Biology Practice test questions & answers(A+
GRADED 100% VERIFIED)
A plant, such as an iris, that reproduces asexually most of the time probably
A) is found in a changing environment.
B) produces offspring that move into new environments.
C) lacks the ability to make flowers.
D) forms spores.
E) has offspring that live in the same environment as the parents. - Correct Answer- E
An oak tree is a
A) sporophyte.
B) gametophyte.
C) gamete.
D) spore.
E) zygote. - Correct Answer- A
8) The sexual life cycle of plants is described as alternation of generations because it
alternates between
A) male plants and female plants.
B) reproductive plants and vegetative plants.
C) eggs and sperm.
D) sporophytes and gametophytes.
E) flowers and spores. - Correct Answer- D
9) The sporophyte produces
A) spores by mitosis.
B) spores by meiosis.
C) gametes by mitosis.
D) gametes by meiosis.
E) gametes by mitosis, followed by meiosi - Correct Answer- d
1) Spores and gametes are both haploid reproductive cells. What is the difference
between the two?
A) Spores germinate and grow into a multicellular haploid gametophyte, and gametes
fuse to form a diploid zygote.
B) Spores fuse to form a diploid zygote that eventually becomes the sporophyte,
gametes.
C) Spores are found only in plants that reproduce asexually, and gametes are found
only in plants that reproduce sexually.
D) Gametes germinate and grow into a multicellular haploid gametophyte, and spores
carry out fertilization. - Correct Answer- c
10) In the alternation of generations, what is formed when a spore germinates?
A) A plant that produces spores when mature.
, B) An increased number of spores.
C) A plant that meiotically produces sex cells.
D) A haploid stage called the gametophyte.
E) A haploid stage called the sporophyte. - Correct Answer- C
13) ________ results in the production of spores in flowering plants.
A) Fertilization
B) Germination
C) Meiosis
D) Spermatogenesis
E) Mitosis - Correct Answer- B
16) In flowering plants, the sperm does not have to swim to the egg. The sperm reaches
the eggs by
A) wind pollination.
B) a pollen tube.
C) burrowing through the embryo sac wall.
D) cell division within the spore case.
E) digestion of the seed coat. - Correct Answer- B
18) A pollen grain is actually the
A) male gametophyte.
B) female gametophyte. - Correct Answer- A
Conifers do not have flowers to attract pollinators. Instead, fertilization occurs
A) via wind pollination.
B) as the sperm and egg unite inside the woody cone.
C) when the endosperm takes the place of the male gametes.
D) when insects coated with pollen are trapped in the sticky resin.
E) when birds transfer pollen in their droppings after eating the pine seeds. - Correct
Answer- A
Grass flowers lack petals and sepals. Which of the following statements is TRUE?
A) These flowers are pollinated at night, so they don't benefit from showy petals or
sepals.
B) They are pollinated by flies, which don't require showy, scented petals.
C) They are imperfect flowers lacking stamen or carpals.
D) They are incomplete flowers lacking one or more floral parts. - Correct Answer- d
Flowers that make pollen, but not ovules, lack
A) petals.
B) sepals.
C) stamens.
D) carpels.
E) filaments. - Correct Answer- D
GRADED 100% VERIFIED)
A plant, such as an iris, that reproduces asexually most of the time probably
A) is found in a changing environment.
B) produces offspring that move into new environments.
C) lacks the ability to make flowers.
D) forms spores.
E) has offspring that live in the same environment as the parents. - Correct Answer- E
An oak tree is a
A) sporophyte.
B) gametophyte.
C) gamete.
D) spore.
E) zygote. - Correct Answer- A
8) The sexual life cycle of plants is described as alternation of generations because it
alternates between
A) male plants and female plants.
B) reproductive plants and vegetative plants.
C) eggs and sperm.
D) sporophytes and gametophytes.
E) flowers and spores. - Correct Answer- D
9) The sporophyte produces
A) spores by mitosis.
B) spores by meiosis.
C) gametes by mitosis.
D) gametes by meiosis.
E) gametes by mitosis, followed by meiosi - Correct Answer- d
1) Spores and gametes are both haploid reproductive cells. What is the difference
between the two?
A) Spores germinate and grow into a multicellular haploid gametophyte, and gametes
fuse to form a diploid zygote.
B) Spores fuse to form a diploid zygote that eventually becomes the sporophyte,
gametes.
C) Spores are found only in plants that reproduce asexually, and gametes are found
only in plants that reproduce sexually.
D) Gametes germinate and grow into a multicellular haploid gametophyte, and spores
carry out fertilization. - Correct Answer- c
10) In the alternation of generations, what is formed when a spore germinates?
A) A plant that produces spores when mature.
, B) An increased number of spores.
C) A plant that meiotically produces sex cells.
D) A haploid stage called the gametophyte.
E) A haploid stage called the sporophyte. - Correct Answer- C
13) ________ results in the production of spores in flowering plants.
A) Fertilization
B) Germination
C) Meiosis
D) Spermatogenesis
E) Mitosis - Correct Answer- B
16) In flowering plants, the sperm does not have to swim to the egg. The sperm reaches
the eggs by
A) wind pollination.
B) a pollen tube.
C) burrowing through the embryo sac wall.
D) cell division within the spore case.
E) digestion of the seed coat. - Correct Answer- B
18) A pollen grain is actually the
A) male gametophyte.
B) female gametophyte. - Correct Answer- A
Conifers do not have flowers to attract pollinators. Instead, fertilization occurs
A) via wind pollination.
B) as the sperm and egg unite inside the woody cone.
C) when the endosperm takes the place of the male gametes.
D) when insects coated with pollen are trapped in the sticky resin.
E) when birds transfer pollen in their droppings after eating the pine seeds. - Correct
Answer- A
Grass flowers lack petals and sepals. Which of the following statements is TRUE?
A) These flowers are pollinated at night, so they don't benefit from showy petals or
sepals.
B) They are pollinated by flies, which don't require showy, scented petals.
C) They are imperfect flowers lacking stamen or carpals.
D) They are incomplete flowers lacking one or more floral parts. - Correct Answer- d
Flowers that make pollen, but not ovules, lack
A) petals.
B) sepals.
C) stamens.
D) carpels.
E) filaments. - Correct Answer- D
