WorksheetsBiology
Total questions: 20
Worksheet time: 30mins
Which organisms and set of characteristics are correctly paired?
fungi—carry out photosynthesis and heterotrophic nutrition
plants—carry out respiration and autotrophic nutrition
decomposers—carry out photosynthesis and autotrophic nutrition
animals—carry out autotrophic nutrition and heterotrophic nutrition
Humans have an effect on ecosystems when they use native grasslands or forested areas for farming or urban use. One negative effect of these changes on the ecosystem is that there will be
less biodiversity
more homes
successful economic growth
increased food production
Finches on the Galapagos Islands express a variety of traits. Variability in the offspring of these fi nches is a result of
mutation and cloning
meiosis and mutation
mitosis and asexual reproduction
mitosis and genetic recombination
The corn we eat today is larger and has more kernels than the corn people first grew thousands of years ago. Which process is most likely responsible for the changes that have occurred?
mitosis
succession
direct harvesting
selective breeding
Which activity would be an appropriate first step when designing an experiment?
reporting a conclusion based on multiple experimental trials
researching the problem, using information from a variety of sources
creating a data table to organize experimental observations
repeating the experiment with a different hypothesis
Which statement describes a function of the hormone estrogen?
It regulates the secretion of digestive enzymes.
It promotes sperm production in males
It influences the development of adult sex characteristics.
It maintains blood sugar levels.
The primary function of the human male reproductive system is to
provide a site for fertilization
produce and transport gametes
protect and nourish the embryo
prevent urine from leaving the body
Shrimp that live in the cold waters off Alaska will die if introduced into warm water. One likely reason these shrimp do not survive is that enzymes in the shrimp
start to replicate
change shape
are composed of fat molecules that melt
break down into small starch molecules
Farmers in India have increased the harvest yield of food crops like eggplant by growing them from seeds that have been modified to produce a bacterial toxin that is harmful to pest insects. This is an example of
selective breeding of the insects
spraying an insecticide on plants
selective breeding of the eggplant
an application of biotechnology
In the fall, some farmers plow the remains of corn plants into the ground. This activity contributes most directly to the
increase in the biodiversity of their fields
depletion of nonrenewable resources
destruction of natural habitats
recycling of organic matter
A person usually experiences small variations in body temperature over a 24-hour period. These variations in temperature are an example of
an immune response
genetic differences between individuals
an adaptation to global warming
dynamic equilibrium
Fossil fuels have been used for years as a source of energy. Even though there are many negative issues associated with the use of fossil fuels, they continue to be used to a great extent. This is most likely because
they have been commercially available as an energy source
there are alternatives to these types of fuels
they have had a positive effect on global temperatures
fossil fuels can be burned to produce large quantities of carbon dioxide
Sometimes, a person is born with one or more extra chromosomes in each cell. This usually results in abnormalities because the affected person has
a reduced number of genes in cell nuclei
fewer cell mutations than a person with a normal chromosome number
more genes in each cell than a person with a normal chromosome number
less DNA in cell nuclei, but more proteins in cell mitochondria
Fish absorb oxygen through the gills, earthworms absorb oxygen through the skin, amebas take in oxygen through the cell membranes, and cows inhale oxygen through the nasal passages into their lungs. This statement demonstrates that living things
rely on similar or the same processes, but accomplish them in different ways
rely on different processes and accomplish them in different ways
rely on different processes, but perform them in the same or related ways
have no relationship to one another, and are all independent individuals
In New York State, small farms that were abandoned many years ago have become hardwood forests. This is an example of
local deforestation
biotechnology
ecological succession
habitat loss
The fossil record of ancient life forms provides scientific evidence of
direct harvesting
selective breeding
gene manipulation
evolutionary changes
The processes of deletion, insertion, and substitution can alter genes in a skin cell. The altered genes will most likely be passed on to
sperm cells
egg cells
every cell that develops from that skin cell
only a few of the cells that develop from that skin cell
Before starch can enter a cell, it must be
absorbed by simple sugars
diffused into simple sugars
digested to form simple sugars
actively transported by simple sugars
In a cell, protein synthesis is the primary function of
ribosomes
mitochondria
chloroplasts
vacuoles
In a multicellular organism, organs carry out a variety of life functions. In a single-celled organism, these functions are performed by
tissues
organelles
organ systems
organs
