WorksheetsSC10 Biology
Total questions: 25
Worksheet time: 13mins
Who developed the theory of natural selection?
Jean-Baptiste Lamarck
Charles Darwin
James Hutton
Gregor Mendel
What is evolution?
How different organisms developed from a common ancestor; change over time
How likely an individual is to survive and reproduce based on its traits
The process by which those with the highest fitness pass on their genes
The process where organisms acquire a trait in their lifetime and pass it on
Does evolution describe a change in an individual or a population?
Individual
Population
Artificial Selection can be defined as...
the selective breeding of organisms by humans for specific, desirable traits
the change in characteristics of a population from one generation to another
the process where organisms with certain traits are better able to survive and reproduce
what happens when there is a sudden decrease in population size, such as when there is a natural disaster
Which is an example of artificial selection?
A farmer collects seeds from his largest fruit and replants only these seeds
A rancher chooses to breed his longest-horned bull to produce more long-horned cattle
A dog breeder chooses which dogs to mate to produce offspring that do not shed
All of these are correct
Natural Selection is...
selective breeding where humans decide which traits are desired
a change in characteristics from one generation to the next
the process where individuals with traits that make them better adapted to their environment survive and reproduce
a trait that increases fitness
Another name for natural selection is...
hybridization
bottleneck effect
inheritable variation
survival of the fittest
What is an example of natural selection?
tortoise population that eats tall cacti develops longer necks over time
a dog breed becomes smaller because of human demand
a white moth is predated on a dark tree
a population of trees is killed by a large flood
A trait that allows some organisms to survive while others do not is a/an...
evolution
mutation
adaptation
inheritable trait
Which is an example of an adaptation?
A group of rabbits have thick fur to stay warm in the winter
A group of moths have darker wing colors to blend in to the trees
A bird has a long thin beak to eat insects on cacti
All of these are correct
What is fitness?
How strong an organism is
How well adapted an organism is to its environment
The lifespan of an organism
The characteristics that can be passed on to the next generation
What is recombinant DNA
DNA from 2 different organisms combined
DNA from 2 different ribosomes
DNA that is separated out from a vector
Which of the following could be used as a vector for a human gene?
Bacterial Plasmid
Bacteria
A mitochondria
mRNA
In which ways can genetic engineering can improve crops
Make them pest or drought resistant
Make them more nutritious
Make them larger
All answers are correct
A circular piece of DNA, found in bacteria, is called:
A plasmid
mRNA
Ribosome
Nucleotide
