Bio 2 week 27-32 chapters
In the process of double fertilization, one sperm fuses with the egg and the other sperm fuses with a spore.
False
Maxillae are used to bite and grind food.
False
Mosses have stems, roots, and leaves.
False
Which of the following is characteristic of flatworms?
They are acoelomate (have no body cavity).
The sac fungi Ascomycetes are characterized by sexual reproductive structures called:
asci
Ascomycetes reproduce sexually by forming
ascospores
The club fungi typically reproduce by producing:
basidiocarps
Lungs first evolved in which group?
bony fishes
Sea stars are primarily:
carnivores
An elongate uniramid with many legs as well as poison claws is known as a(n):
centipede
You find a protist that has a single flagellum surrounded by a collar of microvilli. You correctly conclude that this organism is a(n):
choanoflagellate
Hermaphroditic earthworms reproduce sexually by connecting their bodies by their ____. This allows transfer of ____ from one worm to the other.
clitellum; sperm
Microphylls is a structure that can only be found in:
club mosses
A nauplius larva is characteristic of
crustaceans
Alternation of generations in plants refers to the alternation of
diploid and haploid stages.
In flowering plants, the ____ generation is dominant.
diploid sporophyte
Which of the following animals helps to maintain fertile soil?
earthworms
What is the mode of nutrition for clams and oysters?
filter feeders
One ancestral characteristic remaining in representatives of the Chytridiomycota, and not in any other phyla of fungi, is:
flagellated cells
As a seed develops from an ovule, the ovule wall enlarges and develop into a:
fruit
What are the multicellular sex organs in plants?
gametangia
In which group did the amniotic egg first evolve?
reptiles
Hellbenders are members of the order
Caudata
Which of the following is a characteristic shared between green algae and plants?
Chlorophylls a and b in plastids
A gemma is a sexual reproductive structure produced by certain liverworts.
False
An exoskeleton is a characteristic of an echinoderm
False
Biologists agree that ancestors of ray-finned fishes gave rise to tetrapods.
False
Club mosses belong to the phylum Bryophyta
False
The lowermost and outermost whorl on a floral shoot consists of petals
False
The pollen grains of pine each consists of three cells.
False
Echinoderms are characterized by bilateral symmetry in adults, a water vascular system, tube feet, and spiny skin.
False - radial symmetry in adults
Which of the following is a vascular plant?
Fern
The sori of most ferns are found on which part of the plant?
Fronds
Which of the following phyla is unusual, as it is composed of a single species?
Ginkgophyta
Which is a basic difference between gymnosperms and flowering plants?
Gymnosperms produce seeds borne naked, while flowering plants produce seeds enclosed within a fruit.
Which is a characteristic of tapeworms?
Tapeworms have bodies that consist of hundreds of reproductive segments.
After fertilization in angiosperms, what does the ovule develop into?
Seed
Why are seeds reproductively superior to spores?
Seeds contain a young plant and also are protected by a seed coat.
Yeasts reproduce asexually by:
budding
After embryonic development, members of the phylum Rotifera are incapable of:
cell division
The cell walls of fungi are composed of:
chitin
Sponges are believed to have arisen from the choanoflagellates because they possess:
collar cells
Which arthropod has chelicerae, pedipalps, and silk glands?
spiders
Which of the mollusks have a closed circulatory system?
squids
What specialized structure do crustaceans use to sense gravity?
statocysts
The female gametophyte generation in angiosperms is found in the:
stigma and style of the pistil
What is the mode of nutrition for most Poriferans?
suspension feeders
Malpighian tubules are used for excretion.
True
The phylum name Arthropoda refers to:
jointed appendages
Most fungal spores are ____ reproductive cells that are produced ____.
nonmotile; sexually or asexually
The anterior end of a tapeworm is known as the:
scolex
Within the phylum Cnidaria, corals are most closely related to which organism?
sea anemones
Which is critical to polychaete and oligochaete locomotion?
setae
Echinoderms are unique because:
their larvae are bilaterally symmetrical while the adult is pentaradially symmetrical
The ____ are very common arthropod Paleozoic fossils, and are extinct today.
trilobites
Refer to the accompanying figure. Which label denotes the nerve cord?
5
In the accompanying figure, which label designates the structures largely responsible for attracting potential pollinators?
8
As bilateral symmetry evolved, natural selection led to which of the following?
Abiogenesis
The coelacanth is found in the class:
Actinistia
Which of the following characteristics about animals is FALSE?
Animals cannot respond to stimuli.
Which statement about mycorrhizae is FALSE?
Arbuscular mycorrhizae are extracellular.
Which of the following statements about arthropods is FALSE?
Arthropods have an incomplete digestive tract.
The most prevalent groups of fungi are:
Ascomycota and Basidiomycota
Which statement about bilateral symmetry is FALSE?
Bilateral symmetry evolved in cnidarians.
Members of the phylum ____ are the simplest organisms with a separate mouth and anus.
Ctenophora
Movable spines are found on ____ of the phylum Echinodermata.
