Fern sporophytes consist of rhizomes and
a. flowers. b. stems.
c. microgametophytes. d. fronds. - ✔ ✔ D
Ferns
a. are found only in the tropics.
b. require water for fertilization to occur.
c. produce diploid spores.
d. have a dominant gametophyte generation. - ✔ ✔ B
Fertilization
a. involves the union of egg and sperm.
b. may not follow pollination at all.
c. may not occur until weeks or months after pollination has taken place.
d. All of the above - ✔ ✔ D
If a plant's flowers are very colorful and produce nectar, the plant is probably pollinated by
a. water. b. wind.
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