Answer:
Temprature, salinity , density and pressure
Artificial selection is the breeding of organisms to produce specific traits. An example would be to breed two specific dogs to get one dog with different traits such as herding, agility, and playfulness.
A positive control is a group in an experiment that receives a treatment with a known result, and therefore should show a particular change during the experiment. It is used to control for unknown variables during the experiment and to give the scientist something to compare with the test group.
Answer:
In the ABO series, the gene for blood type O is<u><em> recessive</em></u>, while A and B are <u><em>dominant </em></u>genes, and AB is <u><em>co-dominant</em></u>.
Explanation:
According to the ABO blood system, the A blood group might have the genotype AA or AO. The B blood group might have genotype BB or BO. The O blood group will have the genotype OO. The Ab blood group will have genotype AB, A, B or O.
The O is the recessive allele but a person with O blood type can transfer blood to all other blood types. The AB is co-dominant and it can accept blood from all other blood types.
Wow that is a lot of reading. You should be wise and do it yourself. To much sorry .
