prokaryotes achrea and protist Flashcards
Mitochondria HAVE what kind of DNA
circular
Gram-______ bacteria are more likely to be
antibiotic resistant
negative
polysaccharide or protein layer called a _______
covers many prokaryotes
capsule
what is exaptation
existing
structures take on new functions through
descent with modification
example of exptation
flagella in bacteria
what are some differnces between the DNA of Prokaryotic and eukaryotic (4)
-Prokaryotic less DNA than
eukaryotic
-prokayotic circular DNA
- prokaoytes have smaller rings of DNA called plasmids
- only eukar. have dna enclosed n a membrane
transduction
virus carries bacterial DNA from one bacteria to another
conjugation
two cells of different mating type exchange genetic material (think of line)
are archaea more closely realted to eukarya or bacteria
eukarya
what are types of archaea are there where do they live
- halophiles live in highly saline environments
- thermophiles thrive in very hot environments
- Methanogens live in swamps and marshes and produce methane as a waste product
are “Protists” monophyletic group
no paraphyletic group
what is paraphyletic group
a group with out a common ancestor
Monophyletic is
a group of related organisms that includes the common ancestor and all of its descendants
why is the Protist kingdom recognized
paraphyletic group
Animals, fungi, and plants evolved from
_____ ancestors
protist
