biology sol focus reviews
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Biology SOL Focus Reviews. After a volcanic eruption has covered an area with lava, which of the following is the most likely order of succession in the repopulation of the area? A lichens →grasses →shrubs →trees B mosses →grasses →lichens →trees C grasses →trees →mosses →lichens - PowerPoint PPT PresentationTRANSCRIPT
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Biology SOL Focus Reviews
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After a volcanic eruption has covered an area with lava, which of the following is the most likely order of succession in the repopulation of the area?
A lichens →grasses →shrubs →trees B mosses →grasses →lichens →trees C grasses →trees →mosses →lichens D shrubs →grasses →trees →lichens
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The diagram below shows Rosalind Franklin’s x-ray diffraction image of DNA.
How did this evidence affect the work of Watson and Crick?
A It was used to determine the physical structure of DNA.
B It was used to identify the four bases that make up DNA.
C It was used to develop the theory of independent assortment.
D It was used to show that DNA was the molecule of inheritance. CSB10032
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Which information was most important to the development of genetic engineering techniques?
A the observation of nondominant alleles B the discovery of lethal genes
C the formulation of Punnett squares D the structure of a DNA molecule
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The cell membrane of the red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. Because other substances are blocked from entering, this membrane is called
A perforated. B semi-permeable. C non-conductive. D permeable.
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Some snake venoms are harmful because they
contain enzymes that destroy blood cells or tissues. The damage caused by such a snakebite could best be slowed by
A applying ice to the bite area. B drinking large amounts of water. C inducing vomiting. D increasing blood flow to the area.
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There are many different enzymes located in the cytoplasm of a single cell. How is a specific enzyme able to catalyze a specific reaction?
A Different enzymes are synthesized in specific areas of the cytoplasm.
B Most enzymes can catalyze many different reactions.
C An enzyme binds to a specific substrate (reactant) for the reaction catalyzed.
D Enzymes are transported to specific substrates (reactants) by ribosomes.
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Eukaryotic cells are differentiated from prokaryotic cells because eukaryotic cells
A are much smaller. B have permeable membranes. C have a higher rate of reproduction. D have nuclei.
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A cell from heart muscle would probably have an unusually high proportion of
A lysosomes. B mitochondria. C mRNA. D Golgi bodies.
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Which cellular organelle is responsible for packaging the proteins that the cell secretes?
A cytoskeleton B cell membrane C lysosome D Golgi apparatus
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Which of the following best describes meiosis?
A It is carried out in all tissues that require cell replacement.
B It occurs only in cells in the reproductive structures of the organism.
C It happens in all tissues except the brain and spinal cord.
D It is the first stage of mitosis.
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In a pond, the primary producer is a green alga, Spirogyra; the primary consumer is the crustacean, Daphnia; the secondary consumer is a small fish, the bluegill; and the tertiary consumer is a larger fish, the smallmouth bass. What changes can be expected in the pond if the Daphnia are killed with pesticides?
A The Spirogyra population will probably die. B The bluegill population will probably increase. C The Daphnia population will eat something else.D The smallmouth bass population will die.
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Rabbits introduced into Australia over 100 years ago have become a serious pest to farmers. Rabbit populations increased so much that they displaced many native species. Why did this occur?
A Rabbits have a high death rate.B There are few effective predators.C Additional rabbit species have been
introduced. D There is an increase in rabbit competitors.
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A healthy individual is a carrier of a lethal allele but is unaffected by it. What is the probable genotype of this individual?
A two dominant normal alleles B one recessive lethal allele and one dominant
lethal allele C one recessive lethal allele and one dominant
normal allele D one dominant lethal allele and one recessive
normal allele
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Which of these would have the least effect on natural selection in a subspecies of giraffes that is geographically isolated from other subspecies of giraffes?
A available niches B existing predators C chromosome number D available food resources
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A small portion of a population that is geographically isolated from the rest of the population runs the risk of decreased
A genetic drift. B mutation rate. C natural selection. D genetic variation.
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Which of the following require a host cell because they are not able to make proteins on their own?
