Heterogeneous mixture
a. vinegar
b. air
c. chunky peanut butter

The best answer is C.A heterogeneous mixture consists of two or more materials that have been physically combined but are unevenly mixed and can easily be identified from each other.

 Chunky peanut butter is an uneven mix of peanuts and other food products.  Bits of peanuts can easily be identified from the rest of the butter.

Other examples are :

1. mixture of sand and iron filings.2. Mixture of gold and silver powder.3. Vegetable or fruit  salad.4. Mixture of sand and water.5. Mixture of oil and water.6. Mixture of sand and fine gravel

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.

that is true   : ) hope this you