A scientific theory is an explanation of an aspect of the natural world that can be repeatedly tested and verified in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results. Where possible, theories are tested under controlled conditions in an experiment. So it’s the last one.
A. mechanical waves.
Basically, they need particle interaction which includes having a medium to transport their energy from one place to another.
Part A done, you will find the answers below.
<u>Hope this helps!</u>
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>
Answer:
C. Organisms are now divided into three kingdoms.
Explanation:
In the early 1860s, a German scientist named Ernst Haeckel suggested using a three kingdom system of classification. Haeckel's three kingdoms were Animalia, Plantae, and Protista.