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1 of 20
Which of the following is a colonial form of green algae?
Giardia
Thiobacillus
Volvox
Paramecium
Question
2 of 20
Land was first colonized about ______ years ago.
100 million
500 million
570 million
1.7 billion
Question
3 of 20
In angiosperms, the male gametophyte develops within ______.
male cones
mycelia
filaments
anthers
Question
4 of 20
Under what abiotic conditions can monomers spontaneously form polymers?
When water evaporates from a hot surface
When ribozymes are present to catalyze the reaction
With the addition of water
By biogenesis
Question
5 of 20
Gametophytes reproduce ______.
by fission
by producing sperm and eggs
by alternation of generations
by budding
Question
6 of 20
Under ideal conditions, prokaryotes are capable of reproducing at a(n) ______ rate.
hypergeometric
exponential
infinite
arithmetic
Question
7 of 20
A pollen grain is a ______.
female gametophyte
sporophyte
type of seed
male gametophyte
Question
8 of 20
Where and when does fertilization occur in the mushroom life cycle?
Underground, as a mycelium begins to spread.
On the surface of the ground, when a spore germinates.
In a mushroom, when nuclei of a heterokaryotic cell fuse.
In a mushroom, when sperm and eggs meet.
Question
9 of 20
According to the theory of endosymbiosis, which organelles evolved from small prokaryotes that established residence within other, larger prokaryotes?
Vacuoles and lysosomes
Golgi apparatus and endoplasmic reticulum
Centrioles and ribosomes
Mitochondria and chloroplasts
Question
10 of 20
What global climatic change gave gymnosperms an advantage over ferns?
The climate becoming hotter and wetter
The climate becoming cooler and drier
Increased fluctuations in global climate
The climate becoming cooler and wetter
Question
11 of 20
Which protozoan group consists solely of parasitic forms?
Apicomplexans
Ciliates
Flagellates
Amoebas
Question
12 of 20
An explorer found a plant that had roots, stems, and leaves. It had no flowers but produced seeds. This plant sounds like a(n)
fern.
bryophyte.
angiosperm.
gymnosperm.
Question
13 of 20
Plants first moved onto land at least ______ years ago.
65 million
475 million
1.2 billion
3.5 billion
Question
14 of 20
The prokaryotic group that tends to inhabit extreme environments belongs to the ______.
kingdom Monera
kingdom Protista
domain Archaea
domain Monera
Question
15 of 20
In angiosperms, what structures house female gametophytes?
Ovules
Petals
Stigma
Sepals
Question
16 of 20
Flagellates, amoebas, apicomplexans, and ciliates are all what type of protist?
Slime molds
Protozoans
Diatoms
Dinoflagellates
Question
17 of 20
All prokaryotic and eukaryotic organisms that photosynthesize fit into which nutritional category?
Chemoautotrophs
Photoheterotrophs
Photoautotrophs
Chemoheterotrophs
Question
18 of 20
From the point of view of an angiosperm, what is the function of fruit?
It is where the male gametophyte develops.
It provides structural support for the plant.
It is a mechanism for the dispersal of seeds.
It attracts pollinators.
Question
19 of 20
Whose experiments demonstrated that, given the conditions on the primitive Earth, biological monomers could arise spontaneously?
Miller and Urey
Darwin
Watson
Margulis
Question
20 of 20
Like plants, fungi have ______; however, in plants they are composed of ______, whereas in fungi they are composed of ______.
cell walls; cellulose; chitin
cell walls; cellulose; peptidoglycan
cell membranes; phospholipids; peptidoglycan
cell membranes; cellulose; phospholipids
 
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 ,Biology