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;
91 Cards in this Set
- Front
- Back
- 3rd side (hint)
In which way do earthworms not benefit the environment? |
They require moisture in their surroundings |
|
|
One difference between plants and animals is that plants are... |
Autotrophs, and animals are heterotrophs |
|
|
While the dinosaurs flourished for 155 million years, mammals were... |
A minor group that changed little |
|
|
Molecules of DNA are composed of long chains of... |
Nucleotides |
|
|
In biomes where precipitation is low, most organisms have adaptations to... |
Conserve water |
|
|
The law of segregation states that... |
Allleles of a gene separate from each other by meiosis |
|
|
Which of the following would represent the strand of DNA from which the mRNA strand CUCAAGUGCUUC was made? |
GAGTTCACGAAG |
|
|
What is the portion of the protein molecule coded for by a piece of mRNA with the sequence CUCAAGUGCUUC |
Leu--Lys--Cys--Phe |
|
|
During DNA replication turn in a complementary strand of DNA is made from each original DNA strand. Thus if a portion of the original strand is CCTAGCT then the New Strand will be... |
GGATCGA |
|
|
The study of Developmental biology shows that... |
Closely related species will show similarities in embryos |
|
|
The first animals to invade the land were the... |
Arthropods |
|
|
Which of the following is not a human disease caused by a protist? |
Tuberculosis |
|
|
Precipitation that percolates into the soil becomes... |
Groundwater |
|
|
Purines and pyrimidines are... |
Classification groups of nitrogen bases |
|
|
All fishes have a(n)... |
Internal skeleton |
|
|
Which of the following is not a characteristic used to differentiate kingdoms? |
Root system |
|
|
Using radioactive tracers to determine the interactions of bacteriophages and their host bacteria, Hershey and Chase demonstrated without question that... |
DNA is the molecule that stores genetic information in cells |
|
|
Jaws probably evolved from the... |
Gill arches of jawless fishes |
|
|
Which of the following molecules led scientists to explore the role of RNA in the origin of life? |
Ribozymes |
|
|
Generally, fishes obtain oxygen through their... |
Gills |
|
|
In fishes, the lateral line senses... |
Vibrations |
|
|
Refer to the illustration. The photosynthetic algae are... |
Producers |
|
|
Refer to the illustration. Killer whales feed at the... |
Third and fourth trophic levels |
|
|
If an individual possesses two recessive alleles for the same trait, the individual is said to be... |
Homozygous for the trait |
|
|
In amphibians, gases are exchanged through lung breathing and through the... |
Skin |
|
|
The animals to first appear with jointed appendages are the... |
Arthropods |
|
|
A trait that allows organisms to survive and reproduce better than others without the trait in a specific environment is a(n)... |
Adaptation |
|
|
As the density of a population increases, the effects of starvation and disease also often increase. These are what kind of factors? |
Density dependent |
|
|
The scientific study of heredity is called... |
Genetics |
|
|
The passing of traits from parents to offspring is called... |
Heredity |
|
|
Ectoderm: nervous system:: |
Endoderm: respiratory system |
|
|
Structures found in bacterial cells but not in eukaryotic cells are... |
Circular chromosomes |
|
|
During transcription, the genetic information for making a protein is "rewritten" as a molecule of... |
Messenger RNA |
|
|
The phenotype of an organism... |
Is the physical appearance of a trait |
|
|
Refer to the illustration. Organism B is... |
Radially symmetrical |
|
|
Which of the following is common to the carbon cycle, the nitrogen cycle, and the water cycle? |
The substance is required by all living things and is involved in many processes that occur in all living things |
|
|
Darwin's theory lacked an explanation for... |
Inheritance of traits |
|
|
A nucleotide consists of... |
A sugar, a phosphate group, and a nitrogen base |
|
|
The group of fungi that includes the molds that often grow on bread is the... |
Zygomycetes |
|
|
Refer to the illustration. During which time period will the growth rate of the population be zero? |
Period C |
|
|
The haploid, gamete producing phase in the life cycle of some multicellular protists is known as the... |
Gametophyte generation |
|
|
Transcription begins when RNA polymerase... |
Attaches to the promoter sequence of a gene |
|
|
Vertebrates:deuterostomes:: |
Invertebrates:protostomes |
|
|
