ULL BIOL 121 (Ch. 6.15-9) EXAM 3 QUESTIONS WITH
COMPLETE SOLUTIONS
___ tissue at the tips of roots and
stems enables a plant to grow in length. This is called _____
_____. Correct Answers Meristem; primary growth
____ are channels from cell to cell (in plants) Correct Answers
plasmodesmata
A ___ consists of an embryo and food
supply inside a protective coating. These are one of the key
adaptations that
allowed plants to spread across the land. Correct Answers seed
A bacteriophage is Correct Answers a virus that infects
bacteria
A generation-to-generation change in the gene pool is called
Correct Answers microevolution
A plasmid is a (what it is, where it is, and what it does) Correct
Answers small, circular DNA molecule that resides in the
cytoplasm of a bacterium. Plasmids can replicate independently
of the bacterial chromosome
A prion is Correct Answers an infectious protein, a misshapen
version of a normal brain protein
Algae (singular, alga) are Correct Answers photosynthetic
protists able to produce their own food from sunlight
,Allopatric speciation may occur when Correct Answers a
physical barrier isolates populations
Amoebas are Correct Answers single-celled protists with great
flexibility in their body form
anatomy of a flower Correct Answers petals, stigma(sticky 2
catch pollen), style, ovary, ovule(future seed), stamen (anther
and filament), and sepals
Angiosperms Correct Answers All flowering plants that
dominate the modern
landscape.
•examples are Grass, asparagus, Coconut palms
Angiosperms are: Correct Answers covered seeds
anther function: Correct Answers In Angiosperm reproduction,
The ___ releases pollen.
Archaea include (3) Correct Answers - methanogens (which
produce methane gas), halophiles (salt lovers), and thermophiles
(heat lovers)
Around ___ years, ancestral plants began to
evolve adaptations
for survival on dry land. Correct Answers 500 MA
Bacteria are important (4) Correct Answers nitrogen-fixers &
decomposers, also sewage treatments & bioremediation
, Bacteria have several mechanisms for transferring DNA
between cells, including (4) Correct Answers Transformation,
Transduction, Conjugation, & Plasmid transfer
Biofilms are Correct Answers organized colonies of one or
several species attached to a surface, such as rocks or living
tissue
blade is the Correct Answers flattened
portion of the leaf.
branching evolution is Correct Answers an ancestral
population splits into two or more populations
Bryophytes Correct Answers ___ are seedless, nonvascular
plants.
• ___ have adaptations for land:
- A waxy outer layer that helps to retain moisture
- Structures that provide internal protection for gametes and
embryos
• They lack seeds and
vascular tissue.
• Modern ___ can
survive only in watery
environment.
example: mosses
bryophytes facts (3) and types (3): Correct Answers -Seedless
nonvascular plants.
-The evolution of a waxy outer layer reduced water loss;
COMPLETE SOLUTIONS
___ tissue at the tips of roots and
stems enables a plant to grow in length. This is called _____
_____. Correct Answers Meristem; primary growth
____ are channels from cell to cell (in plants) Correct Answers
plasmodesmata
A ___ consists of an embryo and food
supply inside a protective coating. These are one of the key
adaptations that
allowed plants to spread across the land. Correct Answers seed
A bacteriophage is Correct Answers a virus that infects
bacteria
A generation-to-generation change in the gene pool is called
Correct Answers microevolution
A plasmid is a (what it is, where it is, and what it does) Correct
Answers small, circular DNA molecule that resides in the
cytoplasm of a bacterium. Plasmids can replicate independently
of the bacterial chromosome
A prion is Correct Answers an infectious protein, a misshapen
version of a normal brain protein
Algae (singular, alga) are Correct Answers photosynthetic
protists able to produce their own food from sunlight
,Allopatric speciation may occur when Correct Answers a
physical barrier isolates populations
Amoebas are Correct Answers single-celled protists with great
flexibility in their body form
anatomy of a flower Correct Answers petals, stigma(sticky 2
catch pollen), style, ovary, ovule(future seed), stamen (anther
and filament), and sepals
Angiosperms Correct Answers All flowering plants that
dominate the modern
landscape.
•examples are Grass, asparagus, Coconut palms
Angiosperms are: Correct Answers covered seeds
anther function: Correct Answers In Angiosperm reproduction,
The ___ releases pollen.
Archaea include (3) Correct Answers - methanogens (which
produce methane gas), halophiles (salt lovers), and thermophiles
(heat lovers)
Around ___ years, ancestral plants began to
evolve adaptations
for survival on dry land. Correct Answers 500 MA
Bacteria are important (4) Correct Answers nitrogen-fixers &
decomposers, also sewage treatments & bioremediation
, Bacteria have several mechanisms for transferring DNA
between cells, including (4) Correct Answers Transformation,
Transduction, Conjugation, & Plasmid transfer
Biofilms are Correct Answers organized colonies of one or
several species attached to a surface, such as rocks or living
tissue
blade is the Correct Answers flattened
portion of the leaf.
branching evolution is Correct Answers an ancestral
population splits into two or more populations
Bryophytes Correct Answers ___ are seedless, nonvascular
plants.
• ___ have adaptations for land:
- A waxy outer layer that helps to retain moisture
- Structures that provide internal protection for gametes and
embryos
• They lack seeds and
vascular tissue.
• Modern ___ can
survive only in watery
environment.
example: mosses
bryophytes facts (3) and types (3): Correct Answers -Seedless
nonvascular plants.
-The evolution of a waxy outer layer reduced water loss;
