EVOLUTION & TYPES OF SELECTIONS

EVOLUTION & TYPES OF SELECTIONS​

BY JACK VASQUENZA​

​WHAT ARE THE TYPES OF SELECTIONS?

​

• DISTURB SELECTIONS

• DIRECTION SELECTIONS

• ​STABLIZING SELECTIONS

Multiple Choice

WHAT ARE THE 3 TYPES OF EVOLUTION?

• DISTURB SELECTIONS;

  DIRECTIONAL SELECTIONS, AND SITUATIONS SELECTIONS

• DISTURB SELECTIONS, DIRECTIONAL SELECTIONS, AND STABLIZING SELECTIONS

• DISTURB SELECTIONS, DIRECTIONAL SELECTIONS, AND BALANCING SELECTIONS

• DISTURB SELECTIONS, IV SELECTIONS, BALANCING SELECTIONS

​DIFFERENT TYPES OF SELECTIONS: ​

​DISTURB SELECTION: NATURAL SELECTIONS THAT FAVOR BOTH EXTREMES PHENOTYPES AND AGAINST THE INTERMEDIATE.

​

WAY TO REMEBER: DISTURBING THE ECOSYSTEM. ​

​

​

Multiple Choice

NATURAL SELECTIONS THAT FAVOR BOTH EXTREMES PHENOTYPES AND AGAINST THE INTERMEDIATE.

• DIRECTIONAL SELECTION

• STABLIZING SELECTION

• DISTURB SELECTION

​EXAMPLE:​

​Producing 1000 cactus spines requires to much energy, but producing <500 leaves the plant open to predation.

Multiple Choice

Producing 1000 cactus spines requires to much energy, but producing <500 leaves the plant open to predation.

• DISTURB SELECTION

• SITUATIONAL SELECTION

• DIRECTIONAL SELECTION

​DIFFERENT TYPES OF SELECTIONS:

​DIRECTIONAL SELECTIONS: EXAMPLE OF NATURAL SELECTION THAT FAVORS IN ONE END OF A PHENOTYPIC SPECTRUM AND ACTS AGAINST ANOTHER; ONE EXTREME IS FAVOR THAN ANOTHER.

​

WAY TO REMEBER: A CHANGE IN THE ECOSYSTEM​

Multiple Choice

EXAMPLE OF NATURAL SELECTION THAT FAVORS IN ONE END OF A PHENOTYPIC SPECTRUM AND ACTS AGAINST ANOTHER; ONE EXTREME IS FAVOR THAN ANOTHER.

• DIRECTIONAL SELECTIONS

• DISTURB SELECTIONS

• STABLIZING SELECTIONS

EXAMPLE:

​Fish that produce 40,000+ eggs have greater fitness than fish produce less than this number.

Multiple Choice

Fish that produce 40,000+ eggs have greater fitness than fish produce less than this number.

• DIRECTIONAL SELECTIONS

• DISTURB SELECTIONS

• STABLIZING SELECTIONS

​DIFFERENT TYPES OF SELECTIONS:

​STABLIZING SELECTIONS: NATURAL SELECTION THAT FAVORS INTERMEDIATE PHENOTYPES RATHER THAN THE EXTREME PHENOTYPES.

​

WAY TO REMEBER: A BALANCE OF THE ECOSYSTEM.​

Multiple Choice

​STABLIZING SELECTIONS: NATURAL SELECTION THAT FAVORS INTERMEDIATE PHENOTYPES RATHER THAN THE EXTREME PHENOTYPES.

• DIRECTIONAL SELECTIONS

• DISTURB SELECTIONS

• STABLIZING SELECTIONS

​EXAMPLES:

​ASPEN TREES THAT ARE OVER 25M TEND TO BLOW OVER IN HIGH WINDS; ASPENS THAT ARE UNDER 15M DON’T GET ENOUGH SUN.

Multiple Choice

​ASPEN TREES THAT ARE OVER 25M TEND TO BLOW OVER IN HIGH WINDS; ASPENS THAT ARE UNDER 15M DON’T GET ENOUGH SUN.

• DIRECTIONAL SELECTIONS

• DISTURB SELECTIONS

• STABLIZING SELECTIONS

Multiple Choice

MATCH THE GRAPH WITH THE TERM OF THE DEFINITION.

• INDIVIDUALS WITH ALLELES FOR AN EXTREME TYPE ARE MORE LIKELY TO SURVIVE AND REPRODUCE.

• THE SELECTION PRESSURE FAVORS THE EXTREME PHENOTYPES, DIVIDING THE POPULATION INTO 2 DISTINCT GROUPS.

• INDIVIDUALS WITH INTERMIDIATE TRAITS ARE MORE LIKELY TO SURVIVE AND REPRODUCE

Multiple Choice

MATCH THE GRAPH WITH THE TERM OF THE DEFINITION.

• INDIVIDUALS WITH ALLELES FOR AN EXTREME TYPE ARE MORE LIKELY TO SURVIVE AND REPRODUCE.

• THE SELECTION PRESSURE FAVORS THE EXTREME PHENOTYPES, DIVIDING THE POPULATION INTO 2 DISTINCT GROUPS.

• INDIVIDUALS WITH INTERMIDIATE TRAITS ARE MORE LIKELY TO SURVIVE AND REPRODUCE

Multiple Choice

MATCH THE GRAPH WITH THE TERM OF THE DEFINITION.

• INDIVIDUALS WITH ALLELES FOR AN EXTREME TYPE ARE MORE LIKELY TO SURVIVE AND REPRODUCE.

• THE SELECTION PRESSURE FAVORS THE EXTREME PHENOTYPES, DIVIDING THE POPULATION INTO 2 DISTINCT GROUPS.

• INDIVIDUALS WITH INTERMIDIATE TRAITS ARE MORE LIKELY TO SURVIVE AND REPRODUCE

Multiple Choice

EXAMPLE: SOME BIRDS WITH VERY LARGE BEAKS HAVE EVOLVED.

WHAT IS THE BEST GRAPH THAT GOES ALONG WITH THIS EXAMPLE?

​GET READY WE ARE DOING A CHECK POINT!

Multiple Choice

NATURAL SELECTION ACTS DIRECTLY ON...

• BEHAVORIAL AND PHYSICAL

• MOTIONAL, KENETIC, OR STABLE.

• PHENOTYPES

Multiple Choice

AN ADAPTATION IS AN INHERITED CHARACTERISTIC THAT CAN BE...

• BEHAVORIAL OR PHYSICAL

• MOTIONAL, KENETIC AND STABLE.

• PHENOTYPES

Poll

THANKYOU FOR LEARNING THE CONTENT. HOW CONFIDENT ARE YOU LEARNING ABOUT EVOLUTION AND TYPES OF SELECTIONS?

• VERY CONFIDENT.

• SOMEWHAT CONFIDENT.

• SOMEWHAT UN-CONFIDENT

• VERY UN-CONFIDENT