BIO 142-01 EXAM 1

Question 1

to move up a plant, water moves down the water-potential gradient that exists between the soil, tissues, and atmosphere

Accepted Answer

True

Question 2

which tissue system in plants consist of the parenchyma cells, collenchyma cells, and sclerenchyma cells

Accepted Answer

ground tissue system

Question 3

Imperfect flowers have both stamens and carpels

Accepted Answer

False

Question 4

shared traits, but not shared ancestry

Accepted Answer

homoplasy

Question 5

a modified stem that produces new individuals at nodes belowground and store carbohydrates

Accepted Answer

rhizomes

Question 6

Name the process by which water is drawn through the xylem from the roots to the leaves

Accepted Answer

transpiration

Question 7

evolutionarily independent lineages are classified by different morphological features...which species concept?

Accepted Answer

morphospecies

Question 8

Mobile nutrients are

Accepted Answer

•Transported to younger leaves from older leaves

Question 9

which statement best characterizes primary growth

Accepted Answer

it produces the dermal, ground and vascular tissues

Question 10

What are essential nutrients (2 answers)?

Accepted Answer

nutrients that cannot be synthesized by the organism, nutrients required for growth and reproduction

Question 11

bacteria that produce ammonia from nitrogen gas are

Accepted Answer

mutualistic w legumes

Question 12

This type of reproductive isolation prevents individuals of different species from mating successfully

Accepted Answer

prezygotic

Question 13

Transpiration occurs when (2 answers)

Accepted Answer

stomata are open, air surrounding leaves is drier than air inside of leaves

Question 14

soils with low pH

Accepted Answer

are acidic

Question 15

If soil water potential is low enough, water may move from roots to the soil. This is deadly for plant.

Accepted Answer

True

Question 16

when a single lineage rapidly produces many descendant species with a wide range of adaptive forms

Accepted Answer

adaptive radiation

Question 17

During the growing season, which part of the plant acts as a source

Accepted Answer

mature leaves and stems

Question 18

______are formed by pairs of guard cells that open and close to control carbon dioxide uptake and water loss by leaves

Accepted Answer

stomata

Question 19

the tissue system where photosynthesis and carbohydrate storage happen

Accepted Answer

ground

Question 20

what distinguishes a morphospecies?

Accepted Answer

it has distinctive characteristics such as size shape or coloration

Question 21

Which sp concept defines a species by whether or not mating produces viable, fertile offspring

Accepted Answer

biological species concept

Question 22

Very large dogs and very small dogs cannot mate due to the incompatible sizes...repro isolation?

Accepted Answer

prezygotic: mechanical

Question 23

Structure of the flower that makes up the outermost part, usually green and photosynthetic

Accepted Answer

sepal

Question 24

a monoecious plant

Accepted Answer

is hermaphroditic

Question 25

short-term environmental catastrophes that eliminate most of the species alive

Accepted Answer

mass extinction

Question 26

Warm, dry air has

Accepted Answer

low water potential

Question 27

Plants that do not absorb nutrients from soil or another host plant are

Accepted Answer

epiphytic

Question 28

if the solute potential inside the cell and its surrounding solution are the same, there is no net movement of water

Accepted Answer

True

Question 29

which statement best characterizes secondary growth

Accepted Answer

it results from cell divisions in the vascular and cork cambia

Question 30

a cell is placed in a solution that is hypotonic to the cell. which best describes the movement of water in this sit

Accepted Answer

water will flow into and out of the cell but net mvmt in

Question 31

The net movement of water is always from areas of

Accepted Answer

higher water potential to areas of lower water potential

Question 32

sugar beets store carbohydrates and other nutrients in their taproot for future use....they are

Accepted Answer

storage roots

Question 33

The cell on the right has a higher solute potential than its solution.

Accepted Answer

False

Question 34

speciation is

Accepted Answer

the formation of two or more species from an ancestral species

Question 35

when it is cool and rainy, the water potential of the atmosphere is

Accepted Answer

high

Question 36

tissue system that Transports water, nutrients, products of photosynthesis

Accepted Answer

vascular

Question 37

what are the disadvantages of the phylogenetic species concept

Accepted Answer

there are few well-estimated phylogenies currently available

Question 38

the independent evolution of similar traits in distantly related organisms due to adaptation to similar environments

Accepted Answer

convergent evolution

Question 39

a node that depicts an ancestral branch dividing into three or more descendants

Accepted Answer

polytomy

Question 40

a sister group that shares a recent common ancestor with the taxa being studied, but is not itself the focus of the stud

Accepted Answer

outgroup

Question 41

the condition of possessing more than two complete sets of chromosomes, caused by a massive error in mitosis or meiosis

Accepted Answer

polyploidy

Question 42

When ring-necked doves mate with rock doves, less than 6 % of eggs hatch. reproductive isolation?

Accepted Answer

postzygotic: hybride viability

Question 43

State the term that describes the transport of sugars etc in the phloem.

Accepted Answer

translocation

Question 44

gene flow increases the divergence of populations

Accepted Answer

false

Question 45

•groups of undifferentiated cells that can undergo mitosis

Accepted Answer

meristems

Question 46

what structure on a flower produces the male gametophytes?

Accepted Answer

stamen

Question 47

which is not true about cambium

Accepted Answer

cluster of cells

Question 48

the range of ecological resources that a sp can use and the range of conditions it can tolerate

Accepted Answer

niche

Question 49

what is the sieve-tube element

Accepted Answer

the sugar-conducting cell found in phloem

Question 50

a trait that if found in certain groups of organisms and their common ancestor, but missing in more distant ancestors

Accepted Answer

synapomorphy

Question 51

a benefit of selfing is

Accepted Answer

assurance of pollination

Question 52

why are N,P, and K considered limiting nutrients?

Accepted Answer

their availability tends to limit plant growth and reproduction

Question 53

one possible outcome of secondary contact between populations is when two populations freely interbreed.. this results

Accepted Answer

in fusion of the populations

Question 54

Dry soils have

Accepted Answer

low water potential

Question 55

the carpel of a flower contains

Accepted Answer

the ovary

Question 56

a volcano erupts and physically separates a population of frogs into subgroups.... this is

Accepted Answer

allopatric speciation by vicariance

Question 57

a mature sporophyte is

Accepted Answer

diploid

Question 58

what structure on a flower advertises to pollinators?

Accepted Answer

petal

BIO 142-01 EXAM 1

Questions 58

BIO 142-01 EXAM 1

Questions 58