WorksheetsBiology Natural Selection Review
Total questions: 18
Worksheet time: 14mins
Which of the following is not a model idea for why traits change over time?
Traits can be advantageous or disadvantageous
Offspring do not resemble their parents
Populations tend to grow exponentially but don’t due to limited resources
If you have the advantageous trait you survive and reproduce
There are black and white sheep living on mountains of dark colored rocks. Which sheep has the disadvantageous trait?
black sheep
white sheep
brown sheep
red sheep
Why don’t populations reproduce at an exponential rate?
Too many mates to choose from
Competition
Bad weather
Lack of resources
What did you learn from the variation lab?
All organisms have similar traits
Only certain populations have variation in traits
A population of organisms will have a variety of traits that they possess
Only aquatic species have identical traits to one another
Which population would have the greatest chance of survival?
A population with 7 variations
A population with 11 variations
A population with 2 variations
A population with no variations
What chooses the advantageous trait for a population?
Biomass of food
Parents
Environment
Humans
If you have the disadvantageous trait in the population what will likely happen to you?
You will survive and reproduce
You would die
You will have many mates
You will survive but not reproduce
What was the disadvantageous trait for the finches on Daphne Major ?
Coloration patterns
Large beaks
Antibiotic resistance
Small beaks
Which statement below would be something Darwin would say?
Rhinos grew out their horn for survival
Rhinos passed on their newly acquired trait to their offspring
Rhinos change color in order to survive
In the Rhino population there is variation of traits
Which statement below would be something Lamarck would say?
Birds grew out their beaks and passed on the newly grown beak to offspring
There is variation of beaks in the population
Some beaks are advantageous and some are disadvantageous
Offspring resemble parents
Which statement below explains why traits change over time?
Organisms can have both the advantageous trait and disadvantageous trait
Populations grow exponentially
There is variation of traits among species
Individuals with the advantageous trait will die
Which of the following statements is true about Charles Darwin?
He believed the evolution of a species was due to the inheritance of aquired characteristics
He was in agreement with Lamarck's theory of how evolution occurred
He believed that the variation seen within natural populations is the result of repeated mutation
He believed that those most suited to their environment survive, and given enough time, the species will gradually evolve
Natural selection is about survival of the BIGGEST AND THE STRONGEST
True
False
What did Lamark believe occurred in regards to how giraffes acquired their long necks?
Giraffes once had short necks that got progressively longer as members of each subsequent generation stretched their necks
It was through random variation that some giraffes had longer necks than others
The competition between males had driven the evolution of the giraffe neck, with female giraffes somehow carried along as males kept pushing the limits of neck length
Since shorter creatures pick over food at lower level, giraffes evolved to allow them to reach food and nutrients that others cannot
What did we learn in the worm eater lab?
Those with advantageous triats will die
Offspring tend NOT to resemble parents
Those with disadvantageous triats will survive and reproduce
Those with the advantegeous trait will survive & reproduce while those that dont will die and more indiviudals are born with the advantegous trait
What choices do organisms have that run out of resources?
They will die.
They could migrate to try and find resources and if they dont they will die
They dont need resources
Those are the organisms with the advantageous trait
There are white fish, white & black speckled fish and red fish living in a white coral reef. Which variation would be the disadvantageous trait?
White fish
All the fish
White and black speckled fish
Red fish
There are red frogs, green frogs, yellow frogs, blue frogs & black frogs. How many variations of frogs are there?
only 1
4
5
2
