Answer:
option a. streak, pour
Explanation:
The best method to isolate single bacterial colonies is the "streak-plating" method.
The "streak-plate" procedure is used to isolate pure cultures of bacteria or also colonies, from mixed populations by mechanical separation. Millions of cells form a colony, they grow in a cluster on an agar plate. With this method, a mixture of cells is spread over the surface of a agar-based nutrient in a petri dish, that makes that less bacterial cells are deposited at widely separated point on the surface and, after incubation, they develop into colonies.
On the other hand, the best method to count colonies is the pour plate method. It helps to enumerate bacterial cells in a mixed sample, often used to count the number of microorganisms in those samples, which are added to a molten agar medium before its solidification occur. The result is colonies uniformly distributed throughout the solid medium when the appropriate sample dilution is plated.
Answer:
The limiting resource within an ecosystem determines the carrying capacity (indicated in ecology by the letter, “K”), which is the maximum number of individuals in a population that a habitat can support without environmental degradation.
Explanation:
Answer: Frameshift mutation
Explanation: Frameshift mutation arise from the addition or deletion of nucleotides from a particular DNA fragment.
Answer:
it's because of a pigment called cholorophyll present in leaves..
Answer: The offspring will not be genetically identical to the mother because the process of mitosis mixes chromosomes frome the mom and dad.
