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WorksheetsNatural Selection
Total questions: 10
Worksheet time: 5mins
Organisms of the same species can breed with each other and pass down DNA to their offspring.
True
False
Fitness in the biological sense is determined by...
how long an organism lives
how much exercise an organism can do
how many offspring the organism has
Which sentence is NOT true about evolution?
Evolution is the result of natural selection.
Evolution is change over time.
Evolution is how an organism changes during its lifetime.
Mutations and variations are...
random
can be controlled by the organism
A mutation that makes an organism better suited to its environment and therefore thrive and reproduce is called...
a negative mutation
an adaptation
a substitution
a subtraction
All mutations have a negative effect on a population of organisms.
True
False
When we talk about variation in a population, we are talking about...
similarities among the organisms for a certain characteristic
differences among the organisms for a certain characteristic
Antibiotic-resistant bacteria are the result of evolution.
True
False
Natural selection occurs because...
some organisms have characteristics that make them more likely to survive and pass on their characteristics
all organisms in the population are the same.
Antibiotics work against...
bacteria
viruses
