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Welcome to Biology class. This site will keep you updated on all work for Biology class.

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Types of Selection Worksheet Key

Types of Selection Worksheet                                                              Name__________Key___________________

 

I Can:

Identify the different types of natural selection and describe how a population will evolve over time.        

 

Read the following situations below and identify the 5 points of Darwin’s theory.

 

1)There are 2 types of worms:   worms that eat at night (nocturnal) and worms that eat during the day (diurnal).  The birds eat during the day and seem to be eating ONLY the diurnal worms.  The nocturnal worms are in their burrows during this time. Each spring when the worms reproduce, they have about 500 babies but only 100 of these 500 ever become old enough to reproduce.

 

  1. What worm has natural selection selected AGAINST? _nocturnal______ FOR? __diurnal_______

 

Darwin’s 5 points: Identify the 5 points in the scenario above.

Population has variations. ____birds that eat during the day________________________________

 

Some variations are favorable. _____worms that come out at day, survive_____________________

 

More offspring are produced than survive._____only 50 of the 500 survive to reproduce_______

 

Those that survive have favorable traits. ___burrowing during the day______________________

 

A population will change over time. __a higher frequency of daytime worms will survive___________

 

2) There are 3 types of polar bears: ones with thick coats, ones with thin coats and ones with medium coats.  It is fall, soon to be winter.  The temperatures are dropping rapidly and the bears must be kept warm, or they will freeze to death.  Many of the bears have had ~2 cubs each but due to the extreme temperatures, many mothers only have one cub left.

 

  1. What bear will natural selection select AGAINST? ___thick____ FOR? ___thin______________

 

Darwin’s 5 points: Identify the 5 points in the scenario above.

Population has variations. _________different temperatures______________________

 

Some variations are favorable. ______thinner coats_________________________

 

More offspring are produced than survive.__mothers have 5 cubs and 2 survive_______________

 

Those that survive have favorable traits. ___thinner coats___________________________

 

A population will change over time. ________will see a higher frequency of thinner coats_____

 

 

 

3) Bob believes that giraffes have long necks because they have stretched their necks to try and

     reach food that is high in trees.  Since the parent had stretched its neck, it passed the long neck

     on to its offspring.

 

     Ryan believes that giraffes have long necks because the ones with long necks were able to

     reach the food, and those with short necks could not and died. The long necked giraffes 

     reproduced, and soon all of the giraffes had long necks.

 

  1. Who thinks like Lamarck? Why?___Ryan – aquiring traits _____________________

 

  1. Who thinks like Darwin? Why?_____Bob- no traits are passed on__________

 

 

 

  1. What is happening to the relative frequency of the lighter fur color allele?

increasing

  1. What is happening to the relative frequency of the darker fur color allele?

decreasing

  1. Is the darker color mutation favorable or unfavorable?

unfavorable

  1. What may have caused the change in the population shown in the table?

Lighter environment

  1. Predict how the mouse population will look after 40 generations. How were you able to make this prediction? All white

 

 

 

 

 

 

 

  1. Label the three types of natural selection illustrated below:

 

 

 

 

 

 

 

 

 

 

                  Directional                                             stabilizing                                     disruptive

 

  1. What type of individuals in the population are represented by the 2 ends of the bell curve?

 

directional

 

 

 

  1. Starlings produce an average of five eggs in each clutch. If there are more than five, the parents

    cannot adequately feed the young. If there are fewer than five, predators may destroy the entire

    clutch. This is an example of

  1. disruptive selection. b. stabilizing selection.
  2. directional selection. d. none of the above.

 

  1. The occurrence of large or small beak sizes among seed crackers in the absence of medium sized

     beaks is an example of

  1. directional selection. b. stabilizing selection.
  2. disruptive selection. d. none of the above.

 

  1. A scientist measures the circumference of acorns in a population of oak trees and discovers that the

    most common circumference is 2 cm. What would you expect the most common circumference(s) to be

    after 10 generations of stabilizing selection?

  1. 2 cm b. greater than 2 cm or less than 2 cm
  2. greater than 2 cm and less than 2 cm d. can’t tell from the information given

 

  1. Refer to question 8, but this time answer what you would expect after 10 generations of disruptive

    selection.

  1. 2 cm b. greater than 2 cm or less than 2 cm
  2. greater than 2 cm and less than 2 cm d. can’t tell from the information given

 

  1. Refer to question 8, but this time answer what you would expect after 10 generations of directional selection.
  2. 2 cm b. greater than 2 cm or less than 2 cm
  3. greater than 2 cm and less than 2 cm d. can’t tell from the information given

Each of the following is an example of stabilizing, disruptive, or directional selection.  Choose the correct term for each example,  explain why it fits that category and sketch the appropriate graph.

