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128 Cards in this Set

  • Front
  • Back

Coacervates are similar to cells but lack which of the following

a genetic info

b interior fluid

c complex organic molecules

d the chemical properties of cells.

A. genetic info.

The planets of our solar system gained mass for a half-billion years after their formation as a result of which of the following?

B collisions with space debris.

If the halflife of carbon 14 is 5730 years, how many would it take for 7/8s of the original sample to decay

C. 17190 years.

Cholorplasts: cyanobacteria :: mitochondria : ???

B aerobic Prokaryotes.

What is the term for the idea that geologic processes occurring now on Earth are much the same as those that occurred long ago?

B. Uniformitarianism

What is the term for the biological process by which the kinds of organisms on earth change over time?

A Evolution.

When the internal structures of two species are very similar what can be inferred of the two species>

D They evolved from a common ancestor.

Beak size in finches is correlated to the size of seeds they can eat what can be inferred from the graph?

B In dry years the finches that survive are mostly those that can eat larger seeds.

Vestigial : functional: :: vacated :

D occupied

What does the diagram imply about warbler finches and armadillo?

C they form a common ancestor.

What is the term for the total genetic information in a population?

A gene pool

Saint Bernard's and chihuahuas cannot normally mate due to size, so to an extent they reproduce in isolation. What type of isolating mechanism is operating?

B Prezygotic.

How do mutations affect genetic equilibrium?

C. `Mutations introduce new alleles

Which model of speciation is illustrated by model a in the graph

A gradualism

Which model of of speciation rates is illustrated by model B in the graph?

D punctuated equilibrium.

Genotype : allele :: phenotype :

A Trait.

Which type of selection is modeled in the illustration above?

D directional selection.

Which information is given to a species name? genus and order?

C genus and species identifier

To which level of classification does a group of closely related species of organisms belong?

C Genus.

Eukaryotic organisms that have a nucleus and organelles have a cell wall made of chitin and secrete digestive enzymes belong to which kingdom.

A fungi

On the basis of this clado gram, Which plants share the most recent common ancestor?

D pin trees and flowering plants.

Class: Order:: Kingdom:

D phylum

Which level of classification represents a species?

A. A

What are the levels of organization in ecology?

C organism, popuulation, community, ecosystem, biosphere.

What makes up the ecosystem?

D all the living and nonliving factors in an environment.

Which of the following are abiotic factors?

C sunlight

How do decomposers benefit an ecosystem?

A by returning nutrients to the soil.

what is the term for the kinds of organisms that make up the trophic level labeled C?

B consumers.

Bear omnivore vulture

C detritivore.

What roe do the krill have in this food chain?

B they are consumers.

Which of the following is a population>

D.All the fish of the same species in a lake

Which of the following is true in exponential model of population growth?

A population growth continues indefinitely.

Which of the following refers to the population size that can be sustained by an environment over time.

C carrying capacity.

Which of the following is a density dependent factor for a population of deer in a forest?

D the number of cougars in the forest?

In the graph which time period shows negative growth of the population?

D phase 4

Birth rate death rate immigration

C emigration.

AT which point would a density dependent limiting factor have a greater impact on the population?

C 3

A certain tropical tree has fruit that is eaten by only one species of bat.

B mutualism

Why are estuaries more productive than most other biomes?

B estuaries have shallow nutrient laden water.

Which of the following characterizes the neritic zone of the ocean?

D it receives nutrients washed from the land

Which of the following is true of temperate deciduous forests?

C they undergo seasonal changes in temperature

Which of the following best describes the water of all eutrophic lakes?

C murky

Which of the following biomes is best represented by this graph?

C Tropical rain forest

Grasses savanna coniferous trees

A taiga

If a scientist needed to add a bar representing the temperate grassland biome to this graph where should the bar be placed?

B between the savanna and the estuary

How do bacteria produce yogurt from milk?

B fermentation

What are the rodshaped bacteria called

B bacilli

What are thermoacidophiles?

B Archae

Genetic recombination in bacteria can occur during which process?

A Conjugation

Which of the following antibiotics killed the bacteria most effectively?

D Streptomycin

Which of the following had no effect?

D cepahlosporin

Obligate aerobe oxygen obligate anaerobe

B absence of oxygen

What shape is represented by Organism c?

C spirillum

You would expect the members of the bacterial genus bacillus to be what type of shape?

A rod shaped

What are viruses made of?

C Protein and nucleic acids

How do viroids differ from viruses?

