BIO 110 EXAM 3

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What is the main difference between amphibians and reptiles? a) Amphibians are tied to water for reproduction, while reptiles have amniotic eggs that can survive on dry land. b) Reptiles are tied to water for reproduction, while amphibians have amniotic eggs that can survive on dry land. c) Neither are tied to water for reproduction.

a) Amphibians are tied to water for reproduction, while reptiles have amniotic eggs that can survive on dry land.

Which of the following choices demonstrates the correct order in which these groups evolved? a) Bryophytes, Seedless vascular plants, Gymnosperms, Angiosperms b) Seedless vascular plants, Bryophytes, Gymnosperms, Angiosperms c) Gymnosperms, Seedless vascular plants, Bryophytes, Gymnosperms

a) Bryophytes, Seedless vascular plants, Gymnosperms, Angiosperms

Mycorrhizae are fungi that are symbiotic with plants. What is the likely relationship between these fungi and plants? a) The fungi provide soil nutrients to the plants; the plants provide food to the fungi. b) The fungi remove bacteria from the soil; the plants provide water to the fungi. c) The fungi remove predators from the plants; the plants provide shelter for the fungi.

a) The fungi provide soil nutrients to the plants; the plants provide food to the fungi.

Which of the following best describes mollusks? a) They are bilaterally symmetrical and have a soft body sometimes covered with a shell. b) They are bilaterally symmetrical and have a soft body always covered with a shell. c) They have radial body symmetry and a soft body sometimes covered with a shell.

a) They are bilaterally symmetrical and have a soft body sometimes covered with a shell.

Based on the endosymbiosis theory that highlights where chloroplasts come from, how would you expect chloroplasts to divide when a plant cell divides? a) binary fission b) meiosis c) Meiosis

a) binary fission

The echinoderms are most closely related to the ________. a) chordates b) mollusks c) arthropods

a) chordates

The xylem primarily transports ________, while the phloem primarily transports ________. a) water and minerals; sugars b) sugars; water and minerals c) water and minerals; oxygen

a) water and minerals; sugars

How many domains contain prokaryotic organisms? a) 1 b) 2 c) 3

b) 2

Which protist group includes members with plantlike traits such as chloroplasts and multicellularity? a) Amoeba b) Algae c) slime molds

b) Algae

You are on a hike with some friends. You come across a plant and observe that it is low-growing to the ground and reproduces by spores. The plant is probably in the plant group _______________. a) Angioperm b) Bryophyta c) Gymnosperm

b) Bryophyta

Which one of the following is a defining characteristic of animals but not of plants? a) Autotrophic b) Heterotrophic c) Eukaryotic

b) Heterotrophic

Which subgroup of mammals raises their young in pouches? a) Eutherians b) Marsupials c) Monotremes

b) Marsupials

Plants possess many compounds that affect animals. What explains these plant characteristics? a) Plants have been subject to mutation-causing pollution for many decades. b) Plants that produced chemical defenses were successful against plant-eating animals. c) Plants contain chloroplasts that are derived from free-living prokaryotes.

b) Plants that produced chemical defenses were successful against plant-eating animals.

Which of the following is an example of a flatworm (phylum Platyhelminthes)? a) Earthworm b) Tapeworm c) Leech

b) Tapeworm

What is the main purpose of flowers? a) To be pleasing to the human eye b) To facilitate pollination c) To attract predators

b) To facilitate pollination

Which feature possessed by most land plants is missing in mosses, which grow low to the ground in damp, shaded areas? a) A protected zygote, so they must grow in damp areas to supply the zygote with moisture. b) Vascular tissue, so they must grow along the ground in damp areas to supply water to the cells. c) Cell walls, so they cannot stand upright.

b) Vascular tissue, so they must grow along the ground in damp areas to supply water to the cells.

How do fungi obtain nutrients? a) through photosynthesis b) by secreting chemicals that break down food and then absorbing it c) by secreting antibiotics and then absorbing killed bacteria

b) by secreting chemicals that break down food and then absorbing it

The exoskeleton of an arthropod is composed largely of the polysaccharide_______________. a) cellulose b) chitin c) peptidoglycan

b) chitin

In the alternation of generations life cycles of plants, the haploid gametophyte produces ______________, while the diploid sporophyte produces_______________. a) haploid gametes; hapoid spores b) haploid gametes; diploid spores c) diploid gametes; haploid spres

b) haploid gametes; diploid spores

What is the botanical definition of a fruit? a) A plant embryo b) A swollen zygote c) A mature ovary

c) A mature ovary

Which of the following is a way in which bacteria help the environment? a) They are used to water in sewage treatment facilities. b) They break down dead organisms in the soil and recycle nutrients. c) All of the above are ways in which bacteria help the environment.

c) All of the above are ways in which bacteria help the environment.

Serial repetition of segments is a defining characteristic of which worm phylum? a) Flatwoms b) Nematodes c) Annelids

c) Annelids

Which of the following choices is mismatched with their evolutionary adaptation? a) Gymnosperms - evolution of seeds b) Angiosperms - evolution of flowers and fruits c) Bryophytes - evolution of vascular tissue

c) Bryophytes - evolution of vascular tissue

What do sponges and cnidarians have in common? a) Organization of cells into tissues b) Symmetry c) None of the above

c) None of the above

What is a major role that fungi play in ecosystems? a) Photosynthesis b) Fixing carbon from the atmosphere c) Recycling nutrients from dead organisms back into the food chain

c) Recycling nutrients from dead organisms back into the food chain

Which statement is true regarding bacteria? a) All bacteria are pathogens and harmful to humans. b) All bacteria are helpful to humans. c) Some bacteria are pathogens and harmful to humans, whereas lots of bacteria are helpful to humans.

c) Some bacteria are pathogens and harmful to humans, whereas lots of bacteria are helpful to humans.

Which organism is considered a sexually transmitted disease? a) Plasmodium falciparum b) Trypanosoma brucei c) Trichomonas vaginalis

c) Trichomonas vaginalis

The evolution of which trait allowed plants to grow taller? a) Photosynthesis b) Seeds c) Vascular tissue

c) Vascular tissue

Which of the following organisms would not be grouped with the protists? a) slime molds b) Plasmodium c) bread mold

c) bread mold

Most chordates are ________. a) invertebrates b) insects c) vertebrates

c) vertebrates


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