A species that is critical to an ecosystem because the species affects the survival and number of many other species is known as a(n)... |
Keystone species |
|
|
Plentiful resources:increasing growth rate:: |
Carrying capacity:decreasing growth rate |
|
|
The age of Earth is estimated to be about... |
4.5 billion years |
|
|
The coelacanth is a... |
Lobe-finned fish |
|
|
Under the linnaean system of classification, plants and animals are sorted into groups based on... |
Form and structure |
|
|
Refer to the illustration. The relationship shown in diagram 3 is... |
Commensalism |
|
|
Refer to the illustration. The relationship shown in diagram 2 is... |
Competition |
|
|
What does evolution mean in biology? |
Change in species over time |
|
|
Nitrogen is a component of... |
Proteins |
|
|
The "father" of genetics was... |
Gregor Mendel |
|
|
If the niches of two organisms overlap,... |
The organisms may have to compete directly |
|
|
Which of the following is not found in RNA? |
Thymine |
|
|
The diverse regions in the world's bodies of water are called... |
Aquatic ecosystems |
|
|
It is important to distinguish between gram-positive and gram-negative bacteria and diagnosing a bacterial infection because... |
Gram-negative and gram-positive bacteria differ in their response to different antibiotics |
|
|
As a population reaches its carrying capacity, resources become more scarce. Which of the following would increase within the population? |
Competition |
|
|
Homozygous:heterozygous:: |
gg:Gg |
|
|
The largest division that a group of organisms can belong to is a... |
Domain |
|
|
Natural selection could not occur without... |
Genetic variation in populations |
|
|
Which of the following does not affect the final outcome of gene expression? |
The number of amino acids in the protein being produced |
|
|
Plants use carbon dioxide to build organic molecules during the process of... |
Photosynthesis |
|
|
All the following evolved from early reptiles except... |
Fishes |
|
|
When two species compete the niche that each species ultimately occupies is its... |
Realized niche |
|
|
Probability is calculated by dividing the number of one kind of possible outcome by the... |
Total number of all possible outcomes |
|
|
Transcription, which is a stage of gene expression, is the process by which genetic information encoded in DNA is transferred to a(n)... |
RNA molecule |
|
|
In the yellow perch, |
External fertilization takes place |
|
|
The first fishes to appear in the Seas were members of which group? |
Agnathans |
|
|
Antibiotic resistance... |
Arises naturally in bacteria |
|
|
The difference between Mendel's experiments in the area of heredity and those done by earlier researchers was that... |
Mendel Express the results of his experiments in terms of numbers |
|
|
Which of the following usually results when members of the same species require the same food and space? |
Competition |
|
|
Processes of microevolution include... |
Migration and mutation |
|
|
Fungi obtain food by... |
Digesting food externally before absorbing it |
|
|
A diagram in which several generations of a family and the occurrence of certain genetic characteristics are shown is called a... |
Pedigree |
|
|
Better sanitation, hygiene, and Disease Control have lead which effect on the human population? |
Decreased death rate |
|
|
A pouch-like pharynx:tunicates:: |
Dorsal nerve cord:humans |
|
|
Leeches... |
Are used in some Medical Treatments |
|
|
When an individual heterozygous for a trait is crossed with an individual homozygous recessive for the trait, the offspring produced will... |
All have the same genotype |
|
|
What is the expected genotypic ratio resulting from a homozygous dominant × heterozygous monohybrid cross? |
1:1 |
|
|
Derived characteristics are traits... |
Found in closely related species |
|
|
Skates and rays are... |
Cartilaginous fishes |
|
|
Dinoflagellates:flagella:: |
Amoebas:pseudopodia |
|
|
The two major groups of bony fishes are the lobe-finned fishes and The... |
Ray-finned fishes |
|
|
Jawless fishes include |
Lampreys and hagfishes |
|
|
Succession occurs... |
As a previously existing Community is replaced |
|
|
Bird:hollow bones:: |
Archaeopteryx:feathers |
|
|
Like parasitism, herbivory does not usually result in the... |
Death of the plant |
|
|
Refer to the illustration above. What type of body plan is shown in diagram C? |
Coelomate body plan |
|
|
Refer to the illustration above. Level a is composed of... |
Producers |
|
|
What is the best living organism in the kingdom animalia? |
|
|