  1. Larger squirrels can carry larger acorns to their burrows, and they outcompete smaller squirrels when acorn supplies are limited.  _stabilizing_______________

 

 

 

 

  1. Spotted brown-and-white butterflies blend into lichen-covered tree bark, making it difficult for predators to see them, while solid brown and solid white butterflies are easier to see and get eaten. _____directional___________

 

 

 

 

  1. Panthers with teeth that are too short have difficulty capturing prey, while panthers with teeth that are too long have difficulty chewing their food. ___disruptive_____________

 

 

 

 

  1. In a lake in South Africa, guppies are eaten by the pike fish, and the larger the guppy, the more difficulty it has escaping its pike fish predator. ___stabilizing_____________

 

 

 

 

  1. The rocks at the bottom of a stream are either black or white. Snails that live on these rocks are a range of color from solid black to gray to solid white.  A local freshwater fish loves to munch on these snails, but it cannot see the solid black or solid white snails when the snails are on matching rocks.  Grey does not blend into either rock color and is much easier to see.  ___stabilizing_____

 

 

 

 

  1. Human babies usually do not survive if they are born under 4 pounds because their organs are too small to work properly; they cannot be born if they are too big because the mother would not be able to give birth without dying. ____disruptive____________
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WEDNESDAY, NOVEMBER 24, 2021

• Last call! Northern Lights Art and Literary Magazine is now accepting submissions for their first blog of the year: IMAGINATION! Submit your themed poetry and art to northernlights@nhvweb.net (northern – lights – at – NHVWEB – dot – net) and use your imagination!

• The weight room will be closed after school today..

• Are you interested in Sports Management, Sports Media, or Statistics? Then this opportunity is for you!! The North Hunterdon Wrestling Team is looking for students who would be interested in working as Team Managers and Statisticians during this upcoming season. If you are interested or would like to learn more, please contact either Coach Hrunka or Coach Flesche.

• The swim team is looking for a couple of students to be the team score keepers this season, anyone interested please see or email, Mr. Schuetz or Mrs. Baratta for details

• Have you seen our signs around the school? The yearbook staff is hosting a doodle competition for this year’s book. Submit your doodles related to the topics of North, Sports, Student life, student hobbies and academics for your chance to have your doodle featured on the cover and throughout the book! Scan the QR code on the flyers around school to enter by December 3. A winner for each category will be announced on December 10. Winners will receive a coupon for $10 off their purchase of this year’s book! Please outline your doodle in Sharpie before uploading your drawings. Any questions, please reach out to Ms. Lindaberry. We can’t wait to see your entries!

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TUESDAY, NOVEMBER 1, 2021

• Attention all girls interested in participating in Winter Track & Field this year. There will be a meeting today at 2:40PM in Room 135B (the Junior Health Room). If you cannot make the meeting or have questions, please notify Coach Walsh directly by email or in person.

• Signups for boys and girls wrestling are now open in ASPEN. Be sure to sign up by November 6th! Any questions see Coach Hrunka or Coach Flesche

• Ski Club Bus money is due November 12th. Please see Google Classroom for payment information.

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MONDAY, OCTOBER 25, 2021

• There will be a brief interest meeting for Boys Winter Track today at 2:30 in Room 014. Anyone interested in joining Boys Winter Track should attend.

• Intermural basketball is cancelled today.

For Spirt Week tomorrow is anything but a Backpack – Use anything but a backpack to carry around your stuff, extra points for creativity. Wednesday -Country vs Country Club – Pick to either dress casually/like a cowboy or dress up fancy/preppy! Thursday: Halloween & Costumes – Show up in costume to celebrate the holiday. No weapons & no full-face masks (regular masks are still required) and no face painting. Friday White Out dress in all white to show your support for our North football team!

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WEDNESDAY, SEPTEMBER 15, 2021

• Correction on my announcement yesterday, the girls’ interest meeting for wrestling is next Wednesday, September 22, after school for anyone interesting in learning about girls wrestling here at North. The meeting will be held in the freshmen health room. Any questions see Mr. Hrunka or Mr. Flesche.

• Unified Soccer will meet today at 2:30 in room 113 for the first official practice. Email Mrs. Manner with questions.

• The Key Club is collecting items for Ronald McDonald house and Philadelphia Children’s Hospital for the month of September for Childhood Cancer Awareness. We are collecting items such as individually wrapped snacks, clothing detergent pods, and toys for all ages. There is a box located by the theater and one by the main entrance. We will also be collecting at the September 17 Football game.

• Amnesty International is currently collecting necessities for Afghan refugees at Fort Dix. Items will be collected this week, and can be dropped off at the Rt. 31 and Theatre entrances as well as all social studies classrooms. For information on what items to donate, check your email as well as the school for posted fliers.

• The Model United Nations club will be holding its second information meeting today after school in room 237. If you have any questions please contact Mrs. Niznik.

