Biology Section 4 Quiz 3
archegonium
An organ in lower vascular plants, gymnosperms, mosses, and liverworts which produces an egg cell.
antheridium
An organ in simpler plants that produces sperm cells.
gametangium
An organ of lower plants, some protists and some fungi that produces gametes.
gymnosperms
Cone bearing plants are classified as
gymnosperm
Cone-bearing plant. Often called evergreen.
angiosperms
Plants which produce their gametes in flowers are called:
Sexual reproduction
Three advantages of _______ ___________ are: genetic variations , resistance to unfavorable conditions, and produces disease free seed plants.
cone
A reproductive organ of gymnosperms having a central axis with radiate scales and bracts. A cone can either produce pollen or ovules.
Genetic variation
A species may successfully live in its environment due to:
Genetic recombination
Adaptation is possible due to the known mechanism of:
False
All the gametes of isogamous organisms are genetically identical. True or False?
True
All variations within organisms can be explained by the known principles of genetics. True or False?
conjugation
An act of fertilization involving the transfer of cell contents to another cell. Conjugation usually occurs in simpler organisms.
oogamous
Having gametes of different size and shape. Usually oogamous organisms have eggs and sperm.
gonad
Gamete producing organs in animals
isogamete
Gametes that are the same in size and shape.
immotile
Incapable of independent movement.
flagellum
Long, whip-like structure extending from a cell used for locomotion.
False
Science has documented mechanisms by the scientific method, by which new genes can be acquired during reproduction. True or False?
True
Some plants and animals can reproduce both asexually and sexually. True or False?
isogamy
The condition common to protozoa whereby the cell of the organism acts as a gamete is
oogamy
The condition of being oogamous.
anisogamy
The condition of having anisogametes.
anisogamete
The condition of having gametes similar in shape, but different in size.
Sexual
The fusing together of two gametes at fertilization is called ________ reproduction.
False
The genetic information in a gamete is identical to one of the original separated sets of chromosomes in the parent. True or False?
Genetic information
The genetic requirement for evolution to operate is the acquiring of new _________ ____________ during reproduction.
oogamous
The human gametes are:
stamen
The male organ of plants. It produces pollen.
Genetic variability
The most significant characteristic of sexual reproduction is:
gametangium
The organ which produces gametes in lower plants, some protists, and some fungi is called the
anther
The part of the stamen of a flower that bears the pollen.
Meiosis
Variation produced by sexual reproduction starts during:
Pre-existing
Variations of traits within a population are the result of genetic recombination of ________ genes.
Sexual reproduction
Variations remain within created kinds and all genetic information comes from preexisting genes correspond to:
