ehd123

At the start of the breeding season, male stickleback fish undergo a number of significant changes. ...

At the start of the breeding season, male stickleback fish undergo a number of significant changes. ...

At the start of the breeding season, male stickleback fish undergo a number of significant changes. Their bellies become bright red and they become aggressive toward other males of the species, establishing and defending territories in which they bui

tyressjones   98   2 Replies

tyressjones

In a classic experiment from the 1930s, a biologist conducted selective breeding experiments ...

In a classic experiment from the 1930s, a biologist conducted selective breeding experiments ...

In a classic experiment from the 1930s, a biologist conducted selective breeding experiments involving maze-running behavior in rats. He repeatedly bred together males and females that made the fewest mistakes, and he also bred together males and fem

tyressjones   49   2 Replies

tyressjones

Normal fruit fly larvae move away from their food after eating. However, some larvae that were ...

Normal fruit fly larvae move away from their food after eating. However, some larvae that were ...

Normal fruit fly larvae move away from their food after eating. However, some larvae that were subjected to X-rays remain near or in their food after eating. There is a consistent difference in the DNA of these two types of larvae. What can we conclu

tyressjones   44   2 Replies

tyressjones

In human infants, smiling is a(n) ________ behavior.

In human infants, smiling is a(n) ________ behavior.

In human infants, smiling is a(n) ________ behavior.

tyressjones   48   2 Replies

tyressjones

The ability to make changes in behavior based on experience is called ________.

The ability to make changes in behavior based on experience is called ________.

The ability to make changes in behavior based on experience is called ________.

tyressjones   55   2 Replies

tyressjones

Animals use ________ learning when they figure out how to solve a problem without prior experience ...

Animals use ________ learning when they figure out how to solve a problem without prior experience ...

Animals use ________ learning when they figure out how to solve a problem without prior experience with that problem.

tyressjones   48   2 Replies

tyressjones

A child touches a hot pot on a stove, burns his finger, and won't touch another pot. This is an ...

A child touches a hot pot on a stove, burns his finger, and won't touch another pot. This is an ...

A child touches a hot pot on a stove, burns his finger, and won't touch another pot. This is an example of ________ learning.

tyressjones   57   2 Replies

tyressjones

Living in a social group increases the risk of contracting an infectious disease. True or False?

Living in a social group increases the risk of contracting an infectious disease. True or False?

Living in a social group increases the risk of contracting an infectious disease. True or False?

tyressjones   47   2 Replies

tyressjones

Play inhibits normal behavioral development. True or False?

Play inhibits normal behavioral development. True or False?

Play inhibits normal behavioral development. True or False?

tyressjones   79   2 Replies

tyressjones

Only primates play. True or False?

Only primates play. True or False?

Only primates play. True or False?

tyressjones   65   2 Replies

tyressjones

A female dog in estrus attracts males with pheromones. True or False?

A female dog in estrus attracts males with pheromones. True or False?

A female dog in estrus attracts males with pheromones. True or False?

tyressjones   84   2 Replies

tyressjones

Territoriality increases aggression. True or False?

Territoriality increases aggression. True or False?

Territoriality increases aggression. True or False?

tyressjones   52   2 Replies

tyressjones

Pheromones are species specific. True or False?

Pheromones are species specific. True or False?

Pheromones are species specific. True or False?

tyressjones   50   2 Replies

tyressjones

A clam is a(n)A) arthropod.B) mollusk.C) chordate.D) echinoderm.E) arachnid.

A clam is a(n)A) arthropod.B) mollusk.C) chordate.D) echinoderm.E) arachnid.

A clam is a(n)
A) arthropod.
B) mollusk.
C) chordate.
D) echinoderm.
E) arachnid.

tyressjones   46   2 Replies

tyressjones

The tube feet of echinoderms that are used for locomotion, capturing prey, and gas exchange are ...

The tube feet of echinoderms that are used for locomotion, capturing prey, and gas exchange are ...

The tube feet of echinoderms that are used for locomotion, capturing prey, and gas exchange are "inflated" by the ________, which is unique to the echinoderms.
A) coelom
B) hydrostatic skeleton
C) tubular gut
D) water-va

tyressjones   55   2 Replies

tyressjones

A hemocoel or blood cavity is found in or associated withA) all animals.B) an open circulatory ...

A hemocoel or blood cavity is found in or associated withA) all animals.B) an open circulatory ...

A hemocoel or blood cavity is found in or associated with
A) all animals.
B) an open circulatory system.
C) sponges.
D) cephalopods.
E) acoelomates.

tyressjones   46   2 Replies

tyressjones

Within the mollusks, only the cephalopods have aA) closed circulatory system.B) tubular gut.C) ...

Within the mollusks, only the cephalopods have aA) closed circulatory system.B) tubular gut.C) ...

Within the mollusks, only the cephalopods have a
A) closed circulatory system.
B) tubular gut.
C) coelom.
D) hinged shell.
E) radula.

tyressjones   49   2 Replies

tyressjones

The animals most like the ancestral protist colonies that likely gave rise to all animals areA) ...

The animals most like the ancestral protist colonies that likely gave rise to all animals areA) ...

The animals most like the ancestral protist colonies that likely gave rise to all animals are
A) chordates.
B) arthropods.
C) sponges.
D) echinoderms.
E) nematodes.

tyressjones   39   2 Replies

tyressjones

The taxonomic group that contains the most species and seemingly most intelligent invertebrates isA) ...

The taxonomic group that contains the most species and seemingly most intelligent invertebrates isA) ...

The taxonomic group that contains the most species and seemingly most intelligent invertebrates is
A) Cephalopoda.
B) Gastropoda.
C) Chordata.
D) Aves.
E) Uniramia.

tyressjones   32   2 Replies

tyressjones

Which of the following animals uses a radula to scrape food into its mouth?A) OctopusB) StarfishC) ...

Which of the following animals uses a radula to scrape food into its mouth?A) OctopusB) StarfishC) ...

Which of the following animals uses a radula to scrape food into its mouth?
A) Octopus
B) Starfish
C) Scallop
D) Rat
E) Snail

tyressjones   29   2 Replies

tyressjones

Which of the following animals are arachnids?A) SpidersB) WaspsC) GrasshoppersD) FlukesE) Beetles

Which of the following animals are arachnids?A) SpidersB) WaspsC) GrasshoppersD) FlukesE) Beetles

Which of the following animals are arachnids?
A) Spiders
B) Wasps
C) Grasshoppers
D) Flukes
E) Beetles

tyressjones   44   2 Replies

tyressjones

Which invertebrate animal group is characterized by having a closed circulatory system?A) ...

Which invertebrate animal group is characterized by having a closed circulatory system?A) ...

Which invertebrate animal group is characterized by having a closed circulatory system?
A) Platyhelminthes
B) Nematoda
C) Annelida
D) Echinodermata
E) Arthropoda

tyressjones   41   2 Replies

tyressjones

The phylum Nematoda includes which of the following very common organisms, some of which are ...

The phylum Nematoda includes which of the following very common organisms, some of which are ...

The phylum Nematoda includes which of the following very common organisms, some of which are parasitic and most of which are often found in soil?
A) Segmented worms
B) Roundworms
C) Flatworms
D) Earthworms
E) Tapeworms

tyressjones   53   2 Replies

tyressjones

What causes schistosomiasis, a devastating disease that affects about 200 million people in tropical ...

What causes schistosomiasis, a devastating disease that affects about 200 million people in tropical ...

What causes schistosomiasis, a devastating disease that affects about 200 million people in tropical regions?
A) Nematodes
B) Parasitic flatworms called blood flukes
C) Echinoderms
D) Trichinella
E) Amoebas

tyressjones   41   2 Replies

tyressjones

A cnidarian that builds a calcium carbonate skeleton is a(n)A) oyster.B) clam.C) snail.D) coral.E) ...

A cnidarian that builds a calcium carbonate skeleton is a(n)A) oyster.B) clam.C) snail.D) coral.E) ...

A cnidarian that builds a calcium carbonate skeleton is a(n)
A) oyster.
B) clam.
C) snail.
D) coral.
E) crab.

tyressjones   52   2 Replies

tyressjones

Which cnidarian is the basis of an undersea habitat?A) Sea cucumberB) HydraC) AnemoneD) JellyfishE) ...

Which cnidarian is the basis of an undersea habitat?A) Sea cucumberB) HydraC) AnemoneD) JellyfishE) ...

Which cnidarian is the basis of an undersea habitat?
A) Sea cucumber
B) Hydra
C) Anemone
D) Jellyfish
E) Coral

tyressjones   33   2 Replies

tyressjones

Sponges haveA) a gastrovascular cavity.B) spicules.C) a nerve net.D) muscles.E) an exoskeleton.

Sponges haveA) a gastrovascular cavity.B) spicules.C) a nerve net.D) muscles.E) an exoskeleton.

Sponges have
A) a gastrovascular cavity.
B) spicules.
C) a nerve net.
D) muscles.
E) an exoskeleton.

tyressjones   32   2 Replies

tyressjones

Giant squids are classified asA) arthropods.B) mollusks.C) echinoderms.D) chordates.E) ...

Giant squids are classified asA) arthropods.B) mollusks.C) echinoderms.D) chordates.E) ...

