Botany Questions
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24) An incomplete flowerA) lacks one or more of the four basic floral parts.B) remains in the bud stage and does not bloom.C) produces sterile seeds.D) manufactures infertile pollen.E) is incapable of self-fertilization.
All of these flower structures are modified leaves EXCEPTA) petals.B) carpels.C) sepals.D) stamens.E) pollen.
16) In flowering plants, the sperm does not have to swim to the egg. The sperm reaches the eggs byA) 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.
Flowers that make pollen, but not ovules, lackA) petals.B) sepals.C) stamens.D) carpels.E) filaments.
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.
13) ________ results in the production of spores in flowering plants.A) FertilizationB) GerminationC) MeiosisD) SpermatogenesisE) Mitosis
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.
8) The sexual life cycle of plants is described as alternation of generations because it alternates betweenA) male plants and female plants.B) reproductive plants and vegetative plants.C) eggs and sperm.D) sporophytes and gametophytes.E) flowers and spores.
Conifers do not have flowers to attract pollinators. Instead, fertilization occursA) 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.
18) A pollen grain is actually theA) male gametophyte.B) female gametophyte.
An oak tree is aA) sporophyte.B) gametophyte.C) gamete.D) spore.E) zygote.
9) The sporophyte producesA) spores by mitosis.B) spores by meiosis.C) gametes by mitosis.D) gametes by meiosis.E) gametes by mitosis, followed by meiosi
A plant, such as an iris, that reproduces asexually most of the time probablyA) 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.
what is the name of the area of a woody stem where new cells are created to allow the stem to grow in diameter by creating new tree rings
what energy storing substance can be found in the roots of plants between the endodermis and the epidermis
in the male reproductive tract, where are sperm cells created
replication of the DNA of a cell occurs during the prophase stage of mitosis
if you were a plant able to choose your structure what type of leaf would you prefer to have. in very dry/arid enviroment
fertility drugs act to break down feedback loop
which of the following are the green structures at the base of a flower that serve to protect the rest of a flower bud