Answer:
Explanation:
A Punnett square shows the probability of an offspring with a given genotype resulting from a cross. It does not show actual offspring. ... The probability that the first offspring will have the genotype “aa” is 25% and the probability of the second offspring having the genotype “aa” is still 25%.
My guess is that fat-soluble toxins that may occur in freshwater ecosystems would most affect apex species in these ecosystems. This is because fat-soluble toxins are stored in the fat reserves of animals, and then bioaccumulate up the food chain. So in this case, most of the toxin is not secreted, but stored within the food chain, and bioaccumulates, with the concentration becoming higher the further up the food chain.
There are several organ systems in the body. One of them would be the respiratory system. There are many more including the heart, digestive, and the skeletal.
Can u please add a little more? I don't know anymore.
Answer:
Brainliest please
Explanation:
A confirmation test refers to a lab procedure conducted after an initial screen of a submitted sample (commonly urine, hair, blood, breath, or oral fluids) indicates positive results of drug metabolites in the system.
The mutation<span> caused by the addition of a nucleotide to an already existing gene sequence is duplication.</span>
