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Flashcards in quiz Deck (43):
1

true or false?
unlike most other species of plant, bryophytes can close their stomata when water stressed?

false

2

the gametophyte generation of a moss ___

is haploid

3

which of the following is not true regarding the plant kingdom?

plants store their photosynthetic product as amino acids

4

land plants are though to be closely related to

charophytes

5

the _____ is the haploid generation in a plant life cycle and produces ____. the _____ is the diploid generation of a plant life cycle and produces _____

gametophyte; haploid gametes; sporophyte; haploid spores

6

which of the following is NOT common to all phyla of vascular plants?

the development of seeds

7

which of these groups of plants should have gene sequences that are most similar to the ancestor of land plants?

early bryophytes

8

the result of heterospory is

the existence of male and female gametophytes

9

the seed coats most important function is

to provide desiccation resistance

10

true or false?
all chordates have a vertebrate column

false

11

a terrestrial mollusk without a shell belongs to which class?

gastropods

12

what are characteristics of arthropods?

protostome development, bilateral symmetry, and three embryonic germ layers

13

in addition to chordates, which of the following are also deuterostomes?

echinoderms

14

ecdysis mean to

shed your skin

15

lichens are a composite organism comprised usually of a algal symbiont and a ____ fungus

ascomycota

16

which of the following fungal taxa forms arbuscules?

glomeromycota

17

which of the following taxa possesses the most body segments

chilopoda

18

which of the following is not true regarding nematodes?

their coelomic cavity is divided

19

members of the diplopoda are ecdysozoans, eucloemates and protostomate animals?

true

20

coral is included in class____

anthozoa

21

which of the following statements regarding animal embryological development is true?

only animals form an embryonic blastula

22

the most recent common ancestor of animals is

choanoflagellate protist

23

which of the following is unique to animals

gastrulation

24

which of the following is descriptive of protostomes?

spiral and determinate cleavage; blastopore becomes mouth

25

you are trying to identify an organism. it is an animal but it is neither diploblastic or triploblastic. it is most likely a

sponge

26

what is one characteristic that separates chordates from all other animals?

dorsal, hollow nerve cord

27

what is a distinctive feature of the Chondrichthyes?

a mostly cartilaginous skeleton

28

unlike eutherian, both monotremes and marsupials ____

have some embryonic development outside the mothers uterus

29

which of the following levels of organization is arranged in the correct sequence from most to least inclusive (broadest to most specific)?

ecosystem, community, population, individual

30

which of the following are important biotic factors?

predation, competition

31

which of the following is a good description of an ecological niche?

how an organism uses the biotic and abiotic resources in the community

32

the species richness of a community refers to

the number of different species

33

a very tasty butterfly evolved to have the same coloration of a butterfly that is not closely related but has high concentrations of extremely toxic compounds in its wings. this is an example of

batesian mimicry

34

the logistic growth model differs from the exponential growth model in that it

expresses the effects of population-limiting factors on exponential growth

35

an oak tree produces thousands of acorns, but very few grown into mature oak trees, this is a ____ curve

type III

36

a biologist is trying to figure out what will happen to a bear population if bear hunting is banned. he had the equations all worked out but then realized he had underestimated that amount of food available to bears. to make his prediction more accurate he should ______ the value of _____ in his equation

increase; K

37

organisms that live in a homogenous abiotic environment and cooperate to avoid being eaten likely show a _____ pattern of dispersal

clumped

38

a variety of opossum that lives in an island with no predators lives much longer than its relatives on the mainland, even when both are kept safely in a zoo. the island variants genes have been selected from slow aging whereas the mainland variants genes have been selected for quick reproduction. the island opossum exhibits _____ selection and the mainland opossum exhibits _____ selection

K; r

39

the biggest difference between flow of energy and the flow of chemical nutrients is that

nutrients are recycled, energy is not

40

the logistic growth model differs from the exponential growth model in that

the logistic growth model expresses the effects of population limiting factors on exponential growth

41

what is the nutrient rich blood called in an open circulatory system

hemolymph

42

humans are

chemoheterotrophs

43

the most diverse and numerous animals are

arthropoda (spiders, crabs, insects)