Class Agenda Week of 21-25 March 2011

Name:______Date: ______Period:_____

Agenda Week of 21 March–25 March2011 Unit 5Evolution Exam 3/25/11

Class website:

Monday 3/21/11

-Endocrine System – Read and Study Guide

HW: Finish Ch 35 Study Guide

Tuesday 3/22/11

-Nervous System Overview Ch 33 ppt

-Collect Digestive/Endocrine Ch 35 SG

HW: Nervous System SG due Mon 3/28

Wednesday 3/23/11 –LateStart

-practice questions and ppt Review

Thursday 3/24/11–

-ppt Review

HW: Review Materials for EXAM

Friday 3/25/11–

-Exam

HW: Nervous System SG due Mon 3/28

Parents/Guardian –

I have reviewed my child’s activities and homework for the week of 3/21/11-3/25/11.

I understand that is important for me to make sure that my child is prepared for theexam on 3/25/11, and has completed all assignments this week.

I understand if my child needs to retake a quiz that the original quiz with corrected answers, signed by a parent, must be turned in when the quiz is retaken on Thursdayafterschool.

Wednesday is the last day for late work from Unit 5 Evolution.

Parent/Guardian Printed NameSignatureDate

Bell Ringers: Week of 21Mar – 25 Mar 2011

Monday – If a mutation introduces a new skin color in a lizard population, which factor might determine whether the frequency of the new allele will increase?

Explain the meaning ofallele frequency.

Tuesday - What are all the genotypes for the following phenotypes?

Fully colored coat:

Light grey coat:

Himalayan coat:

Albino coat:

Which phenotype will be more likely to be eaten by a predator and why do you think so?

Which phenotype and genotype will be least likely to survive and why?

Wednesday – A paleontologist found this fossil. The paleontologist could say that this organism was a ______a) mammal b) vertebrate c) plant d) protist

Thursday

Bufo woodhousei and Bufo cognatus are two closely related species of toads. In areas where their ranges overlap, the toads will remain separate species if they —

a)* breed in different seasons

b) have different color patterns

c) eat different types of insects

d) feed at different times of the day

Friday During the fall reproductive season, the belly of a male brook trout becomes bright orange. The orange belly provides some camouflage and helps attract females. This trait evolved in brook trout because, compared to males with pale bellies, males with bright orange bellies are more likely to ______

A. live in good habitats. B. be eaten by predators.

C. mate with other species of fish. D. fertilize eggs to produce offspring.

Name______Date______Period______

1. According to this information, which group demonstrated the greatest biodiversity during the Cretaceous period?

1. According to this information which is the least diverse group of organisms in the Jurassic Period?
2. According to this information which group remained relatively unchanged since it first appeared in the fossil record?

4. The ozone layer protects Earth by absorbing

A cosmic dust

B solar heat

C* ultraviolet radiation

D white-light frequencies

5. Which of these best illustrates natural selection?

A An organism with favorable genetic variations will tend to survive and breed successfully.

B A population monopolizes all of the resources in its habitat, forcing other species to migrate.

C A community whose members work together utilizes all existing resources and migratory routes.

D The largest organisms in a species receive the only breeding opportunities.

6. A small population of chimpanzees lives in a habitat that undergoes no changes for a long period. How will genetic drift probably affect this population?

A It will accelerate the appearance of new traits.

B It will promote the survival of chimpanzees with beneficial traits.

C It will increase the number of alleles for specific traits.

D It will reduce genetic diversity.

7. A species of finch has been studied on one of the geographically isolated Galapagos Islands for many years. Since the island is small, the lineage of every bird for several generations is known. This allows a family tree of each bird to be developed. Some family groups have survived and others have died out. The groups that survive probably have

A interbred with other species.

B inherited some advantageous variations.

C found new places on the island to live.

D been attacked by more predators.

8. A single species of squirrel evolved over time into two species, each on opposite sides of the Grand Canyon. This change was most likely due to

A higher mutation rates on one side.B low genetic diversity in the initial population.

C the isolation of the two groups.D differences in reproductive rates.

9. A small portion of a population that is geographically isolated from the rest of the population runs the risk of decreased

A genetic drift.B mutation rate.C natural selection.D genetic variation.

10. Fossil evidence suggests that a number of members of one fish species from an ancient lake in Death Valley, California, became several isolated species. Each of these new species lived in a different pond. Which of the following best explains the cause of this speciation?

A episodic isolation B temporal isolation C geographic isolationD behavioral isolation

11.A genetic disorder due to a recessive allele (a) is lethal in homozygous individuals (aa), whereas heterozygous individuals (Aa) have no symptoms. Based on this information, which of the following is likely to result?

A The disorder will quickly be eliminated since no recessive homozygotes will survive to reproduce.

B The disorder will be maintained in the population through the reproduction of heterozygotes.

C Only homozygous dominant (AA) individuals will survive.

D The prevalence of the disorder will increase over time.

12. Which statement below about gene pools is typically true?

A They contain only dominant alleles.

B They belong to two or more interbreeding species.

C They contain the possible alleles for each inheritable trait in a population.

D The relative frequencies of the alleles never change.