Seed cracker birds have either large beaks or small beaks. They do not have medium sized beaks because medium sized beaks do not allow for adequate cracking of seeds.

A scientist measures the circumference of acorns in a population of oak trees and

discovers that the most common circumference is 2 cm. There are very few acorns with circumferences of 3 cm or

circumferences of 1 cm. Only the 2 cm circumference acorns survive.

_A population of Madagascar hissing cockroaches lives in a woodpile. The

cockroaches are eaten by lizards. Because the lizards have small heads, the lizards are unable to eat the very largest

adult cockroaches, and instead prey upon small and medium sized adults. Over time, only the large headed lizards

survive.

Female birds that lay close to the optimum number of eggs have the most surviving offspring. Those that lay fewer or more eggs have lower relative fitness.

A population of birds with various size beaks eats seeds. Small seeds can be eaten

by birds with small beaks. Larger, thicker seeds can only be eaten by birds with larger, thicker beaks. During a

drought, only large thick seeds exist so only the large, thick-beaked birds survive.

Black rabbits (BB) and white rabbits (bb) are both able to survive because they can camouflage into the white and black rocks in their environment. However, the intermediate gray rabbits (Bb) do not survive. This results in only white and black rabbits.

Small lizards have difficulty defending territories so they end up dying out. Large lizards are more likely to be preyed upon by owls. Over time, only medium sized lizards end up surviving.

Women often have complications during labor while giving birth to very large babies, whereas very small babies tend to be underdeveloped. As a result, medium sized babies are the ones that end up surviving to adulthood.

NAME THAT CURVE!!

NAME THAT CURVE!!

NAME THAT CURVE!!

Which of these is a condition that must be met for Hardy-Weinberg equilibrium?

If a population is suffering from genetic drift, which of the Hardy-Weinberg conditions is not being met?

Dog breeding is an example of

If all 5 Hardy-Weinberg assumptions are true, a population is said to be in genetic equilibrium. This means

The movement of alleles from one population to another is called

Small populations are more prone to genetic drift than large populations.

Why are advantageous traits more likely to be passed onto offspring?

What is the human most closely related to?

Which group of animals on this tree are most closely related to birds?

Where is the alligator and T. rex's common ancestor?

What is the purpose of a cladogram?

What do both the squirrel and lion have in common that the other animals do not?

What do amphibians, birds, prosimians and humans all have in common? Check all that apply.

Which letter represents the most recent common ancestor of sponges and mushrooms?

Which trait should go where A is on the cladogram?

What is the common ancestor of Letters A, B, C, D, E?

Using the cladogram, which two organisms are more closely related Lizards and Newts OR Lamreys and Sharks

Which trait(s) do conifers have?

According to this phylogenetic tree, which creature is the least related out of all pictured?

According to this cladogram, sharks are MOST closely related to which organism?

Who is most closely related to Taxidea taxus?

On the cladogram, which organism is the closest relative of the parrot?

All the animals to the right of the salamander would have the common characteristic of...

In a phylogenetic tree, the branching points represent common ancestors.

Each node on a cladogram represents...

Which organism is the most distantly related to all the others?

Genetic variation can arise from a random change in the DNA of a gene. This change is called a(n) ___.