Scientists believe that mitochondria may have evolved from bacteria because ____
a. they both have cristae membranes
b. mitochondria have their own DNA
c. their shapes and sizes are exactly the same
d. both are surrounded by a cell wall
e. both can live independently
ANSWER: b
You might also like to view...
Fishing gear that modifies the environment can lead to
a. increased complexity of the trophic food web. b. loss of necessary habitat for target and non-target species. c. improvement in habitat productivity. d. increased species diversity in the habitat. e. Fishing gear has been improved to prevent habitat problems.
In fungal reproduction, sexual fusion refers to
a. the combining of cells of opposite mating types. b. fusion between spores of different mating types. c. fusion between hyphae from fungi of different mating types. d. fusion between haploid nuclei in a dikaryon. e. the dominance of the haploid phase in the fungal life cycle.
Why are Koch's postulates important to microbiology?
A) They provide a way to select the most effective concentration of antibiotic to use for a patient. B) They enable us to characterize the species of the infectious disease whether it is a bacteria, virus, or fungi. C) They explain how a particular disease produces specified signs in a patient. D) They allowed us to identify the causative pathogens of many infectious diseases. E) They demonstrate the preferred route of infection for a particular disease.
Red blood cells have specific carbohydrates on their surface that are called ___.
What will be an ideal response?