Tree
What is a phylogenetic tree?
It is a diagram of the evolutionary relationships between organisms.
Name one species found on the planet
Variety of answers
What is the significance of Darwin and the finches?
Darwin studied the finches and the first to realize that the finches on the Galapagos islands were similar but different species- they came from a common ancestor
List 3 important features to include on a graph
title
labels
axis name
use a ruler
key if needed
Are all our traits dominant or recessive? Give an example.
No- variety of examples.
Skin color, eye color, hair type, height, etc.
What do the nodes on the bottom of the branches represent?
Trait/characteristic that is shared by the organisms
Donkeys and Zebras can have offspring. Are they the same species?
No
A cheetah is the quickest land animal on our planet for its size. Is this is most fit animal on earth? Why or why not?
It is fit only for where it lives. It would not survive in the arctic (too cold)
What is the difference between a line and bar graph?
Line graph shows change over time
Bar graph shows data of related data
How do we get genetic variation from meiosis?
Crossing over, chromosomes not separating correctly
Which organism is most closely related to the Ostrich?
How do you know?
Hawks and other birds
They share the feather trait
Define speciation
The formation of new species
What does it mean to be fit for your environment?
Your traits allow you to survive and reproduce
What is a prediction?
A statement about the future using evidence
Why is photosynthesis considered the most important reaction on Earth?
Plants are autotrophs and at the beginning of the food web for most life on earth.
How many of the organisms shown share the tetrapod limb characteristic?
6
There are two types of birds that look very similar. After watching them for many weeks, you notice that the female bird will only reproduce with a male with a particular song. She ignores all other calls, even the birds that look very similar! What kind of isolation is this?
Behavioral isolation
Define evolution
The genetic change of a population over time
What is a hypothesis? (Why would you create a hypothesis)
A hypothesis is an explanation of a phenomenon based on research that can be tested for further explanation.
What is the job of the cell membrane?
The cell membrane only lets certain things in and out of the cell
Yes, according to the tree shown they all have a common ancestor
Define reproductive isolation and give one example
The inability of a species to breed successfully with related species due to geographical, behavioral, physiological, or genetic barriers or differences
Example: There are 13 species of finches- they live in different areas on earth (geographic isolation)
How does evolution happen?
Change in an organism's genes resulting in that individual surviving and reproducing. Over time, the organisms with this trait survived and reproduced.
What is the difference between independent and dependent variables in a scientific experiment?
Independent is the variable that you can change
Dependent variable is the variable that changes in relation to the effect of the IV
What are two important characteristics of water that make it important to living things.
adhesion- water attracted to something else
universal solvent-can dissolve most substances
density- solid is less dense than the liquid
high specific heat- it takes a while for the water to heat up and cool down