What causes the heat island" effect?

Paramecium was found to occupy 20% of the FOV of a microscope at 40X magnification power. How many paramecium can be accommodate

lana [24]

5 Paramecium could be accommodated in this FOV.

Explanation:

FOV refers to the field of view of the microscope.

It is the maximum length or area of specimen you can observe in a single view.

If a single paramecium occupies 20 % of the Entire FOV.

Then the number of paramecium that will be accomodate 100% of FOV will be given by ,

$\frac{100}{20} = 5$ Paramecium.

which is equal to 5.

3 0

3 years ago

Let P = purple flowers and p = white, and T = tall plants and t = dwarf. What combinations of gametes could be produced by a het

kirill [66]

Answer:

The combinations of gametes that could be produced from heterozygous individuals for both traits are PT, Pt, pT and pt.

Explanation:

An individual is heterozygous for two traits, flower color and stem height, with a PpTt (dihybrid) genotype and a phenotype showing the dominant traits, purple flowers and tall stem.

The genes of this individual for the above-mentioned traits contain different alleles, and taking into account the independent segregation of characters, the alleles present in its gametes could be:

Both dominant alleles: PT
One dominant and one recessive allele Pt or pT
Both recessive alleles: pt

Therefore, the traits of its offspring will depend on the alleles for those traits present in the gamete to which they are combined.

6 0

3 years ago

Griffith called the process he observed transformation because

Eva8 [605]

Answer:

The correct answer would be the harmless bacteria had been transformed.

Griffith used two different strains of the bacteria Streptococcus pneumoniae - type-III-S or smooth strain and type II-R or rough strain.

Smooth strain had protective covering around itself (protect itself from hosts's immune system) and was able to kill the mice.

Rough strain did not have any protective covering around itself and thus could be easily removed by the immune system Hence, it was not able to kill the mice.

In addition, heat killed smooth strain was also not able to kill the mice. However, when remains of it was added with rough strain then the blend was able to kill the mice.

Lastly, he was able to isolate living bacteria of both the strains.

He concluded that non-lethal type II-R strain was transformed into lethal type II-S strain by "transforming principle" (which we know today as DNA) that was supposed to be the part of dead III-S strain bacteria.