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91 Cards in this Set

  • Front
  • Back
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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

And I'm phibians, 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?