Cell Biology
Death or mental retardation takes place if accumulation happens in
a.somatic cells
b.brain cells
c.meristemetic cells
d.sensory cells
b.brain cells
Evolutionary changes help in producing new
a.individuals
b.communities
c.species
d.plants
c.species
Read each definition and all four choices carefully, and find the answer that provides the best example of the given definition.
A Guarantee is a promise or assurance that attests to the quality of a product that is either (1) given in writing by the manufacturer or (2) given verbally by the person selling the product. Which situation below is the best example of a Guarantee?
a.Melissa purchases a DVD player with the highest consumer ratings in its category.
b.The salesperson advises Curt to be sure that he buys an air conditioner with a guarantee.
c.The local auto body shop specializes in refurbishing and selling used cars.
d.Lori buys a used digital camera from her coworker who says that she will refund Lori's money if the camera's performance is not of the highest quality.
d.Lori buys a used digital camera from her coworker who says that she will refund Lori's money if the camera's performance is not of the highest quality.
In a normal human being number of chromosomes is
a.23
b.46
c.53
d.26
b.46
When an early embryo or single egg divides into one or more separate embryos, it gives birth to
a.nonidentical twins
b.identical twins
c.triplets
d.singles
b.identical twins
Erratic Behavior occurs when an individual acts in a manner that lacks consistency, regularity, and uniformity. Which situation below is the best example of Erratic Behavior?
a.Julia cannot contain her anger whenever the subject of local politics is discussed.
b.Martin has just been told that he is being laid off. Before leaving his supervisor's office, he punches a hole in the door.
c.Rhonda has visited the dealership several times, but she still cannot decide which car to buy.
d.In the past month, Jeffrey, who has been a model employee for three years, has repeatedly called in sick, forgotten important meetings, and been verbally abusive to colleagues.
d.In the past month, Jeffrey, who has been a model employee for three years, has repeatedly called in sick, forgotten important meetings, and been verbally abusive to colleagues.
Pigments containing bodies which are bounded by membrane are called
a.plastids
b.chlorophyll
c.chloroplast
d.hemoglobin
a.plastids
Way of removing pollutants or toxic waste from environment with help of living organisms is called
a.degradation
b.bioremediation
c.integrated disease management
d.disease control
b.bioremediation
Alloys are a form of
a.mixture
b.compound
c.metal
d.transition metals
a.mixture
It is appropriate to compensate someone if you have damaged his or her property in some way. This is called Restitution. Which situation below is the best example of Restitution?
a.Jake borrows Leslie's camera and the lens shatters when it falls on the ground because he fails to zipper the case.When Jake returns the camera, he tells Leslie that he will pay for the repair.
b.Rebecca borrows her neighbor's car, and when she returns it, the gas tank is practically empty. She apologizes profusely and tells her neighbor she will be more considerate the next time.
c.Aaron asks Tom to check in on his apartment while he is out of town. When Tom arrives, he discovers that a pipe has burst and there is a considerable amount of water damage. He calls a plumber to repair the pipe.
d.Lisa suspects that the pothole in her company's parking lot caused her flat tire. She tells her boss that she thinks the company should pay for the repair.
a.Jake borrows Leslie's camera and the lens shatters when it falls on the ground because he fails to zipper the case.When Jake returns the camera, he tells Leslie that he will pay for the repair.
In word Lysosoma, 'lyso' means splitting and 'soma' means
a.cell
b.body
c.tissue
d.organic
b.body
Stomach is organ of food digestion therefore secretes enzyme which helps in digestion known as
a.bile
b.pancreatic juice
c.gastric juice
d.no enzyme
c.gastric juice
Reentry occurs when a person leaves his or her social system for a period of time and then returns. Which situation below best describes Reentry ?
a.When he is offered a better paying position, Jacob leaves the restaurant he manages to manage a new restaurant on the other side of town.
b.Catherine is spending her junior year of college studying abroad in France.
c.Malcolm is readjusting to civilian life after two years of overseas military service.
d.After several miserable months, Sharon decides that she can no longer share an apartment with her roommate Hilary.
c.Malcolm is readjusting to civilian life after two years of overseas military service.
Phagocytosed food is digested with help of enzymes which are present in
a.ribosome
b.lysosomes
c.mitochondria
d.Golgi complex
b.lysosomes
Gene frequency, gene flow, population density, age distribution, over population are attributes of
a.community
b.population
c.groups
d.individuals
b.population
Mixtures can be converted to compounds through
a.physical change
b.chemical change
c.high pressures
d.catalytic reactions
b.chemical change
Find the statement that must be true according to the given information.
The Pacific yew is an evergreen tree that grows in the Pacific Northwest. The Pacific yew has a fleshy, poisonous fruit. Recently, taxol, a substance found in the bark of the Pacific yew, was discovered to be a promising new anticancer drug.
a.Taxol is poisonous when taken by healthy people.
b.Taxol has cured people from various diseases.
c.People should not eat the fruit of the Pacific yew.
d.The Pacific yew was considered worthless until taxol was discovered.
c.People should not eat the fruit of the Pacific yew.