B No capsid

During which of the following processes does a phage kill its host?

C The lytic cycle

Which of the following is one reason why viruses are not considered living organisms?

B viruses dont metabolize

Skin person capsid


Most scientists believe protists evolved from

D prokaryotes

Protist habitats are often characterised by the presence of which?

D moisture

Flagella are characteristic of members of which phylum>

D sarcomastigophora

Bacillariophyta autotrophs apicomplexa

C parasites

What are the fungi that feed on decaying organic matter called?

D saprophytes

Lichens represent a symbiotic association between afungus and which other type of organism?

A an alga

In a mycorrhiza a fungus lives in a symbiotic relationship with which of the following?

B a plant

What is the structure labeled x called>

C Sporangium`

To what phylum does the fungus in the diagram above belong?

B zygomycota

Septa septum asci

A ascus.

which of the following plants are bryophytes

C hornworts and liverworts

In which way do mosses help start new biological communities?

A forming new soil

True roots stems and leaves are characteristics of which types of plants

B cycads

Which of the following phrases describes monocotts?

B have parallel venation

Bryophytes spore angiosperm

A seed

Which of the following are the main function of collenchyma and sclerenchyma?

B support

Most monocots do no thave which of the following

D secondary growth

Which of the following structures is found in stems but not roots

A nodes

The movement of water through a plant is driven by the loss of water vapor from which structure?

C leaves

Mesophyll photosynthesis sapwood

C water transport

The production of a single type of spore is characteristic of the life cycles of which kinds of plants?

A mosses and most ferns

Why is sexual reproduction in gymnosperms and other seed plants independent of seasonal rains?

B pollinators or wind carry the sperm to the eggs

Generative cell pollen grain egg cell

D embryo sac

Which structure of the corn kernel is the endosperm

A 1

Which of the following is the name for the process in which flowering is stimulated by exposure of plants to cold?

B vernalisation

Which of the following is the result of abscission

A leaves fall off stems

Which of the following describes the relationship between nastic movements and a stimulus?

D nastic movements occur independently of the direction of stimulus

What is the response of a plant to the length of days and nights called?

B phototropism

Cell elongation gibberellins cell division

C cytokinins

What are the basic tissue types in an embryo called?

B germ layers

The diagrams represent the development of

C octopus

With which of the following is the process illustrated above associated?

C spiral cleavage



which has radial symmetry?


Why are spongin and spicules important to sponge?

C provide support

Which of the following structures are involved in both feeding and sexual reproduction in sponges?

D choanocytes and amoebocytes

Which of the following is not a characteristic of cnidarians?

B Choanocytes

Sponge osoculum hydra


IN which class is this body form dominate?

D scyphozoa

Whats a pharynx for

A feeding

Where do blood flukes of the genus schistosoma reproduce asexually?

D inside a humans blood vessels

Which of the followin is true of most rotifers?

C they feed with the help of cilia

Fluke schistosomiasis filarial worm


Which structures are involved in excretion

C m and N

Why do terrestrial snails and slugs need an environment with a high moisture content?

A To avoid drying out

Which of the following are the only mollusks with a closed circulatory system?

D cephalopods

Annelids are divided into three classes based partly on the number of which of the following

A setae

Nephridium excretion clitellum


What do all anthropods have in common?

D jointed appendages

What is the chitin containing structure that protects and supports the body of an arthropod?

D an exoskeleton

Which of the following statements is true about compound eyes

D are composed of many individual light detectors

How do mites and ticks differ from spiders?

fused abdomens

Which animal has a chitinous exoskeleton?

B grasshopper

Mandible crayfish celicera


In a sea star gas exchange and excretion of wastes take place by diffusion through which of the following structures

B skin gills

Echinoderms = Starfish and sand dollars


Which of the follwing most closely resembles the fossils of ancient echinoderms




Which of the following is true about sharks and rays

B they have placoid scales


D Chondricthyes

The forelimbs of vertebrates evolved from which structures in lobe finned fishes?

Pectoral fins

Amphibians must lay eggs in water primarily for what reason>

The eggs do not have multicellular membranes and a shell

Anura frogs gymnophiona


What made reptiles a dominant species is the mesozoic era?

Well adapted to dry areas

What are the two basic parts of a turtles shell?

Plastron and carapace

What is the purpose of growing a new tail

Ability to escape from predators

Long legless bodys have helped snakes do what?

D burrow and move througgh thick vegetation