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1. GS102 Introduction to Life Science (01-MAR-17 – 25-APR-17 [9360])
2. Week 7 “Ecology and Ecosystems”
3. Take Test: W7 Quiz

Take Test: W7 Quiz

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 Test Information

Instructions

Description Instructions Multiple AttemptsNot allowed. This test can only be taken once.Force CompletionThis test can be saved and resumed later.

Question 1

1. Fungi exhibit certain characteristics. One of these characteristics is that they

   A.

   are capable of carrying on photosynthesis.

   B.

   reproduce using seeds and pollen.

   C.

   are prokaryotes.

   D.

   reproduce using spores.

   E.

   lack cell nuclei.

5 points   

Question 2

1. Which of the following are adaptations to land of both gymnosperms and angiosperms but are lacking in ferns and mosses?

   A.

   spores

   B.

   roots, stems, and leaves

   C.

   pollen and seeds

   D.

   fruits and flowers

   E.

   vascular system

5 points   

Question 3

1. The segmented worms of the phylum Annelida

   A.

   move by use of flagella.

   B.

   display radial symmetry.

   C.

   possess setae on each segment.

   D.

   are acoelomate.

   E.

   have an open circulatory system.

5 points   

Question 4

1. Green algae such as Ulva demonstrate an alteration of generations. The diploid phase is called the

   A.

   zygote.

   B.

   gametophyte generation.

   C.

   sporophyte generation.

   D.

   diploid generation.

   E.

   embryo.

5 points   

Question 5

1. In general, mammals are not good at dispersing chili plant seeds because

   A.

   the mammals do not travel very far before they release the chili seeds.

   B.

   the seeds die as they pass through the digestive tract.

   C.

   the chili seeds do not stick to the mammals’ fur.

   D.

   chili seeds are dispersed mainly by the wind.

   E.

   the mammals are the main pollinators for the chili plant.

5 points   

Question 6

1. In cnidarians, nematocysts are important in

   A.

   obtaining oxygen from the water.

   B.

   food digestion.

   C.

   obtaining prey.

   D.

   excretion of wastes.

   E.

   movement.

5 points   

Question 7

1. It is generally thought that animals have undergone four major physiological and anatomical innovations during their evolution. These are (in no particular order)

   A.

   multicellularity, bilateral symmetry, origin of patterns of embryonic development, development of tissues.

   B.

   development of the versatile forelimb, multicellularity, origin of patterns of embryonic development, development of tissues.

   C.

   bilateral symmetry, development of tissues, origin of the multichambered heart, origin of patterns of embryonic development.

   D.

   origin of patterns of embryonic development, development of the versatile forelimb, origin of the multichambered heart, multicellularity.

   E.

   development of tissues, photosynthesis, bilateral symmetry, multicellularity.

5 points   

Question 8

1. Which of the following adaptations to life on land is found in both insects and modern reptiles?

   A.

   metamorphosis from a larval form

   B.

   two pairs of walking legs

   C.

   body surfaces that resist evaporation

   D.

   ability to fly

   E.

   tracheae to distribute oxygen

5 points   

Question 9

1. Which of the following is not a characteristic differentiating Neanderthals from modern humans?

   A.

   Neanderthals were stronger.

   B.

   Neanderthals had smaller brains.

   C.

   Neanderthals had larger noses.

   D.

   Neanderthals were shorter.

   E.

   Neanderthals had projecting brow ridges.

5 points   

Question 10

1. All members of the phylum Chordata share

   A.

   exoskeletons.

   B.

   a notochord present sometime in their lives.

   C.

   tails present throughout their lives.

   D.

   gills present throughout their lives.

   E.

   a vertebral column.

5 points   

Question 11

1. It is generally thought that four critical innovations arose during the evolution of our ape-like ancestors into humans. All of the following are innovations except

   A.

   use of brain power for abstract thought.

   B.

   development of the opposable thumb.

   C.

   bipedalism.

   D.

   toolmaking.

   E.

   expansion of the human brain.

5 points   

Question 12

1. This characteristic allows fungi to withstand heat and drought conditions.

   A.

   specialized organelles

   B.

   hyphae

   C.

   mycelia

   D.

   cell walls

   E.

   spores

5 points   

Question 13

1. Plants have adapted to dry land by evolving all of the following except

   A.

   secreting a waxy coating to prevent water loss.

   B.

   structures to protect reproductive cells and embryos.

   C.

   tissues to conduct water through the plant.

   D.

   forms of chlorophyll more efficient at capturing light.

   E.

   association with mycorrhizae to improve mineral uptake.

5 points   

Question 14

1. Lichens are

   A.

   only found growing on living matter.

   B.

   symbiotic associations between a fungus and an alga.

   C.

   parasitic interactions between a fungus and an alga.

   D.

   insensitive to changes in the environment.

   E.

   capable of causing some obscure diseases.

5 points   

Question 15

1. In bryophytes, the rhizoids

   A.

   obtain nutrients.

   B.

   serve as attachment structures.

   C.

   lure possible prey.

   D.

   obtain water.

   E.

   are involved in reproduction.

5 points   

Question 16

1. All of the following are parts of a flower except the

   A.

   ovary.

   B.

   cuticle.

   C.

   stamen.

   D.

   carpel.

   E.

   fruit.

5 points   

Question 17

1. Which of the following characteristics is not shared by typical birds and mammals?

   A.

   four-chambered heart

   B.

   four limbs

   C.

   milk production

   D.

   insulating skin structures

   E.

   endothermy

5 points   

Question 18

1. Cnidarians and ctenophores are similar in that they both have

   A.

   nematocysts.

   B.

   radial symmetry.

   C.

   mesoderm.

   D.

   a pseudocoel.

   E.

   a digestive tract with two openings.

5 points   

Question 19

1. Mammals have two traits that set them apart from all other animals. These are

   A.

   amniotic eggs and milk production.

   B.

   four-chambered heart and body hair or fur.

   C.

   four-chambered heart and milk production.

   D.

   body hair or fur, and milk production.

   E.

   body hair or fur, and being homeothermic.

5 points   

Question 20

1. In plants, the secondary metabolites are primarily responsible for

   A.

   protection against ultraviolet radiation.

   B.

   food gathering.

   C.

   defense.

   D.

   overcoming air pollutants.

   E.

   nutrition.

5 points   

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