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WorksheetsBiology Semester Final Review
Total questions: 73
Worksheet time: 1hrs 8mins
Which of the following best describes how natural selection results in insects that are pesticide resistant?
When a pesticide is sprayed on a crop, a few insects survive. These insects happen to have a random mutation that makes them resistant to the pesticide. These insects survive and reproduce, eventually resulting in pesticide-resistant population.
When a pesticide is sprayed on a crop, the insects respond by mutating their DNA, making them resistant to the pesticide. Therefore, a pesticide resistant population evolves.
When a pesticide is sprayed on a crop, it causes mutations in the insect DNA. Some of these mutations make the insects pesticide-resistant. These insects now form a pesticide-resistant population.
When a pesticide is sprayed on a crop, it kills the insects, which allows a new species to migrate into the habitat. Some of these species are pesticide resistant, thus a new population of pesticide resistant insects appears.
A grizzly bear survives because he is well-adapted to his environment. When he reproduces he passes on those traits to his offspring. This process is called
Natural Selection
Artificial Selection
Mutation
Survival
Where are hereditary traits stored in all organisms?
In the blood
In the brain
In the DNA
In the heart
Why might it be helpful for a species to have a lot of variations?
They can't be seen by predators
If the environment changes, they might be better able to adapt
It is helpful in asexual reproduction
They don't recognize each other
One female salmon can lay hundreds of eggs. Why doesn't the salmon population increase dramatically?
Salmon reproduce asexually
Most offspring do not grow up to reproduce
Salmon eggs don't hatch
Salmon are extinct
Heredity is:
Survival of the fittest
The passing of genetic traits from parent to offspring
Believing in false gods
Unexplained
According to natural selection, light colored tree trunks would favor
light colored moths
dark colored moths
red colored moths
red and light colored moths
What is the purpose of cellular respiration?
to break down food into smaller molecules
to create energy in the body
to release energy from sugar molecules
to capture radiant energy from the environment
Oxygen is a gas produced by ___ and used by ___
photosynthesis; all organisms
photosynthesis; only animals
cellular respiration; all organisms
cellular respiration; only plants
photosynthesis; only plants
True or False: A cow consumes grass that contains carbon (in its proteins, fibers, etc.). That carbon might be exhaled or it might be incorporated into the cow's cells.
False
True
The carbon found in carbon dioxide can be rearranged to form ____ during photosynthesis.
glucose
water
oxygen
none of these is correct
The hydrogen in glucose is rearranged with oxygen to form water during -
photosynthesis
digestion
cellular respiration
decomposition
What percentage of the FEMALE offspring will be a carrier for this recessive disease?
0%
50%
100%
25%
The goal of transcription is to make RNA.
True
False
What is an example of a positive feedback mechanism?
This system helps balance water levels and eliminate dissolved wastes
Digestive System
Urinary System
Respiratory System
Nervous system
This system communicates with the rest of your body via chemical messages
Lymphatic System
Musculoskeletal System
Endocrine system
Nervous system
This kind of reproduction results in identical cells.
Binary Fission (asexual)
Conjugation (sexual)
The rate that bacteria develop antibiotic resistance at can be sped up by:
Exposure to lower levels of antimicrobials than prescribed
2.Exposure to broad-spectrum antibiotics (which aren’t specific to a microbe)
3.Overuse of antibiotics in foods/agriculture
4. All of the above
What can we do to reduce the rate of development of antibiotic resistant strains of bacteria
Always finish a course of antibiotics
Only take antibiotics when they are really needed
Take antibiotics whenever it is possible
Reduce the amount of antibiotics given to animals in the farming industry
Bacteria can double in population very quickly. Due to this, we say they exhibit -
Logistic population growth
Exponential population growth
Linear population growth
Negative population growth
Dependent variables are the -
factors in an investigation that you set up.
factors in an investigation that you measure and record as results.
factors in an investigation that you keep the same in every trail.
factors in an investigation that you observe.
A student designed an experiment to investigate a claim that athletes would have lower heart rates than nonathletes during exercise. After the students classified themselves as an athlete or a nonathlete, their resting pulses were determined. Then all the students performed the same exercise for four minutes and their heart rates were determined by recording the pulse rate in beats per minute. The students continued to measure their pulse rates for an additional four minutes. The average heart rate per minute for each group was determined. The data were recorded in a table. Which of the following was a variable held constant in this investigation?
Same exercise
Four minutes of exercise
Athletes vs. nonathletes
Measure heart rates before and after the exercise
To increase reliability and validity of experimental results,
decrease number of repetitions
increase number of independent variables
increase number of trials
decrease measurements