A blue-green algae B bacteria C protozoans D viruses
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A single species of squirrel evolved over time into two species, each on opposite sides of the Grand Canyon. This change was most likely due to
A higher mutation rates on one side. B low genetic diversity in the initial
population. C the isolation of the two groups. D differences in reproductive rates.
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How do human diseases caused by bacteria and diseases caused by viruses react to antibiotics?
A Neither responds to antibiotics. B Both respond to antibiotics. C Viral diseases respond to antibiotics;
bacterial diseases do not. D Bacterial diseases respond to
antibiotics; viral diseases do not.
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Which statement best summarizes theinformation in the graph?A The cells survive best underacidic conditions.B The cells survive best under basicconditions.C These cells would survive betterin distilled water.D The survival of these cells doesnot affect pH.
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An experiment was designed to determine the effects of cool temperatures on the germination of piñon pine seeds. Which of these variables was LEAST important to control in this experiment?
FThe brand name of the refrigerator used to produce the cool temperatures
GThe number of seeds used in each group HThe amount of time that the seeds were
exposed to cool temperatures JThe temperature range used to define
cool temperatures
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F
G
H
J
According to this label, one serving of this product would provide about 1/3 of the average daily value of –
F fat
G cholesterol
H carbohydrates
J protein
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The diagram below shows undisturbed sedimentary strata at the bottom of an ocean. The fossils found in layer B resemble the fossils found in layer A. This similarity suggests that
modern forms of life may have evolved from earlier forms of life vertebrate fossils the fossils in layer B were formed before the
fossils in layer A are only found in sediments the fossils in layer A must be more complex than those in layer B
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To study the structure of phloem and xylem tissue, a student could prepare and observe sections using a(n)
microscope centrifuge incubator triple beam balance
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Base your answer on the diagram below and on your knowledge of biology. The diagram illustrates the relationships between the organisms in a certain pond. In addition to sunlight, another factor needed to make this a self-sustaining ecosystem would be the presence of
A. producers B. primary consumers C. decomposers D. higher order consumers
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Base your answer on the diagram below and on your knowledge of biology. The diagram illustrates the relationships between the organisms in a certain pond. In this pond community, which organisms are secondary consumers?
F. aquatic crustaceans and raccoons G. carnivorous fish and aquatic crustaceans H. ducks and minnows J. ducks and carnivorous fish
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The graph below shows that changes in two populations of herbivores in a grassy field. A possible reason for these changes is that
all of the plant populations in this habitat decreased population B competed more successfully for food
than population A did population A produced more offspring than
population B did population A consumed the members of population B
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In which group would there be the greatest similarity between members in terms of structure and function?
A. species B. genus C. kingdom D. phylum
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Genetics Focus Questions
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If a corn plant has a genotype of Ttyy, what are the possible genetic combinations that could be present in a single grain of pollen from this plant?
A Ty, ty B TY, ty C TY, Ty, ty D Ty, ty, tY, TY
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In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. What are the possible combinations of genes in the offspring of two red-eyed heterozygous flies (Rr)?
A RR only B rr only C Rr and rr only D RR, Rr, and rr only
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Mendel hypothesized that reproductive cells have only one factor for each inherited trait. This hypothesis is supported by the observation that
A haploid cells are produced by mitosis. B diploid cells are produced by mitosis. C haploid cells are produced by meiosis. D diploid cells are produced by meiosis.
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5' ATCAGCGCTGGC 3'
The above sequence of DNA is part of a gene. How many amino acids are coded for by this segment?
A 4B 8C 12D 20
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One human disease is caused by a change in one codon in a gene from GAA to GUA. This disease is the result of
A a mutation. B a meiosis error. C crossing-over. D polyploidy.
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In certain breeds of dogs, deafness is due to a recessive allele (d) of a particular gene, and normal hearing is due to its dominant allele (D). What percentage of the offspring of a normal heterozygous (Dd) dog and a deaf dog (dd) would be expected to have normal hearing?
A 0% B 25% C 50% D 100%