Two parents think their baby was switched at the hospital. Its 1968, so DNA fingerprinting technology does not exist yet. The mother has blood type "o," the father has blood type "A," and the baby has blood type "0."
No chance at all that the baby is theirs.
The baby could be theirs it mom's blood genotype is BU
The baby could be theirs it mom's blood genotype is heterozygous O.
The baby could be theirs il dad's blood genotype is heterozygous A.

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

answer by yourhope:

answer is

human impact on the environment can be seen in the deterioration of the !

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all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex