Download File

BIOS 1030. HANNAH RECKMAN. WEEK 2. SI SESSION 1.
What appeared on earth after each of the following number of years?
1) 4.6 billion years ago: ____________________
2) 3.8 billion years ago:____________________
3) 1.7 billion years ago:____________________
4) A little over 1 billion years ago:____________
Short Answer:
5) What is the smallest unit of life?
6) Around how many years ago did the first human ancestors appear on our planet?
7) Around how many years ago did the first modern humans appear?
8) Circle all of the following that are signs of life:
a) Made up of cells
a) Made up of atoms
b) Maintaining a constant internal state
c) Being able to make energy from food or sunlight
d) Has only DNA
e) Has DNA and RNA
f) Evolves
9) Fill in the table with the following characteristics:
1-Do they have a nucleus? 2-Where do they keep DNA? 3- Size 4- Describe their
organelles 5- Single celled or multi-cellular?
Prokaryotic Cells
Eukaryotic Cells
10) What is the most INCLUSIVE level of the taxonomy system?
11) What about the most EXCLUSIVE level?
12) Which of the following is more exclusive: Phylum, or Genus?
13) Properly write what humans are called, using binomial nomenclature:
BIOS 1030. HANNAH RECKMAN. WEEK 2. SI SESSION 1.
14) How many Domains are there? What are they called?
15) Write whether each domain is either eukaryotic, or prokaryotic:
16) Are there any Archaeans that cause diseases in us? What is unique about this domain?
16) Fill in this table of each type of eukaryote with the following characteristics: 1—Single celled
or multicellular? 2- How do they good food? 3- Do they have a cell wall?
Protista
Fungi
Plants
Animals
17) Give an example of a random trait Vs. a non-random trait that we inherit:
18) Write and describe the 3 requirements for natural selection to occur:
19) Match each of these definitions to the correct term:
a) How reproductively successful you are.
b) Environmental factors that allow organisms with better adaptations to be more fit.
c) A change over time in genetics.
d) A large scale process that can drive evolution.
e) A trait that allows you an organism to survive and better reproduce in a specific
environment.
f) Genetics changing enough so that a new species is actually created.
g) Individuals that can mate and produce together.
Terms: Speciation, Evolution, Adaptation, Selective Pressures, Species, Evolutionary Fitness,
Natural Selection.
20) Define each of these terms:
AtomElectron-
ProtonIon-
20) What does the pH scale measure?
21) Draw and label a brief rendition of the pH scale:
NeutronMolecule-