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

Fill in the Blank

Darwin called the ability of an organism to survive and reproduce in its environment.

Fill in the Blank

IN HUMANS, THE PELVIS AND THE FEMUR, OR THINGBONE, ARE INVOLVED IN WALKING. IN WHALES, THE PELVIS AND FEMUR ARE _________ STRUCTURES.

Fill in the Blank

A HUMANS HAND AND A WHALE’S FIN HAVE THE SAME BONES, THOUGH THEY ARE ALTERED FOR DIFFERENT PURPOSES. IT IS POSSIBLE THAT THESE ORGANISM HAVE A COMMON ANCESTORS. THEIR SIMILAR STRUCTURES ARE CALLED __________ STRUCTURES.

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