Answer:
8%
Explanation:
Given that,
Mass of solute = 8 g
Mass of soultion, (mass of alloy) = 100 g
We need to find the percent by mass of 8.0g copper is added to enough zinc to produce 100g an alloy. It can be calculated by the formula as follows :

So, the percent by mass is 8%.
A. direct B. indirect C. direct D. indirect
Competition occurs by direct and indirect means. Organisms interact directly by fighting (aggression) for scarce resources. Two eagles fighting over the salmon carcass and two colonies of ant clashing over a wasp are samples of aggression (direct competition)
Indirect competition happens when there is a common or limited <span>supply of at least one resource (food, water, and territory). </span>Use of this resource lessens and later depletes the amount available to others, or they compete for space.<span> Gray foxes preying on penguins and squirrels relying on nuts for food are samples of indirect competition.</span>
A karyotype shows the _46_ chromosomes sorted and isolated from a cell in _Metaphase_
<span>Amount of salt is the dependent variable</span>
Correct answer: "<span>0 homozygous black (bb): 1 heterozygote (black) (bb): 1 homozygous orange "
By crossing a </span><span>heterozygous black-eyed individual (one dominant allele and one recessive allele) with a homozygous orange-eyed individual (only recessive alleles), the possible combinations of the gametes from each individual will lead to the ever presence of a recessive allele (the only one that is passed from the homozygous recessive parent) in the offspring, and either a dominant allele or a recessive allele from the heterozygous parent. So, the outcome offspring will either be heterozygous (with a dominant allele from the heterozygous parent) or homozygous recessive (with a recessive allele from the heterozygous parent). It is impossible to form homozygous dominant individuals from this crossing.
So, the resultant genotypic ratio from this crossing is 0 homozygous dominant:1 heterozygous:1 homozygous recessive.</span>