<span>To verify the purity of a
colony, a number of steps could be adopted. Pick the colony and dissolve it in sterile
water (approximately 5ml), streak in media again and incubate. Observe if it
produces pure colonies of the chosen organisms and if not, repeat the procedure
until pure colonies are produced. Additionally, one could perform additional tests
that categorize bacteria such as Gram staining. </span>
Answer:
This region of the United States has been tectonically active since the super continent Pangea broke up roughly 200 million years ago, and in large part because it is close to the western boundary of the North American plate. Since the formation of the San Andreas Fault system 25-30 million years ago, the juxtaposition of the Pacific and North American plates has formed many faults in California that accommodate lateral motion between the plates. North and east of California, the Basin and Range province between the Wasatch Mountains in Utah and the Sierra Nevada Mountains in eastern California is actively spreading and stretching westward.
MARK ME BRAINLIEST PLSSSSSSSSS
I believe the answer would be "The animals on the Galápagos Islands were recognizable as similar to their counterparts in other regions of the world, but had a range of noticeable differences from those counterparts. Many animals had small variations from island to island."
Answer:
Reproduction is vital to the success of a species.
explain:
For a species to survive it must be able to produce more offspring than it loses though old age, disease, and predication. Living things can reproduce in different ways, asexual reproduction and sexual reproduction.
Answer:
Ferns and conifers evolve in Paleozoic era