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BIOLOGY JLAB SOL REVIEW EXAM QUESTIONS WITH 100% VERIFIED ANSWERS
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BIOLOGY JLAB SOL REVIEW EXAMQUESTIONS WITH 100% VERIFIED ANSWERS
Scientists are using genetic engineering to develop a wheat crop that is resistant to
a particular kind of moth. How would they determine if the plants are
moth-resistant? - ANSWER Monitor moth populations in fields planted
with test and normal wheat.
Which of these is a decomposer in a Virginia forest? - ANSWER A mushroom
Students in a biology class thought that salt water would affect the movements of
planaria. They put 25 planaria in salt water and recorded their observations. Which
flaw was present in the design of their experiment? - ANSWER There was no
control
Unlike plants, fungi cannot make their food because they do not have - - ANSWER
chlorophyll
A biology student collected pine needles from four different species of trees. She
then made diagrams showing the number and actual length of needles in a bundle
and the common and scientific name of each species. Use her diagram above to
help you answer the following question. These four different pine trees are not
classified in the same - - ANSWER Species
Which feature do viruses have in common with animal cells? - ANSWER Presence
of a genetic code in nucleic acid
Gametes must be haploid because - ANSWER two gametes will unite during
fertilization to create a diploid cell
The study of embryos and other early stages of development can help in the
classification of living things, past and present, by providing clues about the - -
ANSWER common ancestry among vertebrate species
An insect called the hemlock woolly adelgid was introduced to a Virginia forest
,ecosystem. This pest feeds on the nutrients stored inside a hemlock tree, resulting
in the death of the tree. Which kind of data would best help a student evaluate the
effect of this insect? - ANSWER Information about the characteristics of the
ecosystem
before the adelgid infestation
Which of these supports the cell theory as it is stated today? - ANSWER New cells
are produced by the division of existing cells.
What did Rosalind Franklin contribute to the understanding of DNA molecules? -
ANSWER An image indicating the shape of a DNA molecule
When an animal eats, food stays in the stomach for a while. When a unicellular
organism, such as Paramecium, takes in food, the food is contained in which
organelle? - ANSWER Vacuole
Over many generations, unrelated or distantly related species may come to
resemble each other due to - - ANSWER similar environmental factors
Unknown animal: Met-Gly-Ser-Tyr-Tyr-Arg-His-His-Glu-Lys-Asp
One method of determining the classification of an animal is by comparing the
amino acid sequence. Which of these animals most closely resembles the unknown
animal? - ANSWER Dog: Met-Gly-Ser-Tyr-Tyr-Arg-His-Asp-Glu-Lys-Asp
What ratio of the offspring from the cross shown will be homozygous recessive for
the trait of tallness? - ANSWER 0 in 4
Which of these is capable of moving quickly in response to its environment? -
ANSWER Paramecium
Which of the following macromolecules are a prominent part of animal tissues that
function in insulation, helping animals conserve heat? - ANSWER Lipids
The reduction of the chromosome number during meiosis is most important for - -
ANSWER maintaining the chromosome number during sexual reproduction
The above diagram shows the process of osmosis. Only the water molecules could
enter the cell because water molecules - - ANSWER are smaller than the protein
molecules
, Charles Darwin proposed his theory of evolution based on observations of nature.
Which observation that contributed to his theory is illustrated by this population of
beetles? - ANSWER Individuals within a population may vary widely
A biologist has just discovered a new life form. The newly described organism is
multicellular, does not carry on photosynthesis, and absorbs nutrients from the
environment. It is composed of eukaryotic cells with cell walls. In which kingdom
would the organism be classified? - ANSWER Fungi
Alexander Oparin hypothesized that early life forms may
have been formed by the action of the sun and lightning.
Miller and Urey found that methane, ammonia, and hydrogen
gas react to produce amino acids when exposed to temperature
fluctuations and electrical current.
Sidney Fox found that heating solutions of amino acids
produces primitive "protocells."
What did the work of these scientists contribute to the study of biology? -
ANSWER It supported hypotheses about the origin of life.
The nonpoisonous eastern scarlet snake has colored bands that closely resemble the
poisonous coral snake. This selective adaptation provides the eastern scarlet snake
with - - ANSWER a method of avoiding predation
The organisms in a typical backyard are likely to include bacteria, grass, shrubs,
trees, insects, spiders, birds, and small mammals. Together, all these organisms
make up - - ANSWER a community
Around hot-water vents deep in the ocean live specialized communities. Bacteria
turn hydrogen sulfide into sugars by a chemical process. The bacteria then provide
food to other life forms, as shown in the diagram. Compared to food chains on
land, the bacteria fill the same role as - - ANSWER green plants
In an experiment, the height of several plants was recorded daily in millimetres.
Which tool would be the most accurate and appropriate for this measurement? -
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