Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
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 |
Virus |
|
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
|
|
Mesoderm |
Vertebrae
|
|
which has radial symmetry? |
Jellyfish |
|
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 |
mouth |
|
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 |
Elephantasis |
|
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 |
Reproduction |
|
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 |
Scorpian |
|
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 |
Pentaradial! |
|
Which of the follwing most closely resembles the fossils of ancient echinoderms |
Crinoidea |
|
Atriopore |
Excretion |
|
Which of the following is true about sharks and rays |
B they have placoid scales |
|
Sharks |
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 |
Caecilians |
|
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 |
|
Endotherms |
Mammals |