Giant squids are classified as
A) arthropods.
B) mollusks.
C) echinoderms.
D) chordates.
E) platyhelminthes.

tyressjones   65   2 Replies

tyressjones

Which of these groups is characterized by having a true coelom?A) SpongesB) CnidariansC) ...

Which of these groups is characterized by having a true coelom?A) SpongesB) CnidariansC) ...

Which of these groups is characterized by having a true coelom?
A) Sponges
B) Cnidarians
C) Arthropods
D) Flatworms
E) Roundworms

tyressjones   47   2 Replies

tyressjones

________ are characterized by having a pseudocoelom.A) RoundwormsB) AnnelidsC) ArthropodsD) ...

________ are characterized by having a pseudocoelom.A) RoundwormsB) AnnelidsC) ArthropodsD) ...

________ are characterized by having a pseudocoelom.
A) Roundworms
B) Annelids
C) Arthropods
D) Chordates
E) Cnidarians

tyressjones   29   2 Replies

tyressjones

EcdysozoansA) have trochophore larva.B) include mollusks, annelids, and flatworms.C) have a special ...

EcdysozoansA) have trochophore larva.B) include mollusks, annelids, and flatworms.C) have a special ...

Ecdysozoans
A) have trochophore larva.
B) include mollusks, annelids, and flatworms.
C) have a special feeding structure.
D) have a body cavity that forms from the digestive system.
E) periodically shed their outer body cover

tyressjones   36   2 Replies

tyressjones

Which of the following characteristics is often associated with animals that are radially ...

Which of the following characteristics is often associated with animals that are radially ...

Which of the following characteristics is often associated with animals that are radially symmetrical?
A) Mobility
B) Gastrovascular cavity
C) Sessile or otherwise nonmobile
D) Mesoderm
E) Cephalization

tyressjones   38   2 Replies

tyressjones

Which of the following characteristics is associated with all animals that are bilaterally ...

Which of the following characteristics is associated with all animals that are bilaterally ...

Which of the following characteristics is associated with all animals that are bilaterally symmetrical at some point in their life cycle?
A) Lack of organs
B) Gastrovascular cavity
C) Coelom
D) Mesoderm
E) Cephalization

tyressjones   42   2 Replies

tyressjones

Which plant hormone is responsible for apical dominance?A) auxinB) ethyleneC) cytokininD) ...

Which plant hormone is responsible for apical dominance?A) auxinB) ethyleneC) cytokininD) ...

Which plant hormone is responsible for apical dominance?
A) auxin
B) ethylene
C) cytokinin
D) gibberellin

chezmoi   56   2 Replies

chezmoi

What is the purpose of plant hormones?A) They are produced in small amounts but have great ...

What is the purpose of plant hormones?A) They are produced in small amounts but have great ...

What is the purpose of plant hormones?
A) They are produced in small amounts but have great effects.
B) They break down quickly after they are produced.
C) They act only at the location where they are produced.
D) They generally h

chezmoi   63   2 Replies

chezmoi

What is the tendency of a plant's uppermost bud to limit the growth of lower buds? (two words)

What is the tendency of a plant's uppermost bud to limit the growth of lower buds? (two words)

What is the tendency of a plant's uppermost bud to limit the growth of lower buds? (two words)

chezmoi   42   2 Replies

chezmoi

A greenhouse manager wants to encourage long-term, productive flowering instead of short-term, rapid ...

A greenhouse manager wants to encourage long-term, productive flowering instead of short-term, rapid ...

A greenhouse manager wants to encourage long-term, productive flowering instead of short-term, rapid flowering in annual garden plants that are for sale. Which action would accomplish that goal?
A) pruning away early flowers
B) limiting wat

chezmoi   89   2 Replies

chezmoi

What is the response of a plant to the proportion of light and dark in a day?

What is the response of a plant to the proportion of light and dark in a day?

What is the response of a plant to the proportion of light and dark in a day?

chezmoi   44   2 Replies

chezmoi

Which chemical is photosensitive and allows plants to "measure" day length?A) abscisic ...

Which chemical is photosensitive and allows plants to "measure" day length?A) abscisic ...

Which chemical is photosensitive and allows plants to "measure" day length?
A) abscisic acid
B) malic acid
C) cytokinin
D) phytochrome

chezmoi   74   2 Replies

chezmoi

What type of plants flower only if day length is less than a critical value?A) short-day plantsB) ...

What type of plants flower only if day length is less than a critical value?A) short-day plantsB) ...

What type of plants flower only if day length is less than a critical value?
A) short-day plants
B) long-day plants
C) biennial plants
D) perennial plants

chezmoi   75   2 Replies

chezmoi