Answer:
The correct answer is "190 um".
Explanation:
The given values are:
Field of view,
= 380 um
Percentage,
= 50%
Now,
The size of flea occupied will be:
= 
= 
= 
Their white fur helps them blend in with the snow and ice. A polar bear<span> has a layer of fat under its skin which helps it stay warm. It also has a thick layer of fur. hope this helps!!</span>
I attached the answer, I hope it help you.
Answer: Several types of evidence supported Hess's theory of sea-floor spreading: eruptions of molten material, magnetic stripes in the rock of the ocean floor, and the ages of the rocks themselves. This evidence led scientists to look again at Wegener's hypothesis of continental drift.
Explanation:
Answer:
The proportion of the genotypic recombinants among the offspring from this cross is 75%
Explanation:
Separating the alleles from the parents independently, We have AB, Ab, aB, and ab.
These should be crossed using punnet's square, we will therefore get the genotypic of the 16 progenies as: AABB, AABb, AaBB, AABb, AAbb, AaBb, AaBB, AaBb, aaBB, AaBb, Aabb, aaBb, aabb, aaBb, Aaaa and AaBb. From these, only those in bold retained the genotype of their heterozygous parents. Therefore, 12 out of 16 are genetic recombinant, which are the offspring that differs from their parents after a cross. This made the proportion to be 12/16 X 100 = 75%.
