BIO 102 Quizzes 1 & 2 Flashcards
What is the purpose of an endospore?
To help bacteria survive in a harsh environment
What are the types of sympatric speciations?
Ecological, behavioral, temporal, mechanical and gametic
Why is the term reptile not cladistically correct?
It doesn’t include all descendants of the common ancestor
Derived characteristics are:
Advanced characteristics that some in a clade possess
A prokaryote with a spherical shape is called?
coccus
How to tell a Prokaryote/Eukaryote from a virus?
Metabolism
How to classify an unknown bacteria
shape, growth pattern and gram staining
Why do bacteria transfer plasmids? How does this help them?
Passing DNA through conjugation helps the bacteria adapt to different environments and evolve.
What are the characteristics of most protists?
They’re Eukarya, so they will have a membrane-bound nucleus, multiple chromosomes, and mitochondria. No cilia
What is so interesting about Dictyostelium?
Unique cell signaling
Explain the process scientists think Prokaryotes underwent to become Eukaryotes
Endosymbiotic theory: a large prokaryote engulfed smaller ones and developed a mutualistic symbiotic relationship. The small produced energy, while the other protection. These eventually evolved into organelles
Two examples of a mutualistic symbiotic relationship involving protists. What do they get in return?
Diplomonads & Termites - former breaks down cellulose and provides energy, while the latter provides protection and the wood.
Dinoflagellates & coral - former provides energy through photosynthesis, and the other provides safe habitat with sunshine
Gene sequencing is important in protists because…
It has enabled us to be more accurate with protest evolution
What protists are most primitive?
Parabaslalids and Diplomonads
Euglenoids and Kinetoplastids are very alike because of what structure?
flagella