Echinoidea
Which class of animals has the largest number of species?
Insecta
Which statement best describes a lophophore?
It is a ciliated ring of tentacles surrounding the mouth
Which statement best describes a lophophore?
It is a ciliated ring of tentacles surrounding the mouth.
Which is a differentiating characteristic of land plants from green algae?
Land plants have a waxy cuticle.
What do the large female cones of a pine tree contain?
Megasporangia
____ are small leaves with a single vascular strand.
Microphylls
Which phylum does the life cycle in the accompanying figure represent?
Phylum Ascomycota
Which was the primary challenge animals faced in adapting to life on land?
The desiccating effect of the atmosphere
How do leeches differ from other annelids?
They do not have setae or parapodia.
Why are mosses and liverworts limited in size?
They lack vascular tissues.
An example of an animal that is a metazoan is a sponge.
True
Animals share a common origin with choanoflagellates.
True
Members of phylum Arthropoda have paired, jointed appendages.
True
Members of the Ecdysozoa clade are characterized by having a cuticle.
True
One member of subphylum Chelicerata is a spider.
True
How is the pollen of pine trees primarily disseminated? Birds
Wind
I am characterized by having a test and axopods. Who am I?
actinopods
The most diverse, successful, and familiar group of plants today are the:
angiosperms
The head end of an animal is known as its:
anterior end
What is the male sexual structure that produces sperm in plants?
antheridium
As adults, ____ are the only sessile crustaceans whose external anatomy is completely different than its fellow crustaceans.
barnacles
Which is an example of a member of phylum Zygomycota?
black bread mold
A nauplius larva is characteristic of:
crustaceans
Biramous appendages in arthropods are only present in which organism?
crustaceans
Which arthropods have mandibles, gills, excretory glands, and statocysts?
crustaceans
Diploblastic animals, such as cnidarians and ____, have only two germ layers, ectoderm and ____.
ctenophores; endoderm
The ____ of an earthworm allows them to resist desiccation in terrestrial environments.
cuticle
Like the cnidarians, flatworms depend on ____ for achieving circulation and gas exchange.
diffusion
Xylem is a vascular tissue that conducts dissolved sugars.
false
Refer to the accompanying figure. What is the structure labeled as 9?
feeding polyp
Some liverworts reproduce asexually by forming tiny balls of tissue called:
gemmae
Members of the ____ are thought to have given rise to plants.
green algae
The ____ generation is dominant in mosses, as it can live independently.
haploid gametophyte
One characteristic of the class Holothuroidea is that they:
have movable spines that are used to facilitate locomotion.
Black bread mold is ____, which means that it can't self-fertilize
heterothallic
Many seedless plants produce spores of one morphological type, which is referred to as:
homospory
The Portuguese man-of-war is a colony of hundreds to thousands of:
hydrozoans
A ____ is a filament that makes up the vegetative body of most fungi.
hypha
All echinoderms are found:
in marine habitats.
A flower that has sepals, petals, and stamens, but lacks carpels, is known as:
incomplete and imperfect.
Where does digestion in a sponge takes place?
individual cells
The body wall of cnidarians and ctenophores consist of:
inner and outer cell layers separated by a jelly-like mesoglea
Which of the following species has been used for centuries to draw blood from areas swollen by poisonous stings and bites?
leeches
Reduction in ____ growth is used as a sensitive indicator of air pollution.
lichen
Pseudopodia are used by Amoeba for ingesting food as well as for:
locomotion
Segmentation is important in annelids as an aid in:
locomotion
Most mollusks are:
marine
The ____ gives rise to muscles, bones, and the circulatory system
mesoderm
The veliger larval form is unique to:
molluscs
A plant with parallel veins and floral parts in threes or multiples of three would be classified as a:
monocot
Most conifers have separate male and female reproductive parts on the same tree. This condition is referred to as:
monoecious
Segmentation in arthropods differs from that of annelids because arthropod segments are:
more specialized
In most protostomes, the blastopore develops into the:
mouth
Most reptiles are ____ and their fertilization is ____.
oviparous; internal
The larvae of some cnidarians are known as ____ larvae.
planula
Which process marks the start of the dikaryotic stage (n + n) in the fungal reproductive cycle?
plasmogamy
One characteristic of class Bivalvia is that they:
possess two shells with a hinge
The gametophyte generation of ferns is the:
prothallus
Deuterostomes are characterized by ____ and ____ cleavage.
radial; indeterminate
Which structure do numerous mollusks use to scrape algae off rocks?
radula
Which of the following is an adaptation that enables cephalopods to escape from their predators?
rapidly changing colors
Angiosperms have ____ in their phloem.
sieve tube elements
Most arachnids have ____ pair(s) of jointed appendages.
six
The intermediate host for a blood fluke is a:
snail
Ctenophores capture food:
using adhesive glue cells that trap prey
The most unique feature of the echinoderms is their:
water vascular system.
Which is a unique adaptation in insects not found in any other arthropod?
wings
Which unicellular fungus is probably in most kitchens?
yeast