1) Are they reliable?
2) Are they relevant?
3) Are they recent?
4) Are they sound resources?
5) Are they a primary source?
6) Are they a secondary source?
The answer is : randomization was not used in sample selection. The major difference between experimental and quasi-experimental designs is lack of randomization in sampling selection.
If B and b are the two alleles , B + b = 1 and B ^2 +2 Bb + b ^2 = 1.
If 16% of mice are homozygous black , B ^ 2 =0 .16, meaning B = 0 .4 and b = 1 - 0. 4 = 0 .6 .
Answer = Notice how you don't even need to know that 24% of the mice are heterozygous .
The apple pudding which is prepared by the combination of the sugar, apples, lemon juice, and butter belongs to the category of mixture. Since, multiple substances are included in the apple pudding recipe, it falls under the category of elements. A mixture can be defined as the substance which is formed by the mixing of the two or more than two substances. A compound can be defined as anything which is composed of two or more than two elements. . On the other hand, an element can be defined as the substance which have the same atoms present in it. Atom is the smallest constituent having chemical properties. and a group of atoms is known as molecules. Hence, an apple pudding is a mixture.
Answer:
d.They are still very common ,but threatened with increasing harvesting for timber.
Explanation:
Brazil's Araucaria trees:
These trees are very soft and can be cut so easily.Brazilian pines is also know as Araucaria tree.
Before 1950's or 60's the number of trees were more but now due to harvesting the number of trees become less.The these trees are used for timber and for glue also.
In the present time the availability of these trees threatened with increasing harvesting for timber.
So the our option d is correct.
