Rocks and Dead Things
Embryonic Development & Comparative Anatomy
Mechanism of Change
Heredity
Mixed Bag
100
The law that states rocks that cut across are younger than the rocks that they cut through is...
Law of Cross Cutting Relationships
100
What is a vestigial organ?
A body part that serves no purpose in an organism's survival
100
Which mechanism of change produces guaranteed desired results?
Genetic engineering
100
Write an example of an allele
Example: T = tall, t = short
100
Which two organisms are the most related?
Dogs and Cats
200
Name the oldest rock layer
H
200
The image below is an example of which type of structures?
Homologous Structures
200
Name the mechanism: The population of brown beetles increased and the green beetles decreased after their habitat became grassy.
Natural Selection
200
What is a phenotype?
Physical trait
200
Name one factor of natural selection.
Overpopulation, competition, variation, selection
300
Which is not an index fossil?
Gastropod, crinoid, coral, trilobite
300
Which type of structure is not from a common ancestor?
Analogous
300
How are artificial and natural selection different?
Artificial allows you to choose desired traits to flourish, while natural is based on chance and/or survivability of populations
300
What type of mutation is shown?
Deletion
300
What is a fossil?
Impression or preserved remains of an organism in a rock
400
How can you determine the absolute age of layer C
Radioactive Dating
400
Give an example of an analogous structure.
Some answers...
Ant leg - horse leg
Bird wing - insect wing
Fish flipper - dolphin flipper
400
The existence of most dog breeds is due to what mechanism of change?
Artificial selection
400
Describe what type of genotype the parent plants have.
Heterozygous
400
Why do alleles come in pairs?
You get one from each parent
500
What was main cause of extinction for many time periods?
Climate change
500
What is the main reason that the embryos of all of these are similar in the early stages?
They are all vertebrates - they have a common ancestor
500
Wooly mammoths went extinct after the Ice Age, when things started to melt. Why did they go extinct?
Their adaptation of thick hair was not suitable for their environment, so they died.
500
Define mutation
Permanent change in DNA
500
What is the purpose of a cladogram
To show relations between different organisms based on the absence or presence of certain traits