Test 4

If p= 0.6, what is q?

0.4

The closest living relatives of modern humans are

African apes

A fungal infection that covers an amphibian's skin can quickly kill the animal. Why cant amphibians tolerate their skin being covered with a foreign substance?

Amphibians have small lungs and use their skin fort gas exchange; the suffocate when the skin is covered with fungal growth

True or False: Members of two different species are never capable of mating.

False

Which of the following is a hominin?

Neandertal, australopithecine, Home erectus and Cro-Magnon

What would you most likely call a long chain of bacteria cells that are spherical in shape?

Streptococcus

Which of the following statements is true about the phylogenetic tree shown here?

The green monkey and rhesus monkey share a common ancestor with the gibbon and chimpanzee

What is meant by an organism's biotic potential?

The maximum rate of population growth with unlimited resources.

Which of the following is true about the majority of less-developed countries (LDCs) ?

They support the highest populations

A butterfly species has very wide distribution across southern Florida. In addition, the adults and caterpillars can use a wide array of plant species as a food source and also tolerant a broad range of temperatures. Based on these criteria, this species is unlikely to face extinction in the immediate future.

True, because they have broad habitat tolerances

A virus is specific to a particular type of host cell because

a glycoprotein on the viral capsid is a specific match to a receptor on the surface of a compatible host cell

Which event is specific to the Cretaceous mass extinction?

a large meteor impact

Retroviruses a. contains the enzyme reverse transcriptase b. only invade plants c. contain DNA d. produce protein directly from DNA e. produce RNA from DNA

a. contains the enzyme reverse transcriptase

Microevolution is the term that applies to which of the following? a. small scale changes over a short period of time b. any evolution at any scale c. large scale changes over a long period of time d. small scale changes over a long period of time e. changes of any scale within microorganisms

a. small scale changes over a short period of time

Some species of pathogenic bacteria are able to attack specific cells in the human body due to the structure called

adhesion factors

If a population of 200 squirrels has a 10 percent growth rate each year, how many individuals will there in the population after 3 years?

approximately 266

homologous structures

are often shared by organisms in the same line of descent

Which is the correct order of events in the lytic cycle of a bacteriophage?

attachment- penetration- biosynthesis- maturation-release

Which of these is mismatched? a. corolla-petal b. calyx- stigma c. stamen- anther d. carpel- ovary e. stamen- filament

b. calyx -stigma

Viroids and prions are alike in that both are infectious a. proteins b. molecules c. DNA d. RNA e. cell types

b. molecules

Which of the following would be considered analogous structures? a. the wings of a bird and forelimbs of a reptile b. the wings of a fly and the wings of a sparrow c. the pelvis of a human and the pelvis of a whale d. the forelimb of a bat and the forelimb of a horse e. the flipper of a dolphin and the arm

b. the wings of a fly and the wings of a sparrow

Elaborate courtship behaviors in animals, such as the blue-footed booby of the Galápagos islands, is an example of which of the following reproductive barriers?

behavioral isolation

When making bread, you first "proof" the yeast by mixing it with sugar in lukewarm water. Assuming that the yeast are alive, what happens next and why?

bubbles form as the yeast ferment sugar and release carbon dioxide

What feature enables the paramecium to move?

cilia

_____________ is the vascular tissue that conducts water and minerals from a plant's roots to its leaves a. Phloem b. Hypha c. Endosperm d. Xylem e. Corolla

d. Xylem

Which of the following is a characteristic only found in some viruses a. an inner core of nucleic acid b. an envelope c. genomes consisting of either DNA or RNA d. is an obligate intracellular parasite e. a protein capsid

d. is an obligate intracellular parasite

The presence of which features is the first step to being classified in domain Eukarya a. ribosomes b. chloroplasts c. mitochondria d. membrane-bound nucleus e. cell wall

d. membrane- bound nucleus

During a recent hurricane, 25 individuals of the same butterfly species were blown onto a barrier island in southern Florida. The hurricane which lead to the arrival of the butterflies on the island is an example of a ________ factor.

density-independent

Which of the following statements is/are true about human population growth? a. human population densities tend to be highest along the coasts b. the Black Plague resulted in a decreased growth rate in the 1300s c. the majority of the world's human population live in Asia d. changes during the Industrial Revolution led to a steep rise in the human population e. All of the above statements are true

e. All of the above statements are true

Without bacteria in the environment a. adequate amounts of carbon would not be available to living organisms b. plants would not be able to grow due to lack of nitrogen c. bioremediation would have limited use of a tool to clean up pollutants. d. there would be shortage of decomposer organisms e. all of the choices are correct

e. All of the choices are correct.

Which of the following generates genetic variation within a population? a. independent assortment of alleles b. mutation c. genetic recombination d. sexual reproduction e. all of the above answers describe ways that genetic variation is generated in a population

e. all of the above answers describe ways that genetic variation is generated in a population

Which of the following is an emerging virus? a. HIV b. SARS c. H5N1 d. West Nile e. all of the above are considered emerging viruses

e. all of the above are considered emerging viruses

Which of the following groups provides protection and nourishment to the embryo? a. angiosperms only b. gymnosperms only c. bryophytes only d. lycophytes only e. all plants

e. all plants

Which is not typical adult amphibian characteristics?

four-chambered heart

Which is a unique characteristic of mammals?

hair

In 2004, fossil skeletons of a new Homo species were discovered in Indonesia and named Homo floresiensis. Which factor was the key to classify this species in the genus Homo?

human alike rather than apelike craniums

A phylogenetic tree

indicates common ancestors

The increase in frequency of dark phenotypes in response to increased pollution is called

industrial melanism

Which of these has the necessary adaptations to survive in a dry land environment?

insect

At the bottom of the seed is?

is stored food

Beekeepers and scientists are puzzled and troubled by a decline in bee populations around the world. What would you predict as a likely consequence of the widespread lack of bees?

loss of crop productivity

What are the key features of chordates?

notochord, dorsal tubular nerve cord, pharyngeal pouches, and a tail

By definition, a fruit is derived from the

ovary

Which Hardy-Weinberg condition is violated by sexual selection?

random mating

In the process of natural selection, individuals that are most fit are the one that

reproduce the most

Organisms are more likely to face extinction if they have which of the following characteristics?

restricted geographic ranges

exponential growth

results in accelerating growth

A female peacock chooses a mate based on his showy plumage and courtship dance. This is an example of

sexual selection

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizes at around 45 individuals is

the carrying capacity

When a population reaches the stable equilibrium phase, this is considered

the carrying capacity of the environment

In regards to natural selection, which of the following individuals would be considered the most fit?

the individual that has the greatest number of offspring

In random mating

there is no factor influencing mate choice.

Emperor penguins defend an area around their nests. Their territory encompasses a complete circle around the nest with approximately a 0.5 m radius. If each nesting penguin has this same size and shape territory, what type of distribution will these animals exhibit?

uniform

Which of these is present in all fishes?

vertebrae

A zygote fails to undergo mitosis because of the mismatch in the number of chromosomes. This is an example of

zygote mortality