IB Bio Topic 3

Humans use their pelvis and femur to walk. In whales, pelvis and femur are.....

• Vestigial Structures

• Analogous Structures

• Mutations

• Acquired Traits

Tags

NGSS.MS-LS4-2

Analogous structures are similar because.....

• Common Ancestry

• Identical Appearance

• Similar Use

• Artificial Selection

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NGSS.MS-LS4-2

Why has antibiotic resistance evolved in bacteria?

• All bacteria reproduce quickly

• Bacteria exposed to antibiotics developed a resistance

• Resistant bacteria reproduce faster

• Resistance bacteria survive after exposed to antibiotics

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NGSS.MS-LS1-5

NGSS.MS-LS4-4

Where do adaptations come from?

• The individual organism decides to adapt

• Mutations that give an organism an advantage in its environment

• Genetic recombination during meiosis

• Both mutations and genetic recombination are sources of adaptation

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Lichens are returning to the forests of the industrial areas of the UK due to strict pollution control. What is the expected outcome in the population of peppered moths (Biston betularia)?

• Increased numbers of light coloured peppered moths

• Increased industrial melanism in peppered moths

• Increased predation of peppered moths

• Increased speciation of peppered moths

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS4-4

According to fossil records, the horses that lived 50 million years ago were much smaller, weaker and slower than modern horses. Which process is most likely responsible for the changes that have led to the increased size, strength, and speed in horses?

• commensalism

• inbreeding

• migration

• evolution by natural selection

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Natural selection results in change in a population's _____________ traits over time.

• inherited

• acquired

Tags

NGSS.MS-LS4-4

Over generations of time apart on different islands with different food sources, the separated populations of Galapagos finches accumulated genetic differences until each group had different beaks. This is an example of _____.

• natural selection

• genetic drift

• adaptation

• speciation

Tags

NGSS.MS-LS4-4

A phenotype that improves an organism’s chance of survival in their environment is considered a(n) ____________.

• natural selection

• adaption

• speciation

Tags

NGSS.MS-LS4-4

Which of the following is NOT an example of natural selection?

• People selectively breeding hamsters for size.

• Insect populations developing resistance to certain pesticides.

• Bacteria becoming resistant to antibiotics.

• Male birds of certain species inheriting colorful feathers that are more attractive to females.