The movement of alleies into or out of a population

due to migration is called...

nonrandom mating

or

gene flow

Gene flow

Tallness (T) is dominant to shortness (t) in pea plants. Which of the following represent a genotype of a pea plant that is heterozygous for tallness?

tt

or

Tt

Tt

Linnaeus's two-word system for naming organisms

is called...

taxonomic evolution

or

binomial nomenclature

binomial nomenclature

During alternation of generations, cells reproduce by

mitosis

or

both meiosis and mitosis

both meiosis and mitosis

In 1908, Hardy and Weinberg independently

demonstrated that...

recessive alleles replace dominant alleles in a population over long periods of time

or

dominant alleles do not replace recessive alleles in a population

dominant alleles do not replace recessive alleles in a population

As a population reaches its carrying capacity, there is an increase in competition for...

shelter

or

food

or

all of the above

all of the above

A vaccine is...

a harmless version of a disease-causing microbe

or

a substance that kills bacteria or viruses

a harmless version of a disease-causing microbe

The waxy protective covering of a land plant is called a

cuticle

or

rhizome

cuticle

The point at which two chromatids are attached to each other in a chromosome is called a(n)

centromere

or

centriole

centromere

Bianary fission...

occurs when two cells collide with each other

or

is the process by which bacteria reproduce

is the process by which bacteria reproduce

Which of the following does not require energy?

active transport

or

diffusion

diffusion

Darwin conducted much of his research on...

the Galapagos Islands

or

the Hawaiian Islands

the Galapagos Islands

Actual proportions of homozygotes and heterozygotes can differ from Hardy-Weinberg predictions because of...

the occurrence of mating

or

nonrandom mating among individuals

or 

all of the above

all of the above

When an organism dies, the nutrients in its body...

are released by the action of decomposers

or

can never be reused by other living things

are released by the action of decomposers

The unknown genotype of an individual with a dominant phenotype can be determined using...

a test cross

or

a ration

a test cross

The process by which cells become specialized in form and function is called...

aggregation

or

differentiation

differentiation

As cell size increases, the surface-area-to-volume ration

remains the same

or

decreases

decreases

All scientific names must have

the same species name

or

two Latin words

two Latin words

An organism's niche includes

where it eats

or

what it eats

or

all of the above

all of the above

The range of phenotypes shifts toward one extreme in

directional selection

or

disruptive selection

directional selection

The organelles associated with plant

photosynthesis are the...

Golgi apparatus

or

chloroplasts

chloroplasts

Major ecosystems that occur over wide areas

of land are called...

communities

or

biomes

biomes

Diffusion is the movement of a substance

only in liquids

or

from an area of high concentration to an area

of lower concentration

from an area of high concentration to an area

of lower concentration

Various organs that carry out a major body

function make up a(n)

body

or

organ system

organ system

The primary purpose of the fruit is...

to permit cross-fertilization

or

seed dispersal

seed dispersal

Flowering plants are classified as monocots

or dicots according to the number of their...

cotyledons

or

roots

cotyledons

Angiosperms produce seeds in...

gymnosperms

or

fruits

fruits

The process by which species evolve in response to 

other living members of their ecosystem is called...

coevolution

or

compromise

coevolution

The entire molecule shown in the diagram is called a(n)

nucleotide

or

polysaccharide

nucleotide

The diffusion of water into or out of a cell is called...

selective transport

or

osmosis

osmosis