Biology, 10.10.2019 05:10 nickname0097

Azotobacter is a genus of bacteria that live in soil and have the following characteristics: they are bacilli. they are gram-negative. they are obligate aerobes. they can fix nitrogen. (unlike some other nitrogen-fixing bacteria, which associate with the roots of plants, azotobacter species are free-living.) select the four statements that are true for bacteria in the genus azotobacter. view available hint(s) select the four statements that are true for bacteria in the genus azotobacter. they can carry out anaerobic respiration in an environment that lacks o2. they are shaped like rods. they use o2 for cellular respiration. they have the appearance of coils or corkscrews. they require amino acids or other organic molecules as a source of nitrogen. they can convert atmospheric nitrogen to ammonia. they have a relatively thin layer of peptidoglycan in their cell wall. they appear purple after gram staining. they are poisoned by o2.

Answers: 1

Show answers

Another question on Biology

Biology, 21.06.2019 22:00

Which of the following scenarios is an example of the bottleneck effect? answers a in south africa, much of the afrikaner population is descended from a small number of dutch colonists. in this population, this is an unusually high frequency of pseudoxanthoma elasticum (pxe), an elastic tissue disorder. b four white-tailed deer are introduced to a park in finland. thirty years after their introduction scientists compare the genes in the population and find that there is no variation. c during the industrial revolution, london's air became filled with soot. as a result, birds started eating more of the lighter moths because they were easier to spot than their darker counterparts. over time, the moth population changed so that there were more darker moths than lighter ones. d 10% of the population of american alligators in an area have the recessive trait albinism. a massive flood results in the death of 80% of the population. of the remaining population, 60% have the recessive trait of albinism.

Answers: 2

Answer

Biology, 22.06.2019 03:30

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins

Answers: 2

Answer

Biology, 22.06.2019 20:50

Suppose a point mutation, such as a change from an adenine to a guanine, occurs in the genome of a human sperm cell. the mutation could occur in any region of a gene. the effect of the mutation on the phenotype of the offspring will be determined by where the mutation occurs and its effect on the final gene product. in which of the following scenarios could the mutation alter the phenotype of the offspring? select all of the scenarios that apply the mutation occurs in the promoter and affects the rate of gene transcription. the mutation results in a new, dominant allele the mutation occurs in a portion of an intron not responsible for exon splicing the mutation occurs in a gene that controls development and alters differentiation of a cell type during development. the mutation occurs in a codon and alters the function of the final protein e mutation occurs in a codon, and the amino acid sequence of the final protein is unchanged.

Answers: 1

Answer

Biology, 22.06.2019 21:30

Through wich tissue do sugar get transported to reach the leaves during growth and reproduction

Answers: 2

Answer

You know the right answer?

Azotobacter is a genus of bacteria that live in soil and have the following characteristics: they a...

Questions

Biology, 27.07.2019 10:20

Aclient has been diagnosed with type 1 diabetes mellitus. when providing instructions on sharps disposal, the nurse should instruct the client to plac...