• Student Council will meet today instead of Thursday due to the Holiday. They will meet in room 151-A at 2:30. All new members are welcome!

• The first meeting of the Spanish Honor Society will be on Monday, September 20th at 2:30pm in Room 220. All current members should attend. Any juniors or seniors currently enrolled in Spanish that have an interest in becoming a member can join us as well to find out more information.

• Do you like to help others? Do you like food, culture, traditions, languages and music? Come to the first ESL Buddies Club today at 2:30PM in Room 224. Google Classroom code is outside of 224. See Mrs. Naples with any questions. See you there!

• Intramural basketball is starting on Monday, September 20 at 2:30 in the main gym. Contact Mr. Soltis with any questions

• The library will be closed all day for testing. Please do not come to the library from class, study hall, or during lunch today
In sports news, congratulations to the boys’ soccer team for their win over Phillipsburg, 6-3. The girls’ soccer team also defeated Phillipsburg, 7-0. Girls’ tennis beat Watchung Hills, 3-2, and girls’ volleyball defeated Montgomery, 2-0.






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MONDAY, SEPTEMBER 13, 2021

• Show Choir is looking for a beatboxer to perform with them in their concerts! Anyone who has experience, talent, or interest in beatboxing should contact Mrs. Cudworth or any Music Department faculty member.

• The National Art Honor Society will be having a mandatory meeting today in room 132 right after school.

• Habitat for Humanity will be having its first meeting today in room 232 after school at 2:30. All are welcome to attend.

• Attention ladies, there will be an interest meeting Wednesday, September 22 after school for anyone interesting in learning about girls wrestling here at North. The meeting will be held in the freshmen health room. Any questions see Mr. Hrunka or Mr. Flesche.

• The English Department is offering SAT Prep for all students. Classes begin tomorrow from 3:15-5:00pm. Students interested in sessions should meet in the English basement, room 016.

• Unified Soccer will meet on Wednesday, September 15 at 2:30 in room 113 for the first official practice. If you are interested in participating, it’s not too late. Email Mrs. Manner ASAP!

• The Key Club is collecting items for Ronald McDonald house and Philadelphia Children’s Hospital for the month of September for Childhood Cancer Awareness. We are collecting items such as individually wrapped snacks, clothing detergent pods, and toys for all ages. There is a box located by the theater and one by the main entrance. We will also be collecting at the September 17 Football game.


• Amnesty International is currently collecting necessities for Afghan refugees at Fort Dix. Items will be collected this week, September 13th through 17th, and can be dropped off at the Rt. 31 and Theatre entrances as well as all social studies classrooms. For information on what items to donate, check your email as well as the school for posted fliers.

• The Model United Nations club will be holding its first information meeting today after school in room 237. If you cannot make this meeting we will be holding a second information meeting on Wednesday, Sept. 15th after school in room 237. If you have any questions please contact Mrs. Niznik.

• Student Council will meet on Wednesday, Sept 15th instead of Thursday due to the Holiday. They will meet in room 151-A at 2:30. All new members are welcome!

• The first meeting of the Spanish Honor Society will be on Monday, September 20th at 2:30pm in Room 220. All current members should attend. Any juniors or seniors currently enrolled in Spanish that have an interest in becoming a member can join us as well to find out more information.

• Do you like to help others? Do you like food, culture, traditions, languages and music? Come to the first ESL Buddies Club on Wednesday, September 15 at 2:30PM in Room 224. Google Classroom code is outside of 224. See Mrs. Naples with any questions. See you there!




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FRIDAY, SEPTEMBER 10, 2021

• Show Choir is looking for a beatboxer to perform with them in their concerts! Anyone who has experience, talent, or interest in beatboxing should contact Mrs. Cudworth or any Music Department faculty member.

• Auditions for North’s select choirs are happening in September! Sign up for a timeslot on the door outside Room 131, and make sure to get a packet from Mrs. Cudworth or Mr. Hopta. If you have any questions, feel free to stop by and ask, or send these teachers an email. (9/15)

• The National Art Honor Society will be having a mandatory meeting on September 13 also in room 132 right after school.

• Audition for the Fall Show! The North Hunterdon Theater Organization will be performing Night Chills in November. Sign up on the board outside the girl’s dressing room to audition today after school and grab an audition packet by emailing Mrs. Hopta at mhopta@nhvweb.net

• Habitat for Humanity will be having its first meeting on Monday, September 13th in room 232 after school at 2:30. All are welcome to attend.

• Attention ladies, there will be an interest meeting Wednesday 9/22 after school for anyone interesting in learning about girls wrestling here at North. The meeting will be held in the freshmen health room. Any questions see Mr. Hrunka or Mr. Flesche.

• The English Department is offering SAT Prep for all students. Classes begin Tuesday, 9/14, and will run from 3:15-5:00. Students interested in sessions should meet in the English basement, room 016.

