Answer:
B. So you can always see the entire object at the higher magnification
Explanation:
A microscope is used to view objects smaller than the naked or unaided eyes can see. The objective lens, in conjunction with the occular or eye lens, is used to achieve this purpose. The objective lens are of different magnifications as follows: 10X, 40X, 100X etc.
However, as the magnification increases i.e. higher objective, the object in the field of view becomes smaller and less focused. Hence, the object in the field of view must first be centered at a lower magnification/objective lens before changing to a higher one in order for the entire object to be seen at a higher magnification.
Answer:
A. Their genotype is Ee.
B. They have a 25% or 1 out of 4 chance of having an offspring with emerald eyes.
Explanation:
A. If one of the babies has emerald eyes, it means it has 2 recessive alleles. so, its genotype is ee. If the parents have diamond eyes, they have to have at least one dominant allele, but they cannot have 2 dominant alleles because one of their offspring have diamond eyes. So, their genotype is Ee.
B. The parents have a 25% or 1 out of 4 chance of having an offspring with emerald eyes, and 75% or 3 out of 4 chance of having offspring with diamond eyes.
<span>A heterogeneous mixture has particles that are not uniformly distributed, but a homogeneous mixture has particles that are uniformly distributed.
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