Biology Section 4 Quiz 3

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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:


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