Free Printable Unit 4 AOS1 part 1

Worksheets

Unit 4 AOS1 part 1

Total questions: 18

Worksheet time: 15mins

Name

Class

Date

Which of the following would represent a sudden environmental change?

Wildfire

Global Warming

Competition for food

Desert encroachment

Where the better adapted organisms survive to pass traits along to offspring.

Evolution

Natural Selection

Extinction

Artifical Selection

What is the advantage of having different shaped beaks?

To look different from other species.

To be able to eat the food readily available in the environment.

To protect itself against predators.

To protect itself against prey.

Why are advantageous traits more likely to be passed onto offspring?

Because they are more likely to survive and reproduce.

Because they come from dominant alleles.

Because they come from recessive alleles.

Because the trait is an acquired phenotype.

Mutations are a change in what?

DNA

tRNA

genotype

phenotype

Where humans have bred organisms together based on traits we like.

Evolution

Natural Selection

Extinction

Artificial Selection

Genetic differences between organisms of the same species

Variation

Adaptation

Behavior

Environment

Group of organisms capable of interbreeding and producing fertile offspring.

species

gene pool

population

homologous structure

The ___ of an allele is the number of times that the allele occurs in a gene pool, compared with the number of times other alleles occur.

popularity

average

frequency

size

10.

What is it called when a small number of individuals colonize a new area?

founder effect

bottleneck effect

extinction

adaptive radiation

11.

A random change in allele frequency is called

genetic drift

fitness

speciation

the founder effect

12.

Northern elephant seals have dramatically reduced genetic variation because humans hunted them to near extinction in the 1890s, reducing the population to 20 individuals. They have since rebounded to 30,000 but they lack the genetic variation of the southern elephant seal which was not hunted. This is an example of?

Speciation

Catastrophism

Founder Effect

Bottleneck Effect

13.

What type of speciation refers to the emergence of a new species when a population is geographically isolated from its ancestor?

Peripatric speciation

Sympatric speciation

Allopatric speciation

Parapatric speciation

14.

What type of mutation is this?

point deletion

block deletion

block translocation

block duplication

15.

What type of mutation is this?

block inversion

block duplication

block translocation

block deletion

16.

what type of mutation is this?

point insertion

point deletion

silent mutation

frameshift mutation

17.

What type of mutation is this?

block

frameshift

duplication

silent

18.

I feel comfortable with this area of content and am ready to move on......

Yes, all good

No, I haven't done enough work but I'll get there

No, I don't understand it yet

Yes, I'm a bit behind but OK to keep going

Reset

Unit 4 AOS1 part 1

Total questions: 18

Worksheet time: 15mins

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