Answer:
Prophase
Explanation:
the condensing and coiling of DNA into chromosomes. The step that takes up 60% of the time that the cell is undergoing mitosis.
Answer:
Without fires, there would be no life on Earth
. Fires are key to maintaining the proper oxygen concentration in the atmosphere; fire regulates the carbon cycle and life, as we know it, is based precisely on carbon
Explanation:
Although we tend to think of fires as a human invention that kills plants, animals, people, fire, as with rain or wind, is an essential natural component, basic to maintain the planet's biodiversity.
As for example, grassland ecosystems are also benefited by the same fires that allow renewal, and generate natural sustainability on the earth through the carbon cycle.
Answer:
Explanation:
This is because the sieve plate interconnected like that help in exchange of substances or transport of substances between element cell and it act as a barrier to prevent the sap from been loss when phloem is damaged or cut. The sieve plates form the sieve tube which is the conducting element of the phloem. It is formed from series of elongated cells that are interconnected by perforations in their walls.
5 chromosomes. Meiosis results in 4 haploid cells, meaning they have "n" pairs of chromosomes. The diploid cell that the 10 chromosomes originated in has "2n" pairs. This leaves us with a simple equation to solve the problem, 2n=10, so n must equal 5 chromosomes.
Answer:
No children will have blue eyes all of them carry brown eyes only.
Explanation:
The cross between a male with bb genotype and female with BB genotype will be as follows :
The gametes will be formed
male: b and b
female: B and B
By Punnett square:
B B
b Bb Bb
b Bb Bb
As all the offspring will have a heterozygous condition with dominant B (Brown) and recessive b( blue) so there are no offspring will be with the phenotype of the blue eyes.