• Unified Soccer will meet on Wednesday, September 15 at 2:30 in room 113 for the first official practice. If you are interested in participating, it’s not too late. Email Mrs. Manner ASAP!

• The Key Club is collecting items for Ronald McDonald house and Philadelphia Children’s Hospital for the month of September for Childhood Cancer Awareness. We are collecting items such as individually wrapped snacks, clothing detergent pods, and toys for all ages. There is a box located by the theater and one by the main entrance. We will also be collecting at the September 17 Football game.

• Congratulations to the girls’ volleyball team for their win over Ridge, 2-1.

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WEDNESDAY, SEPTEMBER 1, 2021

Good morning North. Today is Wednesday, September 1, 2021, an A day. Please rise for the pledge of allegiance.

• There will be a Jazz Ensemble interest meeting, today, after school at 2:30 in the band room. If you are interested in auditioning, please join us. If you have any questions, please talk to or email Mr. Boccuti. (bow-C00-dee)

• Attention singers: Welcome back to choir! Auditions for North’s select choirs – which include Chamber Choir, Madrigal Singers, and Show Choir, are happening in September! Sign up for a timeslot on the door outside Room 131 – this is the Choir Room, and make sure to get a packet from Mrs. Cudworth or Mr. Hopta. If you have any questions, feel free to stop by and ask, or send these teachers an email. (9/10)

• There will be a Fall Play interest meeting today, at 2:30 in the theater. Please contact Ms. Cavo if you are unable to attend but would like more information.

• Reminder to students and staff: All library materials are due back today.

• Gaming club’s first meeting will be today 2:30 in room 125. All those who want to know more are invited to attend. See Mr. Mckinnon for details. (9/1)

• Do you like the challenge to create and design? Do you like the challenge of taking on Voorhees in design projects? Engineering clubs first meeting will be tomorrow, September 2 at 2:30 in room 125. See Mr. Mckinnon for details. (9/2)

• The National Art Honor Society will have two interest meetings – one tomorrow and the other on September 9 in room 132 right after school. A mandatory meeting will be held on September 13 also in room 132 right after school.

• Today is Picture Day in the Theater. All PE/Health classes will report to the Theater during their class time. If you do not have a schedule PE or Health class, please report to the Theater during your Directed Study period for school photos.

• The fall sessions of SAT Math Prep run on Thursdays, starting on September 9, in room 207. Anyone planning on taking the SAT in October, November, or December should plan on attending these free sessions. Winter and Spring sessions will be available in the future. More information can be found at tinyurl.com/nhmathsat.


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TUESDAY, AUGUST 31, 2021

A reminder to Students: Heads should be uncovered at all times. Masks are required to be worn in the building covering your nose and mouth. Please review the Dress Code found on the North Hunterdon H.S. website under the Parents tab and then click on Code of Conduct.

ATTENTION ALL STUDENTS: YOU MUST HAVE YOUR STUDENT ID ON YOU AT ALL TIMES. YOU WILL NEED IT WHEN YOU GO TO THE MEDIA CENTER, GUIDANCE OFFICE, Child Study Team AND ANY OTHER LAB WHERE IT IS REQUIRED.

Attention singers: Welcome back to choir! Auditions for North’s select choirs – which include Chamber Choir, Madrigal Singers, and Show Choir, are happening in September! Sign up for a timeslot on the door outside Room 131, and make sure to get a packet from Mrs. Cudworth or Mr. Hopta. If you have any questions, stop by and ask, or send these teachers an email.

There will be a Fall Play interest meeting on Wednesday, September 1, at 2:30 in the theater. Please contact Ms. Cavo if you are unable to attend but would like more information.


Gaming club’s first meeting will be Wednesday, September 1 at 2:30 in room 125. All those who want to know more are invited to attend. See Mr. Mckinnon for details.

Do you like the challenge to create and design? Do you like the challenge of taking on Voorhees in design projects? Engineering clubs first meeting will be Thursday, September 2 at 2:30 in room 125. See Mr. Mckinnon for details.

The National Art Honor Society will have two interest meetings – one on September 2 and the other on September 9 in room 134 right after school. A mandatory meeting will be held on September 13 also in room 134 right after school.

North Hunterdon High School is looking to start a new boys volleyball program this spring. This interest meeting is open to all students and no immediate commitment is necessary. Any questions, please see Coach Hissner.

There will be a Jazz Ensemble interest meeting, this Wednesday, September 1st, after school at 2:30 in the band room. If you are interested in auditioning, please join us. If you have any questions, please talk to or email Mr. Boccuti.

Student Council will meet this Thursday, Sept 2nd in room 151-A at 2:30. The meeting will be brief, so please stop by if you can! New members are welcome!

The Spanish club’s first meeting tomorrow, September 1, in room 221 right after school please.



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