Variables in Science Investigations Variable - Any factors that can be controlled, changed, or measured in an experiment
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3 types of Variables in an Investigation
Independent Variable - The variable that has been intentionally changed to determine if it
Impacts the dependent variable. Different ways to think about this variable include the
manipulated variable, the cause, and the comparison.
Dependent Variable - The variable that changes in response to the change in the Independent
Variable. Other ways to think about this variable include the measurement taken in the
experiment, the responding variable, and the effect.
Controlled Variables - these variables remain constant and should be controlled". In an
experiment you intentionally manipulate one variable, the independent variable, and measure
the response, the dependent variable. EVERYTHING ELSE MUST REMAIN THE EXACT SAME. If
not you can't really tell what is impacting the dependent variable.
Research Questions - Every investigation starts with a research question. The research question is a
question, not a statement, and it contains the independent and dependent variable. The research
question either reflects a comparison or it reflects a cause/effect relationship.
Which TV show is preferred by teenagers during the 8 pm time slot?
IV:
DV:
CVS:

condenser is used to focus in the light microscope.

i believe the correct answer is the virus gets an envelope that contains host molecules when it leaves the host cell.

explanation:

during the bidding/release stage of a virus, it encapsulates itself with part of the membrane of the host cells in this case the cells of the monkey and is the reason as to why the scientist found the genetic material of the monkey on the viral cell surface.

further explanation

to understand this answer, we have to know the cycle a virus undergoes to replicate. a virus is basically a bunch of genetic material enclosed in a capsule and lacks any machinery or organelles to ensure their survival so they must enter a host cell in order to get the environment needed to survive. some viruses enter and lyse(destroy) the host cell after they have replicated and undergo the lytic cycle while some enter and leave the cell intact after replicating and these undergo a lysogenic cycle. to enter the cell, they undergo the first process called attachment by binding to specific receptors and co-receptors on the surface of the host cell. after attaching to the cell, they start the second phase called penetration where virus enters or is engulfed whole by the host cell through a process called endocytosis. it is the same process that a cell takes up materials it needs or pathogens around it. uncoating of the virus then happens after the virus has been engulfed and is the third stage. the virus then undergoes releasing of its genetic material in the host's matrix.   the materials then enter the nucleus and undergo biosynthesis by adding themselves in strands of rna being translated and then copies of the virus are produced in addition to the host genetic material. the material/newly formed viral material then undergoes assembly inside the host cell and form a capsule around them. the virus undergoes the last release/budding stage by binding to the host membrane and pushing outwards. in doing so when they tear away from the host membrane, they pick up the genetic material from the membrane of the host cell to form their envelope.

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level: high school